JPS6332644A - Data writing device - Google Patents

Abstract

PURPOSE:To minimize an area where the data supplied from an external recording part is once recorded by storing the address of a writing area information memory where the information on a data writing area of each data processor is stored. CONSTITUTION:A bus line is connected directly to a data memory part 3 of a data processor 2 when a connection terminal 1 is connected to the processor 2. A data writing device writes the data recorded to an external recording part 4 to the part 3. A device type-based address memory 6 is added to store the address of the part 3 including a writing area information memory 5 for each device type number of each processor 2 together with a bucket memory 7 storing the data on the part 4, a device type selection key 8 and a writing command key 9. A number reading means 10 reads an address corresponding to the device type number designated by the key 8 out of the memory 6 in response to the action of the key 9. Then a data writing means 11 writes the data stored in the memory 7 to the part 3 according to the data writing area information stored in the memory 5 designated by the memory 6.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a floppy disk drive device (FDD).
The present invention relates to an improvement in a data writing device that writes (loads) setting data and program data recorded in an external storage device such as the above into a data storage device of a data processing device.

[Prior Art] For example, electronic cash registers built into POS (point of sale) systems used in large-scale retail stores include various programs, department codes, and unit prices for operating the electronic cash register. Rather than writing setting data such as ROM to non-volatile memory such as ROM in advance, it is now written to volatile memory such as RAM using a data writing device when shipped from the factory or when installed at the user's sales floor. There are also. In this way, by writing various programs and setting data later, it is possible to satisfy various demands of each user.

Generally, in a data writing device that writes such data, the data writing device itself has a CPU, ROM, and R.
A micro combicoater including an AM and a bus line is built in, and when connected to an electronic cash register as a data processing device through a connecting terminal, the data in the electronic cash register is formed in a RAM or the like to be written. The data storage section is the CP of the electronic cash register itself.
It is separated from U and directly connected to the bus line and CPU of the data writing device via the bus line and the connection terminal. Therefore, the CPU of the data writing device can directly control the data storage section.

Further, an external recording section such as a floppy disk drive (FDD) is connected to this data writing device.

Then, a floppy disk (FDK) on which setting data and program data are pre-recorded is set in this FDD, and the name of the program in the floppy disk is entered using the keyboard provided on the operation panel of the data writing device.
Specify the setting data name) and temporarily store the entire specified program in the data buffer in the data writing device.

Then, after specifying the program storage address or storage area of the data storage section in the electronic cash register using the keyboard again, when the write command key is pressed manually, the program is stored in the target area of the data storage section.

[Problems to be Solved by the Invention] However, the data writing device configured as described above still has the following problems.

That is, in order to store program data and setting data read from a floppy disk drive device into a data storage section of an electronic cash register, it is necessary to specify the storage start address or storage area of the data storage section from the keyboard each time. As a result, it is necessary to store the program data recorded on the floppy disk in the data buffer without dividing it. therefore,
There is a problem in that a data buffer having a storage capacity equal to or greater than the capacity for recording each program data of a floppy disk is required.

In addition, it is necessary to specify the storage start address and storage area of the data storage section in the electronic cash register each time, so if the operator specifies the wrong address, the program data will be stored in the wrong area. .

In this case, since the user does not immediately notice that he or she has specified an incorrect address, there is a concern that the electronic cash register may malfunction later.

The present invention has been made based on these circumstances, and its purpose is to store the address of a write area information memory that stores data write area information in the data storage section of each data processing device. By doing so, the present invention aims to provide a data writing device that can minimize the area in which data input from an external recording section is temporarily recorded, simplify operations, reduce the probability of erroneous operations, and improve reliability. be.

[Means for Solving the Problems] As shown in FIG. 1, the present invention connects a connection terminal 1 to a data processing device 2, thereby allowing the bus line to connect to the data storage of the data processing device via the connection terminal. In the data writing device, which is directly connected to the data processing unit 3 and which reads data recorded in the external recording unit 4 and writes it to the data storage unit of the data processing device via the connection terminal, the data of the data processing device is A device-specific address memory 6 that stores the address of a storage section in which a write area information memory 5 is formed that stores data write area information in the storage section for each model number of each data processing device, and data read from an external storage section. A bucket memory 7 having a specified storage capacity for storing data, and a model selection key 8 and a write command key 9 for specifying the model number of the connected data processing device are provided on the operation panel, and the data processing device is connected to the connection terminal. In this state, in response to a key input operation of the write command key, the address reading means 10 reads the address corresponding to the model number specified by the model selection key from the model-specific address memory, and specifies the read address. The data writing means 11 writes the data stored in the bucket memory into the data storage unit according to the data write area information stored in the write area information memory stored at the address of the storage unit in the data processing device. There is.

[Operation] With the data writing device configured in this way, data writing area information such as the start address where each data in the data storage section of each data processing device is written is stored in the storage section of the data processing device. It is stored as a write area information memory. The storage section of the data writing device is formed with a model-specific address memory that stores the address where the write area information memory of the storage section of each data processing device is formed, according to the model number of each data processing device. . Therefore, if you specify the model number of the data processing device connected to the connection terminal from the operation panel using the model selection key, the write area information memory of the storage section in the data processing device corresponding to the model number of the specified model can be used. The storage address of is specified. Therefore, if the write command key is input in this state, the data read from the external storage section and stored in the bucket memory will be written to the data storage section according to the write area information of the write area information memory specified