JP4370136B2 - Information processing apparatus and management apparatus - Google Patents

Description

  The present invention relates to an information processing apparatus that updates an original program by replacing and adding subprograms, and a management apparatus that manages the information processing apparatus.

  As prior arts related to the present invention, there are a "program storage system" described in Japanese Patent Laid-Open No. 4-137136 and a "program maintenance system" described in Japanese Patent Laid-Open No. 5-66946.

  In the “program storage system” described in Japanese Patent Laid-Open No. 4-137136, the information processing apparatus is initialized when transferring an original program stored in a ROM (Read Only Memory) to a RAM (Random Access Memory). The operation to change the transfer destination cannot be performed, the overwrite correction data stored in the EEPROM (Electrically Erasable Programmable Read-Only Memory) is read, the write address and the write data are extracted from the overwrite correction data, and the write address The original program is updated by writing the write data in the area indicated by.

  For this reason, in the prior art, there is a problem that binary correction is necessary to correct the program. In addition, there is a problem that the execution program cannot be corrected by correcting the source code having high efficiency, accuracy and manageability. In the conventional method, the binary code needs to be corrected in order to correct the program. This is because it cannot cope with the size change / branch destination modification, and the program cannot be modified by subprogram replacement / addition even if the source code is modified. In addition, there are problems that it takes time to modify the program and management becomes complicated.

  In the “program maintenance method” described in Japanese Patent Laid-Open No. 5-66946, the information processing apparatus transfers all original subprograms (subprograms constituting the original program) stored in the ROM to the RAM. Then, an update subprogram for updating the original program is transferred to the RAM. Then, it is determined which one of the transferred original subprogram and update subprogram is to be executed, and the program is executed.

  As described above, in the related art, since the original subprogram that is not executed by the execution of the update subprogram is also transferred to the RAM, the original subprogram and the update subprogram have two planes, and the update subprogram There is a problem that the required RAM capacity increases as the number increases.

  Furthermore, the “program maintenance method” described in Japanese Patent Application Laid-Open No. 5-66946 discloses a management apparatus that manages information processing apparatuses.

  In the management device, the operator creates and registers correction data necessary for correction. Here, the correction data indicates an update subprogram group and management information stored in the EEPROM of the information processing apparatus, and an EEPROM rewriting program.

  On the other hand, the information processing device transmits the version information indicating the program version of the stored subprogram to the management device. If the received version information is not the latest version, the management device transmits the registered correction data to the information processing device. Send to.

  In the information processing apparatus, the correction data received from the management apparatus is written into the RAM.

  The management apparatus issues an EEPROM rewrite request command for requesting rewriting of the EEPROM of the information processing apparatus.

  In the information processing apparatus, an EEPROM rewrite program is executed based on an EEPROM rewrite request command from the management apparatus, and the original program is updated by rewriting the EEPROM with data on the RAM.

  The EEPROM cannot be partially erased in units of sectors like a flash memory. Therefore, it is necessary to rewrite the entire area after erasing the entire area.

  In addition, there is a problem that the EEPROM cannot be rewritten unless the operator creates an EEPROM rewriting program.

The information processing apparatus holds only the program version and transmits it to the management apparatus. The management device does not receive information about the model. For this reason, when there are a plurality of types of information processing apparatuses having different program configurations, the management apparatus cannot determine the type of the information processing apparatus. As a result, there is a problem that the same number of management devices as the types of information processing devices are required.
JP-A-4-137136 JP-A-5-66946

  The main object of the present invention is to solve the above-described problems of the prior art, enabling program correction by changing source code, enabling RAM capacity to be reduced, and rewriting and storing only the portions that need correction. It is an object of the present invention to realize an information processing apparatus and a management apparatus that can rewrite an update subprogram without generating and sending a rewriting program.

An information processing apparatus according to the present invention includes:
An information processing apparatus capable of updating a program in units of subprograms by combining a plurality of original subprograms constituting a predetermined original program and an update subprogram for updating the original program,
A main storage device;
A read-only original subprogram storage for storing a plurality of original subprograms;
An update subprogram storage for storing at least one update subprogram;
The original subprogram that is not required to be executed by executing the update subprogram from among the plurality of original subprograms and the original subprogram to be executed together with the update subprogram are determined, and the original subprogram to be executed to be executed together with the update subprogram is determined. A subprogram transfer unit for transferring from the original subprogram storage unit to the main storage device, and transferring an update subprogram from the update subprogram storage unit to the main storage device;
A subprogram adjustment unit that adjusts the correspondence between the subprograms for the execution target original subprogram and the update subprogram transferred to the main storage device by the subprogram transfer unit;
A program execution unit that executes the original subprogram to be executed and the updated subprogram after the association between the subprograms is adjusted by the subprogram adjustment unit.

  Thus, according to the present invention, sub-program units can be replaced, original sub-programs can be rearranged, and correspondence between sub-programs can be adjusted. The execution program can be modified.

  In addition, since only the execution-target original subprogram to be executed together with the update subprogram is transferred in the transfer of the original subprogram, it is not necessary to have two sides of the original subprogram and the update subprogram in the main storage device. The storage area can be used efficiently.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating a configuration example of the information processing apparatus according to the present embodiment.

The information processing apparatus 1 according to the present embodiment includes a CPU (Central Processing Unit) 11, a reset unit 12, and a ROM (Read Only).
Memory) 13, flash memory 14, and RAM (Random Access Memory) 15.

  The ROM 13 stores an H / W (hardware) initialization unit 131, an original subprogram transfer unit 132, an update subprogram transfer unit 133, a subprogram adjustment unit 134, and a program execution unit 135, which are programs. Original subprograms a to d constituting the original program are stored in the original subprogram storage area 136. The original subprogram is a subprogram that is the first version.

  Since the original subprograms a to d are stored in the ROM 13, in order to update the original program, one of the original subprograms may be replaced with an update subprogram described later, or an update subprogram may be added. is necessary. The update subprogram is a subprogram that becomes a version after the second edition.

  The H / W initialization unit 131 initializes hardware (H / W) installed in the information processing apparatus 1 when the information processing apparatus 1 is activated.

  The original subprogram transfer unit 132 refers to the original subprogram storage information 1411 stored in the flash memory 14 when executing the program, and stores the original subprogram to be executed in the execution program of the RAM 15 as the main storage device. Transfer to area 151. The original subprogram to be executed is called the execution target original subprogram. Details of the original subprogram storage information 1411 will be described later.

  The update subprogram transfer unit 133 refers to the update subprogram storage information 1412 stored in the flash memory 14 when the program is executed, and stores the update subprogram stored in the flash memory 14 in the RAM 15 as a main storage device. To the execution program storage area 151. Details of the updated subprogram storage information 1412 will be described later.

  The subprogram adjustment unit 134 refers to the branch destination adjustment information 1413 stored in the flash memory 14 when the execution program is generated, and associates the branch destination of the branch process with respect to the execution target original subprogram transferred to the RAM 15. Make adjustments. Details of the branch destination adjustment information 1413 will be described later. Note that a program composed of an execution target original subprogram and an updated subprogram before adjustment of branch destination correspondence is performed by the subprogram adjustment unit 134 is referred to as a temporary execution program. A program composed of the execution target original subprogram and the updated subprogram after the adjustment of the correspondence is referred to as an execution program.

  The program execution unit 135 is a program execution unit that executes the execution program after the branch destination association is adjusted by the subprogram adjustment unit 134.

  The flash memory 14 has a correction table storage area 141 and an update subprogram storage area 142.

  In FIG. 1, the update subprogram storage area 142 stores update subprograms c and e.

  The update subprogram c is a replacement subprogram that updates the original program by replacing the original subprogram c, and the update subprogram e is an additional subprogram that updates the original program by adding to the original program.

  In this embodiment, since there is no corresponding update subprogram in the original subprograms a, b, and d, these original subprograms are the execution targets, and the original subprogram c is not the execution target and is updated instead. The subprogram c becomes the execution target, and the update subprogram e becomes the execution target in the form of being added to the original program.

  The correction table storage area 141 stores original subprogram storage information 1411, updated subprogram storage information 1412, and branch destination adjustment information 1413. The original subprogram storage information 1411, the updated subprogram storage information 1412, and the branch destination adjustment information 1413 stored in the correction table storage area 141 are referred to as a correction table.

  The original subprogram storage information 1411 specifies an execution target original subprogram, and for each execution target original subprogram, a storage area in the original subprogram storage area 136 of the ROM 13 and an execution program storage area 151 of the RAM 15. It is the information which shows each storage area in. FIG. 2 shows an example of the original subprogram storage information 1411.

  In the example of FIG. 2, the subprogram names a, b, and d indicate that the original subprogram is to be executed, and the RAM storage address, ROM storage address, and program size are shown for each original subprogram. A storage area in the execution program storage area 151 of the original subprogram and a storage area in the original subprogram storage area 136 are displayed.

  When executing the program, the original subprogram transfer unit 132 refers to the original subprogram storage information 1411 to determine the execution target original subprogram, and in accordance with the contents of the original subprogram storage information 1411, Each program is transferred from its ROM storage address to its RAM storage address.

  The update subprogram storage information 1412 identifies the update subprogram stored in the update subprogram storage area 142, and each storage area in the update subprogram storage area 142 of the flash memory 14 for each update subprogram. And each storage area in the execution program storage area 151 of the RAM 15. FIG. 3 shows an example of the updated subprogram storage information 1412.

  In the example of FIG. 3, the subprogram names c and e indicate that the update subprogram is stored in the update subprogram storage area 142, and the RAM storage address, flash memory storage address, The program size is shown, and the storage area in the execution program storage area 151 and the storage area in the update subprogram storage area 142 of each update subprogram are displayed.

  The update subprogram transfer unit 133 transfers each update subprogram from each flash memory storage address to each RAM storage address according to the content of the update subprogram storage information 1412 when executing the program.

  The branch destination adjustment information 1413 indicates data for adjusting the correspondence of the branch destination in either the execution target original subprogram or the update subprogram. FIG. 4 shows an example of the branch destination adjustment information 1413.

  FIG. 4 shows that the subprogram of the subprogram name d is an adjustment target of the branch destination correspondence, and an offset address and data are shown for adjusting the branch destination.

  After the execution target original subprogram and the updated subprogram are transferred to the execution program storage area 151 of the RAM 15, the subprogram adjustment unit 134 adjusts the branch destination correspondence for the target subprogram according to the branch destination adjustment information 1413. I do.

  The RAM 15 has an execution program storage area 151.

  The execution program storage area 151 stores the execution target original subprogram transferred by the original subprogram transfer unit 132 and the update subprogram transferred by the update subprogram transfer unit 133.

  As described above, in FIG. 1, the original subprograms a, b, and d and the updated subprograms c and e are stored in the execution program storage area 151.

  As shown in FIG. 1, the ROM 13 stores the original subprogram and corresponds to an example of the original subprogram storage unit. The flash memory 14 stores the update subprogram, and the update subprogram storage unit. It corresponds to the example.

  The flash memory 14 stores original subprogram storage information 1411, updated subprogram storage information 1412, and branch destination adjustment information 1413. The original subprogram storage information storage unit, the updated subprogram storage information storage unit, the branch destination This corresponds to an example of the adjustment information storage unit.

  A combination of the original subprogram transfer unit 132 and the updated subprogram transfer unit 133 corresponds to an example of a subprogram transfer unit.

  Next, the operation of the information processing apparatus 1 according to the present embodiment will be described with reference to FIG.

  First, the reset unit 12 cancels the reset (S301).

  Next, the H / W initialization unit 131 initializes hardware (H / W) (S302).

  Next, the original subprogram transfer unit 132 reads one entry from the original subprogram storage information 1411, and stores the original subprogram stored in the original subprogram storage area 136 in the execution program storage area 151 of the RAM 15 based on the read information. Transfer and store. Here, the original subprogram is read from the ROM storage address described in the original subprogram storage information 1411 and transferred to the RAM storage address described in the original subprogram storage information 1411 (S303 to S305).

  The original subprogram transfer unit 132 repeats the processing of S303 to S305 until the end code is detected in the original subprogram storage information 1411. When the end code is detected, the original subprogram transfer unit 132 determines that there is no entry in the original subprogram storage information 1411, and The subprogram transfer processing is terminated (Yes in S304).

  When the original subprogram storage information 1411 is shown in FIG. 2, the original subprogram transfer unit 132 transfers the original subprograms a, b, and d to the execution program storage area 151 of the RAM 15.

  Next, the update subprogram transfer unit 133 reads one entry from the update subprogram storage information 1412 and stores the update subprogram stored in the update subprogram storage area 142 based on the read information in the execution program storage area 151 of the RAM 15. Transfer and store. Here, the update subprogram is read from the flash memory storage address described in the original subprogram storage information 1411 and transferred to the RAM storage address described in the original subprogram storage information 1411 (S306 to S308).

  The original subprogram transfer unit 132 repeats the processing of S306 to S308 until the end code is detected in the original subprogram storage information 1411. When the end code is detected, the original subprogram transfer unit 132 determines that there is no entry in the original subprogram storage information 1411 and updates it. The subprogram transfer process is terminated (Yes in S307).

  At this stage, a group of subprograms stored in the execution program storage area 151 of the RAM 15 is referred to as a temporary execution program.

  When the update subprogram storage information 1412 is shown in FIG. 3, the update subprogram transfer unit 133 transfers the update subprograms b and e to the execution program storage area 151 of the RAM 15.

  Next, the subprogram adjustment unit 134 reads one entry from the branch destination adjustment information 1413, and overwrites and corrects the temporary execution program based on the read information (S309 to S311).

  The subprogram adjustment unit 134 repeats the processing of S309 to S311 until the end code is detected in the branch destination adjustment information 1413. When the subcode adjustment unit 134 detects the end code, it determines that there is no entry in the branch destination adjustment information 1413, and the branch destination adjustment process. (Yes in S310).

  At this stage, a group of subprograms stored in the execution program storage area 151 of the RAM 15 is called an execution program.

When the branch destination adjustment information 1413 is shown in FIG. 4, the subprogram adjustment unit 134 performs the following processing.
1) The data 5810 is overwritten on the offset 0100 of the subprogram d.
2) Overwrite data 5910 to offset 0110 of subprogram d.

  Next, the program execution unit 135 can start the execution program (S312) and execute the updated program.

  As described above, according to the present embodiment, replacement in units of subprograms is possible, the original subprograms can be rearranged, and the deviation of the branch destination caused by the rearrangement of the original subprograms can be corrected. Therefore, the execution program can be modified by modifying the source code.

  Further, it is not necessary to have two original program and update subprogram groups, and it is sufficient that the execution program has a necessary capacity, and a necessary RAM capacity can be suppressed.

Embodiment 2. FIG.
FIG. 6 is a diagram illustrating a system configuration example according to the present embodiment.

  In the present embodiment, a case where the information processing apparatus 1 and the management apparatus 2 are connected and an update subprogram, original subprogram storage information, update subprogram storage information, and the like are transmitted from the management apparatus 2 to the information processing apparatus 1 will be described. To do.

  A predetermined model code is set in the information processing apparatus 1, and the management apparatus 2 transmits an update subprogram corresponding to the model of the information processing apparatus.

  In FIG. 6, the information processing apparatus 1 and the management apparatus 2 are connected by wire, but may be connected by radio.

  As an application example of the present embodiment, it is conceivable that the information processing apparatus 1 is a mobile phone and the management apparatus 2 transmits an update subprogram corresponding to the mobile phone model to the mobile phone by wireless communication.

  First, operations of the information processing apparatus 1 and the management apparatus 2 according to the present embodiment will be outlined with reference to FIG.

  The management apparatus 2 has an original subprogram and an update subprogram for each model of the information processing apparatus, and each time a new update subprogram is generated inside the management apparatus 2 or outside the management apparatus 2, the management apparatus 2 The latest version information indicating the contents of the latest version of the subprogram is generated.

  In addition, each time a new update subprogram is generated, the management device 2 determines whether or not it is necessary to transmit a new update subprogram to the information processing apparatus 1 to which the generated new update subprogram is applied. Inquiry (S601), when the information processing apparatus 1 requests transmission of an updated subprogram, response version information indicating the current version of the subprogram of the information processing apparatus 1 is received from the information processing apparatus 1 as a response (S602). .

  When the management apparatus 2 receives the response version information from the information processing apparatus 1, the management apparatus 2 refers to the latest version information and generates original subprogram storage information and updated subprogram storage information. The original subprogram storage information and the updated subprogram storage information are the same as those described in the first embodiment.

  In addition, the management device 2 compares the response version information from the information processing device 1 with the latest version information, and identifies an update subprogram that the information processing device 1 does not own (not received).

  Further, the management device 2 generates branch destination adjustment information similar to that shown in the first embodiment.

  Further, in the management device 2, the original subprogram storage information, the updated subprogram storage information, the data size information indicating the respective data sizes of the update subprogram that is not held (not received) by the information processing device 1 and the branch destination adjustment information are stored. The original subprogram storage information, the update subprogram storage information, the update subprogram, the branch destination adjustment information, and the data size information are generated and transmitted to the information processing apparatus 1 (S603).

  As a result, the information processing apparatus 1 can acquire the update subprogram that has not been held (not received) and can update the original program by using the newly held update subprogram.

  Next, a configuration example of the management device 2 will be described with reference to FIG.

  The management device 2 includes a CPU 21, a ROM 22, a subprogram DB (database) 23, a latest version information DB 24, a model / information processing device DB 25, a communication control device 26, a RAM (1) 27, a RAM (2) 28, and a RAM (3). 29.

  The ROM 22 stores programs 271 to 278 shown on the RAM (1) 27. FIG. 7 shows a state in which the programs 271 to 278 are activated and expanded on the RAM (1) for convenience of explanation.

  The subprogram DB 23 has an original subprogram and an update subprogram for each model of the information processing apparatus, and a new update subprogram is generated each time a new update subprogram is generated inside the management apparatus 2 or outside the management apparatus 2. The update subprogram is added to the subprogram group of the corresponding model and stored. The subprogram DB 23 corresponds to an example of a subprogram storage unit.

  The latest version information DB 24 stores the latest version information indicating the contents of the latest version of the subprogram for each model of the information processing apparatus. Details of the latest version information will be described later.

  The model / information processing apparatus DB 25 stores model / information processing apparatus information that associates a model with an information processing apparatus. The model / information processing apparatus information indicates a communication ID (for example, an IP address) of the information processing apparatus for each model.

  The communication control device 26 performs wired or wireless communication with the information processing device 1. The communication control device 26 corresponds to an example of a communication processing unit.

  In the RAM (1) 27, programs shown in 271 to 278 are expanded.

  The subprogram registration unit 271 performs a new update when a new update subprogram is generated inside the management apparatus 2 or when a new update subprogram is generated outside the management apparatus 2 and input to the management apparatus 2. The subprogram is registered in the subprogram DB 23.

  When a new update subprogram is registered in the subprogram DB 23 by the subprogram registration unit 271, the latest version information generation unit 272 generates the latest version information regarding the model to which the update subprogram is applied. The latest version information is generated for each model of the information processing apparatus. The latest version information generation unit 272 registers the latest version information in the latest version information DB 24 when generating the latest version information.

  FIG. 9 shows an example of the latest version information generated by the latest version information generation unit 272.

  In the example of FIG. 9, the RAM storage address, flash memory / ROM storage address, program size, and version are shown for the subprogram names a to e.

  Here, the RAM storage address indicates a storage address on the RAM when each subprogram is transferred to the RAM which is the main storage device in the information processing apparatus 1.

  The flash memory / ROM storage address indicates the address on the ROM if the latest version of the subprogram is the original subprogram, and indicates the address on the flash memory if the latest version of the subprogram is the update subprogram.

  The program size indicates the data size of the latest version of the subprogram.

  As for the version, 1.0 means an original subprogram, and 1.1 and later means an updated subprogram.

  Since the latest version information generation unit 272 knows the configuration of the ROM, flash memory, and RAM of each model, it can generate the latest version information as shown in FIG. 9 for each model.

  When the latest version information is generated by the latest version information generation unit 272, the update inquiry unit 273 issues an update command that inquires whether or not the information processing apparatus 1 needs to transmit an update subprogram that is not held (not received). The generated update command is transmitted from the communication control device 26 to the information processing device 1. The update command has the configuration shown in FIG. 10, and includes a header, an update code, a model code, and program version information.

  The update code is a code indicating an update command, and the model code is a code indicating an applicable model. The program version information indicates a program version as a whole program.

  The update inquiry unit 273 receives a response command that is a response to the update command from the information processing apparatus 1 after transmitting the update command.

  The response command has the configuration shown in FIG. 11, and includes a header, a response code, a model code, and program version information. The response code is a code indicating a response command, and the model code is a code indicating an applicable model. When the information processing apparatus 1 requests transmission of an update subprogram, the program version information includes information indicating the program version of the entire program held by the information processing apparatus 1. This program version information is called response version information. When the information processing apparatus 1 does not request transmission of the update subprogram, the model code and the program version information are set to 0.

  FIG. 11 shows an example in which response version information is included in the response command.

  The storage information generation unit 274 generates transmission original subprogram storage information 2821 and transmission update subprogram storage information 2822 based on the latest version information.

  When the latest version information indicates that the latest version is the original subprogram, the storage information generation unit 274 displays transmission original subprogram storage information 2821 that instructs the original subprogram to be an execution target subprogram. Generate. The transmission original subprogram storage information has the configuration shown in FIG. 12, for example, and specifies the original subprogram to be executed as subprograms a and d, as in the first embodiment, Regarding the subprogram, the storage address of the RAM of the information processing apparatus 1, the storage address of the ROM of the information processing apparatus 1, and the program size are shown. These RAM storage address, ROM storage address, and program size are the same as those of the latest version information in FIG.

  In addition, the storage information generation unit 274 transmits transmission update subprogram storage information that instructs the update subprogram to be an execution target subprogram when the latest version is displayed as the update subprogram in the latest version information. 2822 is generated. The transmission update subprogram storage information has the configuration shown in FIG. 13, for example, and specifies the update subprogram to be executed as subprograms b, c, and e, similar to the one shown in the first embodiment, For each subprogram, the storage address of the RAM of the information processing apparatus 1, the storage address of the flash memory of the information processing apparatus 1, and the program size are shown. These RAM storage address, flash memory storage address, and program size are the same as those of the latest version information in FIG.

  Further, the storage information generation unit 274 stores the generated transmission original subprogram storage information and transmission update subprogram storage information in the transmission data storage area 282.

  The storage information generation unit 274 corresponds to an example of an original subprogram storage information generation unit and an update subprogram storage information generation unit.

  The branch destination adjustment information generation unit 275 generates transmission branch destination adjustment information 2823. The transmission branch destination adjustment information 2823 is information for adjusting the correspondence of the branch destination so that the correspondence with the branch destination in the branch processing can be maintained even after the information processing apparatus 1 updates the original program with the new update subprogram. It is. In the information processing apparatus 1, for example, when the original subprogram is replaced with a new update subprogram, the branch destination in the subprogram that has not been replaced may be changed. This is information for adjusting such a change so that the correspondence of the branch destination before the replacement can be maintained after the replacement.

  FIG. 14 shows an example of branch destination adjustment information. The transmission branch destination adjustment information in the present embodiment has the same configuration as the branch destination adjustment information shown in the first embodiment.

  Further, the branch destination adjustment information generation unit 275 stores the generated transmission branch destination adjustment information in the transmission data storage area 282.

  Note that the branch destination adjustment information generation unit 275 corresponds to an example of an adjustment information generation unit.

  The transmission subprogram specifying unit 276 compares the response version information from the information processing apparatus 1 with the latest version information, and specifies an update subprogram that the information processing apparatus does not have (not received) as a transmission subprogram.

  Also, the transmission subprogram specifying unit 276 stores the specified transmission subprogram in the transmission data storage area 282.

  The transmission subprogram specifying unit 276 corresponds to an example of an update subprogram specifying unit.

  The data size information generation unit 277 generates transmission data size information indicating each data size of transmission original subprogram storage information, transmission update subprogram storage information, transmission branch destination adjustment information, and transmission subprogram.

  Further, the data size information generation unit 277 stores the generated transmission data size information in the transmission data storage area 282.

  The transmission data transmission processing unit 278 includes transmission original subprogram storage information 2821, transmission update subprogram storage information 2822, transmission branch destination adjustment information 2823, transmission data size information 2824, and transmission subprogram 2825 stored in the transmission data storage area 282. Is transmitted from the communication control device 26 to the information processing device 1.

  Transmission original subprogram storage information 2821, transmission update subprogram storage information 2822, transmission branch destination adjustment information 2823, transmission data size information 2824, and transmission subprogram 2825 are referred to as transmission data.

  The RAM (2) 28 includes a response version related information storage area 281 and a transmission data storage area 282.

  The response version related information storage area 281 stores the response version information 2812 received from the information processing apparatus 1 and the subprogram of the version indicated in the response version information (hereinafter referred to as response version subprogram).

  In the transmission data storage area 282, pieces of information 2821 to 2825 constituting transmission data are stored.

  The RAM (3) 29 has a latest version related information storage area 291.

  The latest version related information storage area 291 stores the latest version information 2912 corresponding to the model of the information processing apparatus 1 and the latest version subprogram (hereinafter referred to as the latest version subprogram) indicated in the latest version information. .

  The RAM (3) corresponds to an example of the latest version information storage unit that stores the latest version information.

  Next, a configuration example of the information processing apparatus 1 according to the present embodiment will be described with reference to FIG.

  In FIG. 8, the CPU 11 and the reset means 12 are the same as those shown in the first embodiment.

  The communication control device 16 performs wired or wireless communication with the management device 2.

  In this embodiment, the ROM 13 includes an inquiry response unit 1311, a transmission data reception processing unit 1312, a subprogram storage area designation unit 1313, a subprogram write processing unit 1314, a reset instruction unit 1315, and a program version information generation unit 1316. Stored.

  The inquiry response unit 1311 receives an update command from the management device 2 via the communication control device 16, generates a response command that is a response to the update command, and sends the generated response command from the communication control device 16 to the management device 2. Send to.

  The transmission data reception processing unit 1312 receives the transmission data transmitted from the management device 2 via the communication control device 16 and stores the received transmission data in the reception data storage area 153 of the RAM 15. Note that the transmission data is referred to as reception data after being stored in the reception data storage area 153 of the RAM 15. Also, after each piece of information constituting transmission data is also stored in the reception data storage area 153, reception data size information 1532, reception original subprogram storage information 1533, reception update subprogram storage information 1534, reception branch destination, respectively. Called adjustment information 1535 and reception subprogram 1536.

  The subprogram storage area specifying unit 1313 generates new sector storage information 1541 for specifying the storage contents (sector data) of the reception subprogram 1536 for each sector of the flash memory 14.

  Since the flash memory 14 is rewritten for each sector when information is rewritten, in order to store the reception subprogram in the flash memory 14, the reception subprogram is divided into sector units to form sector data. It is necessary to store the sector data for each sector.

  Therefore, the subprogram storage area designating unit 1313 designates the storage contents (sector data) of the reception subprogram 1536 for each sector of the flash memory 14.

  The subprogram writing processing unit 1314 divides the received subprogram 1536 into sectors according to the designation of the subprogram storage area designating unit 1313 to form sector data, and designates each sector data by the subprogram storage area designating unit 1313. Is written to the designated sector (storage area).

  The reset instruction unit 1315 instructs the reset unit 12 to reset the information processing apparatus 1 in a predetermined case.

  The program version information generation unit 1316 generates program version information indicating the version of the subprogram held by the information processing apparatus 1 and stores the generated program version information in the model code / version storage area 143 of the flash memory 14. To do.

  Although not shown in FIG. 8, the information processing apparatus 1 according to the present embodiment also has the elements 131 to 136 shown in FIG. 1 in the ROM 13. The operation shown in the first embodiment is performed using each element 136.

  In the correction table storage area 141 of the flash memory 14, sector storage information 1414 is stored in addition to the original subprogram storage information 1411, the updated subprogram storage information 1412, and the branch destination adjustment information 1413.

  The sector storage information 1414 designates sector data (stored contents of the update subprogram) to be stored in each sector for each sector of the flash memory 14.

  Note that information stored in the flash memory 14 of FIG. 8 (original subprogram storage information 1411, update subprogram storage information 1412, branch destination adjustment information 1413, sector storage information 1414, update subprograms b and e, and program version) Information 1432) is information before the process of FIG. 18 described later is performed, that is, information at the time of the previous update.

  The model code 1431 and program version information 1432 are stored in the model code / version storage area 143 of the flash memory 14.

  The model code 1431 is a code indicating the model of the information processing apparatus 1.

  The program version information 1432 is information indicating the current version of the subprogram held by the information processing apparatus 1, and is generated and stored by the program version information generation unit 1316.

  Next, the contents stored in the RAM 15 will be described.

  The reception data storage area 153 is a storage area for storing transmission data received by the transmission data reception processing unit 1312. Reception data size information 1532 is transmission data size information after reception, reception original subprogram storage information 1533 is transmission original subprogram storage information after reception, and reception update subprogram storage information 1534 is transmission update subprogram after reception. It is program storage information, reception branch destination adjustment information 1535 is transmission branch destination adjustment information after reception, and reception subprogram 1536 is transmission subprogram after reception.

  The duplicate sector storage information 1531 is the sector storage after the sector storage information 1414 stored in the correction table storage area 141 of the flash memory 14 is copied (copied) to the reception data storage area 153 by the subprogram storage area specifying unit 1313. Information.

  In the new correction table storage area 154, the correction table (replica sector storage information 1531, received original subprogram storage information 1533, received update subprogram storage information 1534, received branch destination adjustment information 1535 stored in the received data storage area 153 is stored. ) Is stored.

  The new correction table is obtained by adding duplicate flash memory sector storage information to the reception correction table.

  The new correction table includes new flash memory sector storage information, reception original subprogram storage information, reception update subprogram storage information, and reception branch destination adjustment information.

  The new correction table is copied to the correction table storage area in the flash memory. As shown in the first embodiment, it is used for an operation for generating an execution program after reset release. The new flash memory sector storage information is used to generate duplicate flash memory sector storage information when the subprogram is next updated.

  The subprogram storage area designating unit 1313 writes the correction table (replica sector storage information 1531, received original subprogram storage information 1533, etc.) stored in the reception data storage area 153 into the correction table storage area 141 of the flash memory 14. The modification table is modified to generate a new modification table (new sector storage information 1541, new original subprogram storage information 1542, new update subprogram storage information 1543, new branch destination adjustment information 1544), and the generated new modification The table is stored in the new correction table storage area 154.

  The correction information RAM storage information 152 is information used when the subprogram storage area specifying unit 1313 generates a new correction table from the correction table stored in the reception data storage area 153, and the reception data received from the management device 2. Is information stored in the RAM 15 (start address, size). Data necessary for rewriting the flash memory is stored in the RAM 15, and the correction information RAM storage information is a table indicating how each data is stored. Each time data is transmitted from the management device, the data type and size are different. When generating a new correction table and sector data, this is a means for causing each generating means to notify the address and size of data to be referred to.

  FIG. 16 shows an example of the correction information RAM storage information 152.

Each data item (entry) is information relating to the following areas.
Correction table sector: New correction table sector storage area transmission original P storage table: reception original subprogram storage information storage area transmission correction P storage table: reception update subprogram storage information storage area transmission branch destination correction table: reception branch destination adjustment Information storage area subprogram c :: Storage area of reception subprogram c Subprogram e: Storage area of reception subprogram e Sector data save area 0: Area sector of sector data save area 0 used when sector data is generated Data save area 1: Sector data save area 0 area used when generating sector data The sector save area 155 flushes the new correction table stored in the new correction table storage area 154 by the subprogram write processing unit 1314. Storage of correction table in memory 14 This is a save area used when writing to the area 141. In FIG. 8, the sector save area 155 includes two save areas, sector save areas 0 and 1.

  Next, operations of the information processing apparatus 1 and the management apparatus 2 according to the present embodiment will be described with reference to FIG.

  First, when a new update subprogram is generated inside the management device 2 or outside the management device 2, the subprogram registration unit 271 adds the update subprogram to the corresponding subprogram group of the model and stores it in the subprogram DB 23. At the same time, the latest version information generating unit 272 is notified of the version, program size, and applicable model of the updated subprogram. The latest version information generating unit 272 reflects the updated subprogram to generate the latest version information, and the latest It is registered in the version information DB 24 (S341).

  The latest version information generation unit 272 notifies the update inquiry unit 273 of the applicable model and program version information (program version information shown in FIG. 10) when generating and registering the latest version information, and the update inquiry unit 273 receives the model / information. The processing device DB 25 is searched to identify the communication ID of the information processing device corresponding to the model notified from the latest version information generation unit 272, and the program version notified from the latest version information generation unit 272 as shown in FIG. An update command including information is generated (S342), and the update command is transmitted to the information processing device 1 via the communication control device 26 (S343).

  Next, in the information processing device 1, the inquiry response unit 1311 receives the update command via the communication control device 16 (S344), and further, the model code stored in the model code / version storage area 143 of the flash memory 14 1431 and program version information 1432 are read (S345).

  Next, the inquiry response unit 1311 compares the model code and program version information included in the update command with the model code 1431 and program version information 1432 read from the model code / version storage area 143 (S346), and the model. If the codes match and the program version is updated, a response command including response version information is generated as shown in FIG. In other cases, a response command is generated with model code / program version = 0 (S347).

  Thereafter, the inquiry response unit 1311 transmits the generated response command to the management device 2 via the communication control device 16 (S348).

  Next, in the management device 2, the update inquiry unit 273 receives the response command via the communication control device 26 (S349), and analyzes the received response command.

  If the model code in the response command is 0, it is determined that updating is not necessary, and the process is terminated. If it is other than 0, the processing is continued (S350).

  If the model code is not 0 in step S350, that is, if response version information is included in the response command, the management device 2 performs transmission correction table generation processing in step S351.

  Hereinafter, the transmission correction table generation process will be described with reference to FIG.

  First, the storage information generation unit 274 stores the response version information included in the response command received by the update inquiry unit 273 in the response version related information storage area 281 of the RAM (2) and sets it as the response version information 2812 ( S401).

  Also, the subprogram DB 23 is searched based on the model code included in the response command and the display of the version for each subprogram name indicated in the response version information, and the version of the subprogram indicated in the response version information is retrieved. Is stored in the response version related information storage area 281 of the RAM (2) to be the response version subprogram 2811 (S402).

  Next, the storage information generation unit 274 reads the latest version information corresponding to the model code included in the response command from the latest version information DB 24, stores it in the latest version related information storage area 291 of the RAM (3), and stores the latest version. Information 2912 (FIG. 9) is set (S403).

  Also, the subprogram DB 23 is searched based on the model code included in the response command and the display of the version for each subprogram name indicated in the latest version information, and the version of the subprogram indicated in the latest version information is displayed. Is stored in the latest version related information storage area 291 of the RAM (3) to be the latest version subprogram 2911 (S404).

  Next, the storage information generation unit 274 generates transmission original subprogram storage information (S405).

  Specifically, the storage information generation unit 274 sequentially reads the entry of the latest version information 2912 and extracts the entry of the subprogram version 1.0 (original subprogram). Then, the subprogram version field of the latest version information is deleted and written in the transmission data storage area 282 as transmission original subprogram storage information 2821 (FIG. 12).

  When processing is completed for all entries, an entry including the end code is written in the transmission original subprogram storage information.

  At this time, the data size information generation unit 277 holds a value obtained by subtracting the transmission original subprogram storage information from the address of (entry including the end code + 1 entry).

  In the case of the latest version information as shown in FIG. 9, the entries of the subprograms a and d are written, and the transmission original subprogram storage information shown in FIG. 12 is generated.

  Next, the storage information generation unit 274 generates transmission update subprogram storage information (S406).

  Specifically, the storage information generation unit 274 sequentially reads the entries of the latest version information 2912 and extracts entries other than the subprogram version 1.0 (update subprogram). Then, the subprogram version field of the latest version information is deleted and written in the transmission data storage area 282 as transmission update subprogram storage information 2822 (FIG. 13).

  When processing is completed for all entries, an entry including an end code is written in the transmission update subprogram storage information.

  At this time, the data size information generation unit 277 holds a value obtained by subtracting the transmission update subprogram storage information from the address (entry including the end code + 1 entry).

  In the case of the latest version information as shown in FIG. 9, the entries of the subprograms b, c and e are written, and the transmission original subprogram storage information shown in FIG. 13 is generated.

  Next, the branch destination adjustment information generation unit 275 generates transmission branch destination adjustment information (S407).

  Specifically, the branch destination adjustment information generation unit 275 sequentially compares the entry of the latest version information 2912 and the entry of the response version information 2812. When both subprogram versions match, the response version subprogram 2811 and the latest version subprogram 2911 corresponding to each other are compared to extract a difference. If there is a difference, the name of the compared subprogram, the offset address where the difference occurred, and the value of the latest version subprogram at the offset address are written in the transmission data storage area 282 as transmission branch destination adjustment information 2823 (FIG. 14). In other cases, the writing process is not performed.

  When processing is completed for all entries, an entry including an end code is written in the transmission branch destination adjustment information.

  At this time, the data size information generation unit 277 holds a value obtained by subtracting the transmission original subprogram storage information from the address of (entry including the end code + 1 entry).

  In the case of the latest version information shown in FIG. 9 and the response version information shown in FIG. 11, the transmission branch destination adjustment information shown in FIG. 14 is generated.

  Next, the data size information generation unit 277 generates transmission data size information (S408).

  Specifically, a transmission original subprogram storage information entry indicating the data size of transmission original subprogram storage information, a transmission update subprogram storage information entry indicating the data size of transmission update subprogram storage information, and transmission branch destination adjustment information Transmission data size information including a transmission branch destination adjustment information entry indicating the data size of the transmission data, a transmission subprogram entry indicating the data size of the transmission subprogram, and a transmission data size information entry indicating the data size of the transmission data size information itself. Generate.

  The transmission original subprogram storage information entry is a value held by the data size information generation unit 277 in S405.

  The transmission update subprogram storage information entry is a value held by the data size information generation unit 277 in S406.

  The transmission branch destination adjustment information entry is a value held by the data size information generation unit 277 in S407.

  The transmission subprogram entry sequentially compares the latest version information entry and the response version information entry. If the subprogram versions do not match, an entry indicating the compared subprogram name and the size of the latest version of the subprogram is created.

  The entry of the transmission data size information is a value obtained by subtracting the head address of the transmission data size information from the address of (entry that has written the last transmission subprogram entry + 2 entries). In addition, after the transmission data size information entry is written, an entry including the end code is written.

  When the transmission correction table generation process (S351) is completed as described above, the transmission correction table 2820 is stored in the transmission data storage area 282.

  Thereafter, the transmission subprogram specifying unit 276 specifies the transmission subprogram (S352).

  Specifically, the transmission subprogram specifying unit 276 compares the version field of the latest version information 2912 and the version field of the response version information 2812 for each subprogram. The subprograms that do not match are update subprograms that the information processing apparatus 1 does not own (not receive), and the transmission subprogram specifying unit 276 obtains the latest version subprogram 2911 from the latest version related information storage area 291 for the subprogram. The read transmission data storage area 282 is stored as a transmission subprogram 2825.

  In the case of the latest version information shown in FIG. 9 and the response version information shown in FIG. 11, since the versions of the subprograms b and e do not match, the latest version subprogram b and the latest version subprogram as shown in FIG. e is stored in the transmission data storage area 282.

  As a result, all the transmission data is stored in the transmission data storage area 282.

  Thereafter, the transmission data transmission processing unit 278 transmits the transmission data stored in the transmission data storage area 282 to the information processing apparatus 1 via the communication control apparatus 26 (S353).

  Next, in the information processing apparatus 1, the transmission data reception processing unit 1312 receives transmission data from the management apparatus 2 via the communication control apparatus 16 (S 354), and the received transmission data is stored in the reception data storage area 153 of the RAM 15. Stored and used as received data (S355).

  At this time, the received data storage area 153 does not store the duplicate sector storage information 1531, and the received data size information 1532 other than the duplicate sector storage information 1531, the received original subprogram storage information 1533, the received update subprogram Storage information 1534 and reception branch destination adjustment information 1535 are stored in the reception data storage area 153.

  Next, the information processing apparatus 1 performs a new correction table generation process in step S355.

  Hereinafter, the new correction table generation process will be described with reference to FIG.

  First, the subprogram storage area designating unit 1313 generates duplicate sector storage information (S411).

  Specifically, the subprogram storage area designating unit 1313 copies the sector storage information 1414 stored in the correction table storage area 141 of the flash memory 14 to the reception data storage area 153 of the RAM 15 as the duplicate sector storage information 1531. The sector storage information 1414 and the duplicate sector storage information 1531 are information created at the time of the previous transmission data reception, and are not the sector storage information corresponding to the reception data received this time. Examples of the sector storage information 1414 and the duplicate sector storage information 1531 are shown in FIG.

  Next, the subprogram storage area designating unit 1313 generates correction information RAM storage information (S412).

  Specifically, the subprogram storage area designating unit 1313 reads one entry of the received data size information 1532 and adds the reference address. The calculated value is written in the correction information RAM storage information 152 as a RAM storage address. When processing is completed for predetermined entries (transmission original subprogram storage information entry, transmission update subprogram storage information entry, transmission branch destination adjustment information entry, transmission subprogram entry) in reception data size information 1532, sector save areas 0, 1 And the entry including the end code are written (FIG. 16).

  Next, the subprogram storage area designating unit 1313 generates a new correction table (S413).

Specifically, the subprogram storage area specifying unit 1313 writes the following information in the new correction table storage area 154 by acquiring the RAM storage address and size from the correction information RAM storage information.
1) Received original subprogram storage information 1533 → New original subprogram storage information 1542
2) Received update subprogram storage information 1534 → new update subprogram storage information 1543
3) Reception branch destination adjustment information 1535 → new branch destination adjustment information 1544
That is, the new correction table generation is generated by the following procedure.
(1) The subprogram storage area designating unit reads the new modification table sector entry of the modification information RAM storage information in order to set the address of the area for storing the new modification table to be generated. A fixed value is added to the read address, and the start address for storing the updated subprogram storage information / branch destination adjustment information in the new correction table is also calculated / saved.
(2) The subprogram storage area designating unit reads the original subprogram storage information entry of the correction information RAM storage information in order to set the start address and size in which the original subprogram storage information is stored.
(3) The subprogram storage area designating unit copies to the address set in (1) by the size set from the start address set in (2).
(4) The subprogram storage area designating unit reads the update subprogram storage information entry in order to set the start address and size in which the updated subprogram storage information is stored.
(5) The subprogram storage area designating unit copies to the address of the updated subprogram storage information in the new modification table set in (1) by the size set from the start address set in (4).
(6) The subprogram storage area designating unit reads the branch destination adjustment information entry. Set the start address and size where branch destination adjustment information is stored.
(7) The subprogram storage area designating part copies from the set start address to the address of the branch destination adjustment information in the new correction table set in (1) by the set size.

  Next, the subprogram storage area designating unit 1313 generates new sector storage information (S414).

  Specifically, the subprogram storage area designating unit 1313 writes the sector storage information start address at the last address of the new correction table storage area 154. Subsequently, new sector storage information 1541 is generated from the duplicate sector storage information 1531 (FIG. 15) and the received data size information 1532 and stored in the new correction table storage area 154.

  As a procedure for generating new sector storage information, first, copy sector storage information is compared with received data size information. If the subprogram names match, it is necessary to change the duplicate sector storage information (size field). Replace the size record of the duplicate sector storage information with the size record of the received data size information. It is adjusted with the remaining sector capacity. When division is necessary, division processing is performed and the new sector storage information is stored in the correction table storage area. If the subprogram names do not match, the entry of the duplicate sector storage information is stored in the correction table storage area as new sector storage information.

  An example of the new sector storage information 1541 is shown in FIG.

  As shown in FIG. 17, the new sector storage information 1541 is information indicating the contents of sector data in each sector (stored contents of the updated subprogram) for each sector of the flash memory. By generating new sector storage information 1541, the storage contents (sector data) of the update subprogram are designated for each sector of the flash memory.

  When the new correction table generation processing (S355) is completed as described above, the information processing apparatus 1 next performs flash memory rewriting processing (S356).

  Hereinafter, the flash memory rewriting process will be described with reference to FIG.

In the flash memory rewriting process (S356), the subprogram write processing unit 1314 rewrites the flash memory sector according to the following procedure.
1) A new sector storage information entry is read (S421).
2) The data in the flash memory sector is saved (S422).
3) The flash memory sector is erased (S423).
4) It is determined whether to replace the subprogram (S424).

In the determination of S424, the subprogram name is extracted from the read entry of the new sector storage information, compared with the subprogram name of the received data size information, and if both match, replacement is performed.
5) If Yes in step S424, the received subprogram is copied to the flash memory (S425).
6) If No in step S424, the saved data is copied to the flash memory (S426).
7) Then, it is determined whether or not the subprogram is contained in the designated sector (S427).
8) If No in step S427, the process returns to step S421 and the process is repeated.
9) If Yes in step S427, it is determined whether another subprogram is in the same sector (S428).
10) If Yes in step S428, return to step S424 and repeat the process.
11) If No in step S428, return to step S421 and repeat the process.

  The procedure for generating the sector data for the reception subprogram is to determine whether to use the subprogram stored in the flash memory or the reception subprogram by comparing the received data size information with the new sector storage information. To do.

  When writing a subprogram stored in the flash memory, copy the size indicated in the new sector storage information from the area saved before erasing the sector to the flash memory. is not).

  When writing the reception subprogram, the size indicated in the new sector storage information is copied from the reception data storage area to the flash memory (data is not generated).

  The flash memory must be erased before rewriting.

  The process of storing the new original subprogram storage information, the newly updated subprogram storage information, and the new branch destination adjustment information in the flash memory is performed before the flash memory rewriting of the subprogram.

  The new original subprogram storage information, the new updated subprogram storage information, the new branch destination adjustment information, and the new sector storage information are a new correction table. The correction table is assigned to a fixed sector as a correction table sector in the flash memory. All the data in the new correction table storage area on the RAM is stored in the correction table sector.

  As described above, when the flash memory rewriting process (S356) ends, the program version information generation unit 1316 generates program version information for the updated subprogram and stores it in the model code / version storage area 143 (S357).

  The procedure for generating the program version information is as follows.

  The update command received from the management apparatus is stored on the RAM of the information processing apparatus 1. After the subprogram is written in the flash memory, the program version information generation unit extracts the model code / program version information from the update command stored in the RAM and writes it in the fixed address of the flash memory.

  Finally, the reset instruction unit 1315 instructs 12 to make the reset signal significant (S358).

  As described above, the update subprogram in the update subprogram storage area 142 is rewritten to a new update subprogram. Thereafter, when the information processing apparatus 1 executes the program, the program is executed according to the procedure described in the first embodiment. Execution can be performed.

  As described above, according to the present embodiment, since only the update subprogram that needs to be rewritten in the information processing apparatus is transmitted, the communication time between the management apparatus and the information processing apparatus can be shortened.

  In addition, since the transmission update subprogram storage information indicating the flash memory storage area of the update subprogram is transmitted from the management apparatus to the information processing apparatus, the flash memory of the information processing apparatus can be written without generating or sending a rewrite program. It can be changed.

Embodiment 3 FIG.
In the second embodiment, sector data (sector data such as original subprogram storage information, updated subprogram information, and subprograms) to be written in the flash memory of the information processing apparatus 1 is generated by the information processing apparatus 1.

  Incidentally, the management device 2 often has higher performance than the information processing device 1. Therefore, a part of the processing can be transferred to the management apparatus 2 so that the processing speed of the entire system can be increased.

  Therefore, in the present embodiment, an example will be described in which the management apparatus 2 generates sector data to be written in the flash memory to increase the update processing speed.

  First, the operation of the information processing apparatus 1 and the management apparatus 2 according to the present embodiment will be outlined.

  The management device 2 generates transmission original subprogram storage information, transmission update subprogram storage information, and transmission branch destination adjustment information according to the procedure shown in the second embodiment.

  Thereafter, the management device 2 generates predetermined transmission sector data storage information, and specifies a transmission subprogram to be transmitted to the information processing device 1 based on the generated transmission sector data storage information.

  The transmission original subprogram storage information, transmission update subprogram storage information, and transmission branch destination adjustment information are divided into sectors of the flash memory of the information processing apparatus 1 as transmission correction table sector data. The transmission correction table sector data, the transmission sector data, and the transmission sector data storage information are transmitted to the information processing apparatus.

  The information processing apparatus 1 replaces the sector data stored in the flash memory and the correction table sector data with the transmission correction table sector data and the transmission sector data based on the received transmission sector data storage information.

  This embodiment relates to sector data and sector data storage information. The transmission original subprogram storage information, transmission update subprogram storage information, and transmission branch destination adjustment information that are the basis thereof are the same as those in the second embodiment. Therefore, the procedure up to the generation of the transmission branch destination adjustment information is performed in the same manner as in the second embodiment.

  FIG. 22 shows a configuration of the management apparatus 2 according to the present embodiment.

  In FIG. 22, the elements 21 to 26 are the same as those shown in the second embodiment, but the model / information processing apparatus information stored in the model / information processing apparatus DB 25 includes information processing for each model. In addition to information indicating the communication ID (for example, IP address) of the apparatus, information on the sector size of the flash memory mounted on the information processing apparatus for each model is also included.

  In the RAM (1) 27, the transmission subprogram specifying unit 276 shown in the second embodiment is excluded and a sector data storage information generation unit 279 and a sector data generation unit 280 are added. Elements other than the sector data storage information generation unit 279 and the sector data generation unit 280 are the same as those described in the second embodiment.

  The sector data storage information generation unit 279 generates transmission sector data storage information 2826 and stores it in the transmission data storage area 282 of the RAM (2).

  The sector data generation unit 280 stores transmission original subprogram storage information 2821, transmission update subprogram storage information 2822, and transmission branch destination adjustment information 2823 stored in the transmission data storage area 282 of the RAM (2) of the information processing apparatus 1. Sector data is generated by dividing the flash memory in units of sectors, and these sector data are combined and stored in the transmission data storage area 282 as transmission correction table sector data 2828. Further, the update subprogram to be transmitted to the information processing apparatus 1 is specified based on the transmission sector data storage information 2826, and the specified update subprogram is divided into sector data to be sector data, and the transmission sector is stored in the transmission data storage area 282. Stored as data 2829. The sector data generation unit 280 identifies the sector size of the flash memory of the information processing apparatus 1 with reference to the model / information processing apparatus information stored in the model / information processing apparatus DB 25, and generates sector data. .

  The RAM (2) 28 stores transmission sector data storage information 2826, a transmission sector data group 2827 including transmission correction table sector data 2828 and transmission sector data 2829 in the transmission data storage area 282.

  The RAM (3) 29 stores the latest version sector data storage information 2921 and the response version sector data storage information 2922 in the sector storage information storage area 292.

  Next, FIG. 23 shows a configuration of the information processing apparatus 1 according to the present embodiment.

  The ROM 13 has a configuration in which the subprogram storage area designation unit 1313 is excluded from the configuration of the second embodiment.

  Although not shown in FIG. 23, the information processing apparatus 1 according to the present embodiment also has the elements 131 to 136 shown in FIG. 1 in the ROM 13. The operation shown in the first embodiment is performed using each element 136.

  In the flash memory 14, a sector data storage area exists instead of the correction table storage area 141 and the update subprogram storage area 142 described in the second embodiment.

  The sector data storage area includes correction table sector data 1461 and sector data 1462. The correction table sector data 1461 is sector data of the original subprogram storage information 1411, the updated subprogram storage information 1412, and the branch destination adjustment information 1413 described in the second embodiment. The sector data 1462 is sector data of the update subprogram shown in the second embodiment.

  Note that the information (correction table sector data 1461 and sector data 1462) stored in the sector data storage area 146 of FIG. 22 is information before the processing of FIG. 24 described later, that is, information at the time of the previous update. It is.

  In the RAM 15, a reception sector data group 1562 including reception sector data storage information 1561, reception correction table sector data 1563 and reception sector data 1564 is stored in the reception data storage area 156.

  The reception sector data storage information 1561 and the reception sector data group 1562 are the transmission sector data storage information 2826 and the transmission sector data group 2827 transmitted from the management device 2, and the transmission data reception processing unit 1312 is transmitted via the communication control device 16. Received by the transmission data reception processing unit 1312 and stored in the reception data storage area 156.

  Next, operations of the information processing apparatus 1 and the management apparatus 2 according to the present embodiment will be described with reference to FIG.

  Steps S361 to S371 in FIG. 24 are the same as S341 to S351 shown in FIG.

  After the processing up to S371 is completed, the management apparatus 2 generates a transmission sector data group 2827 and transmission sector data storage information 2826 according to the following procedure (S372).

  First, in order to generate the transmission sector data storage information 2826, the latest version sector data storage information 2921 and the response version sector data storage information 2922 are generated. The sector data storage information generation unit 279 generates the latest version sector data storage information 2921 by extracting and rearranging necessary data from the latest version information 2912 and then dividing the data by sector size of the flash memory. Similarly, response version sector data storage information 2922 is generated from response version information 2812.

Specifically, the response version sector data storage information is generated by the following procedure.
(1) Extract subprogram name, program size, and program version fields from entries other than version 1.0.
(2) Rearrange in order of older version.
(3) If the program size is larger than the sector size, the entry is divided and a sector number is added.

The latest version sector data storage information is generated by the following procedure.
(1) Extract entries other than version 1.0 from sector number, subprogram name, program size, and program version fields.
(2) The sub-programs with entries in the response version sector data storage information are matched in order, and if there is no entry, they are rearranged in order of oldest version.
(3) If the program size is larger than the sector size, the entry is divided and a sector number is added.

  An example of the latest version sector data storage information 2921 according to the present embodiment is shown in FIG. 25, and an example of the response version sector data storage information 2922 according to the present embodiment is shown in FIG.

  Further, the sector data storage information generation unit 279 generates the transmission sector data storage information 2826 by comparing the latest version sector data storage information 2921 and the response version sector data storage information 2922 and extracting the subprogram versions that do not match. And stored in the transmission data storage area 282.

Specifically, the transmission sector data storage information is generated by the following procedure.
(1) The latest version sector data storage information is compared with the response version sector storage information.
(2) Extract the latest version sector data storage information entry whose subprogram name, program version, and program size do not match the response version sector storage information.
(3) Store the extracted entry as transmission sector data storage information.

  FIG. 27 shows an example of transmission sector data storage information 2826.

  In FIG. 27, as a result of comparing the latest version sector data storage information of FIG. 25 with the response version sector data storage information of FIG. 26, the subprogram versions do not match in subprograms b and e. The records of the subprograms b and e of the sector data storage information are copied, the subprogram version field is deleted, and the latest flag field is set to generate transmission sector data storage information.

  That is, in this case, if a version other than version 1.0 is extracted from the response version subprogram storage information, it becomes an entry for subprograms c and e. Similarly, a version other than version 1.0 is extracted from the latest version subprogram storage information. Then, it becomes an entry of subprograms b, c, and e. When both entries are compared, since the subprogram c has not changed from that already stored in the information processing apparatus 1, it is determined that rewriting is unnecessary. Accordingly, entries of subprograms e and b are stored in the transmission sector data.

  Next, the sector data generation unit 280 generates transmission sector data 2829 by the following procedure.

  The sector data generation unit 280 divides transmission original subprogram storage information 2821, transmission update subprogram storage information 2822, and transmission branch destination adjustment information 2823 into sector data, and combines these sector data for transmission. Correction table sector data 2828 is generated and stored in the transmission data storage area 282. At this time, the sector data generation unit 280 specifies the sector size of the flash memory of the information processing apparatus 1 with reference to the model / information processing apparatus information stored in the model / information processing apparatus DB 25, and transmits the transmission correction table sector. Generate data.

  Further, the sector data generation unit 280 reads the transmission sector data storage information 2826 and stores the subprogram in which the entry exists in the transmission data storage area 282 as the latest version subprogram 2911 as the transmission sector data 2829.

  Then, the transmission data transmission processing unit 278 transmits the transmission sector data storage information 2826 and the transmission sector data group 2827 to the information processing apparatus 1 via the communication control device 16 based on the transmission sector storage information (S373).

  Next, the information processing apparatus 1 performs transmission sector data reception processing (S374) and flash memory sector data rewrite processing (S375) in the following procedure.

  The transmission data reception processing unit 1312 receives the transmission sector data group and the transmission sector data storage information via the communication control device 16 and stores them as reception sector data storage information 1561 and reception sector data group 1562 in the reception data storage area 156. .

  The subprogram write processing unit 1314 replaces the sector data of the flash memory indicated by the received sector data storage information 1561 with the corresponding received sector data. Specifically, the reception correction table sector data 1563 is replaced with the correction table sector data 1461. Also, the received sector data 1564 (sector data 11, sector data 12, sector data 13) is replaced with sector data 1462 (sector data 10, sector data 11).

  As described above, the correction table sector data 1461 and the sector data 1462 in the sector data storage area are replaced with the reception correction table sector data 1563 and the reception sector data 1564 received from the management apparatus 2.

  Next, the program version information generation unit 1316 generates program version information for the updated sector data and stores it in the model code / version storage area 143 as in the second embodiment (S376).

  Finally, the reset instruction unit 1315 instructs the reset means 12 to make the reset signal significant (S377).

  Thereafter, when the information processing apparatus 1 executes the program, the program can be executed according to the procedure described in the first embodiment.

  As described above, according to the present embodiment, the management table converts the correction table and the update subprogram into sector data, generates sector data storage information, and transmits the sector data and sector data storage information to the information processing device. Therefore, the flash memory rewriting process in the information processing apparatus can be speeded up.

2 is a diagram illustrating a configuration example of an information processing device according to Embodiment 1. FIG. The figure which shows the example of original subprogram storage information. The figure which shows the example of update subprogram storage information. The figure which shows the example of branch destination adjustment information. FIG. 3 illustrates an operation example of the information processing apparatus according to the first embodiment. FIG. 4 is a diagram illustrating an example of a system configuration according to a second embodiment. FIG. 4 is a diagram illustrating a configuration example of a management device according to a second embodiment. FIG. 3 illustrates a configuration example of an information processing apparatus according to a second embodiment. The figure which shows the example of the latest version information. The figure which shows the example of an update command. The figure which shows the example of a response command. The figure which shows the example of transmission original subprogram storage information. The figure which shows the example of transmission update subprogram storage information. The figure which shows the example of transmission branch destination adjustment information. The figure which shows the example of sector storage information. The figure which shows the example of correction information RAM storage information. The figure which shows the example of new sector storage information. FIG. 6 is a diagram illustrating an operation example of an information processing apparatus and a management apparatus according to Embodiment 2. The figure which shows the content of the transmission correction table production | generation process. The figure which shows the content of the new correction table production | generation process. The figure which shows the content of flash memory rewriting process. FIG. 9 is a diagram illustrating a configuration example of a management device according to a third embodiment. FIG. 10 illustrates a configuration example of an information device according to a third embodiment. FIG. 10 is a diagram illustrating an operation example of an information processing apparatus and a management apparatus according to Embodiment 3. The figure which shows the example of the newest version sector data storage information. The figure which shows the example of response version sector data storage information. The figure which shows the example of transmission sector data storage information.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Information processing apparatus, 2 Management apparatus, 11 CPU, 12 Reset means, 13
ROM, 14 flash memory, 15 RAM, 16 communication control device, 21
CPU, 22 ROM, 23 subprogram DB, 24 latest version information DB, 25 model / information processing device DB, 26 communication control device, 27 RAM (1), 28 RAM (2), 29 RAM (3), 131 H / W initialization unit, 132 original subprogram transfer unit, 133 update subprogram transfer unit, 134 subprogram adjustment unit, 135 program execution unit, 136 original subprogram storage area, 141 correction table storage area, 142 update subprogram storage area, 143 Model code / version storage area, 146 Sector data storage area, 151 Execution program storage area, 152 Correction information RAM storage information, 153 Receive data storage area, 154 New correction table storage area, 155 Sector save area, 156 Receive data storage area 2 1 subprogram registration unit, 272 latest version information generation unit, 273 update inquiry unit, 274 storage information generation unit, 275 branch destination adjustment information generation unit, 276 transmission subprogram identification unit, 277 data size information generation unit, 278 transmission data transmission Processing unit, 279 Sector data storage information generation unit, 280 Sector data generation unit, 281 Response version related information storage region, 282 Transmission data storage region, 291 Latest version related information storage region, 1311 Query response unit, 1312 Transmission data reception processing unit , 1313 Subprogram storage area designation unit, 1314 Subprogram write processing unit, 1315 Reset instruction unit, 1316 Program version information generation unit, 1411 Original subprogram storage information, 1412 Update subprogram storage information, 141 Branch destination adjustment information, 1414 Sector storage information, 1431 Model code, 1432 Program version information, 1531 Replication sector storage information, 1532 Received data size information, 1533 Received original subprogram storage information, 1534 Received update subprogram storage information, 1535 Receive branch Destination adjustment information, 1536 reception subprogram, 1541 new sector storage information, 1542 new original subprogram storage information, 1543 new update subprogram storage information, 1544 new branch destination adjustment information, 1561 reception sector data storage information, 1562 reception sector data group , 1563 reception correction table sector data, 1564 reception sector data, 2811 response version subprogram, 2812 response version information, 2820 transmission correction table, 282 1 Transmission original subprogram storage information, 2822 Transmission update subprogram storage information, 2823 Transmission branch destination adjustment information, 2825 Transmission subprogram, 2826 Transmission sector data storage information, 2827 Transmission sector data group, 2911 Latest version subprogram, 2912 Latest version Information, 2921 latest version sector data storage information, 2922 response version sector data storage information.

Claims (12)

An information processing apparatus capable of updating a program in units of subprograms by combining a plurality of original subprograms constituting a predetermined original program and an update subprogram for updating the original program,
A main storage device;
A read-only original subprogram storage for storing a plurality of original subprograms;
An update subprogram storage for storing at least one update subprogram;
An original subprogram storage information storage unit for storing original subprogram storage information indicating an execution target original subprogram that is an original subprogram to be executed together with the update subprogram;
An update subprogram storage information storage unit for storing update subprogram storage information indicating an update subprogram stored in the update subprogram storage unit;
Branch destination adjustment information storage unit for specifying a subprogram including a branch process and storing branch destination adjustment information indicating data for adjusting a change of a branch destination caused by the update of the subprogram for the subprogram including the branch process And
On the basis of the original subprogram stored information, the execution target original subprogram then transferred to the main memory from the original sub-program storage unit, based on the update sub-program storage information, the update subroutine stores the update subprogram A subprogram transfer unit for transferring from the unit to the main storage device;
The subprogram for adjusting the branch destination in the branch processing based on the branch destination adjustment information for the subprogram including the branch processing among the execution target original subprogram and the update subprogram transferred to the main memory by the subprogram transfer unit. A program adjustment section;
An information processing apparatus comprising: a program execution unit that executes an execution target original subprogram and an update subprogram after a branch destination in a branch process is adjusted by the subprogram adjustment unit. The original subprogram storage information storage unit is
For each run the object original subprogram, storing the original subprogram stored information indicating the storage area in the main memory and the storage area in the original sub-program storage unit,
The updated subprogram storage information storage unit
For each update subprogram, storing the update sub-program storing information indicating a storage area in the main memory and the storage area in the renewed sub-program storage unit,
The subprogram transfer unit
In accordance with the foregoing original subprogram storing information, each of the execution target original subprogram transferred to the respective storage area in the main memory from each storage area in the original sub-program storage unit, in accordance with the updated sub-program storage information, updates 2. The information processing apparatus according to claim 1, wherein each of the subprograms is transferred from a respective storage area in the updated subprogram storage unit to a respective storage area in the main storage device. The branch destination adjustment information storage unit
For subprograms including branch processing, store the branch destination adjustment information indicating the offset address to be adjusted at the branch destination and the data to be overwritten on the offset address for branch destination adjustment ,
The subprogram adjustment unit
For subprograms including branch processing, and wherein the overwrite data shown in branch target adjustment information to the offset address indicated in the branch target adjustment information to adjust the branch target of the branch processing The information processing apparatus according to claim 1 . The information processing apparatus includes:
Can communicate with a predetermined management device,
In a predetermined case, a new update subprogram, new original subprogram storage information, new update subprogram storage information, and new branch destination adjustment information are received from the management device,
The update subprogram storage unit
Storing the new update subprogram;
The original subprogram storage information storage unit is
Storing the new original subprogram storage information;
The updated subprogram storage information storage unit
Storing the new updated subprogram storage information;
The branch destination adjustment information storage unit
The information processing apparatus according to claim 1, wherein the new branch destination adjustment information is stored. The information processing apparatus includes:
The update subprogram storage unit includes a flash memory divided into sectors, and manages sector storage information indicating in which sector the update program stored in the update subprogram storage unit is stored And
In addition to the new update subprogram, the new original subprogram storage information, the new update subprogram storage information, and the new branch destination adjustment information, at least the data size of the new update subprogram is transmitted from the management device. Receive the indicated data size information,
The information processing apparatus further includes:
A subprogram storage area designating unit for designating a sector in the updated subprogram storage unit for storing the new updated subprogram based on the data size information and the sector storage information;
5. The information processing apparatus according to claim 4, further comprising: a subprogram write processing unit that writes the new updated subprogram in a sector designated by the subprogram storage area designating unit. The information processing apparatus includes:
The update subprogram storage unit includes a flash memory divided into sectors ,
The information processing apparatus includes:
Wherein the management unit, receives the sector data dividing the new update subprograms sector units of the update sub-program storage unit, and the update sub-program storage unit sector storing information indicating the sector data to be stored in each sector of And
5. The information processing apparatus according to claim 4 , wherein the received sector data is written in a corresponding sector of the update subprogram storage unit according to the received sector storage information. A main storage device, a read-only original subprogram storage unit that stores a plurality of original subprograms that are subprograms constituting the original version and that constitute the first version, and a subprogram for updating the original program An update subprogram storage unit capable of storing an update subprogram that is a version after the second version,
It is possible to receive an update subprogram under a predetermined condition, and each time an update subprogram is received, the received update subprogram is stored in the update subprogram storage unit,
In a predetermined case, each sub-program of a predetermined number of subprograms stored in at least one of the original subprogram storage unit and the update subprogram storage unit based on the storage status of the update subprogram in the update subprogram storage unit It is possible to determine the version of the program, generate version information indicating the determination result, and send the generated version information.
When executing the program, it is possible to communicate with an information processing apparatus that stores a predetermined number of subprograms in the main storage device from at least one of the original subprogram storage unit and the updated subprogram storage unit, and executes the program,
A management device for managing the information processing device,
A subprogram storage unit that stores the original subprogram held by the information processing device, and stores the generated update subprogram each time an update subprogram is generated inside the management device or outside the management device;
Information that is updated each time the subprogram storage unit stores an updated subprogram, and indicates a subprogram of the latest version of each subprogram for a predetermined number of subprograms stored in the subprogram storage unit A latest version information storage unit that stores latest version information that specifies a storage area at the time of storage in the main storage device of the information processing apparatus for each subprogram,
Each time the subprogram storage unit stores an update subprogram, the information processing device transmits transmission necessity inquiry information for inquiring whether the update subprogram needs to be transmitted to the information processing device. A communication processing unit that receives version information from the information processing device as a response to the transmission necessity inquiry information when requesting transmission of an update subprogram in the device;
When the communication processing unit receives version information from the information processing apparatus, the latest version information stored in the latest version information storage unit is analyzed when the communication processing unit receives version information, and the latest version When at least one subprogram whose original subprogram is indicated as the latest version of the subprogram in the information is detected, it instructs each detected subprogram to execute the original subprogram and execute the program. An original subprogram that generates original subprogram storage information that instructs to store the original subprogram in the storage area of the main storage device specified by the latest version information for each detected subprogram And paid information generating unit,
When the communication processing unit receives version information from the information processing apparatus, the latest version information stored in the latest version information storage unit is analyzed when the communication processing unit receives version information, and the latest version When at least one subprogram whose updated subprogram is indicated as the latest version of the subprogram in the information is detected, the detected subprogram is instructed to be the execution target for each detected subprogram, and the program is executed An updated subprogram storage information generating unit for generating updated subprogram storage information for instructing to store the updated subprogram in the storage area of the main storage device specified by the latest version information for each detected subprogram;
When the communication processing unit receives version information from the information processing apparatus, the latest version information stored in the latest version information storage unit and the communication processing unit when the communication processing unit receives version information. The information processing apparatus has an update subprogram specifying unit for specifying an update subprogram that has not been received,
The communication processing unit
A management apparatus that transmits original subprogram storage information, update subprogram storage information, and an update subprogram specified by the update subprogram specifying unit to the information processing apparatus. The latest version information storage unit includes:
For the subprogram in which the latest version of the subprogram is an update subprogram, the latest version information that specifies the storage area in the update subprogram storage unit of the information processing apparatus is stored,
The update subprogram storage information generation unit
As a result of analyzing the latest version information, if at least one subprogram whose updated subprogram is indicated as the latest version subprogram in the latest version information is detected, the latest version information is specified for each detected subprogram. The management apparatus according to claim 7 , wherein the management apparatus generates update subprogram storage information that instructs to store an update subprogram in a storage area of the update subprogram storage unit. The management device further includes:
To specify a subprogram including a branch process among subprograms executed by the information processing apparatus, and to adjust a change of a branch destination caused by the update of the subprogram in the information processing apparatus for the subprogram including the branch process An adjustment information generation unit that generates branch destination adjustment information indicating the data of
The communication processing unit
The management apparatus according to claim 7 , wherein the branch destination adjustment information generated by the adjustment information generation unit is transmitted to the information processing apparatus. Before Symbol adjustment information generating unit,
For the subprogram including the branch process, the branch destination adjustment information indicating the offset address to be adjusted at the branch destination and the data to be overwritten on the offset address for adjustment of the branch destination in the information processing apparatus is generated. The management apparatus according to claim 9 . The management device further includes:
For the original subprogram storage information, the update subprogram storage information, the update subprogram specified by the update subprogram specifying unit, and the adjustment information, a data size information generation unit that generates data size information indicating each data size is provided. The management apparatus according to claim 9 . The management device
Manage an information processing device with flash memory as an update subprogram storage,
The management device further includes:
A sector data generation unit that divides an update subprogram into sectors of the flash memory of the information processing apparatus to generate sector data;
A sector storage information generating unit that generates sector storage information indicating sector data to be stored in each sector of the flash memory of the information processing apparatus,
The communication processing unit
8. The management apparatus according to claim 7 , wherein sector data generated by the sector data generation unit and sector storage information generated by the sector storage information generation unit are transmitted to the information processing apparatus.

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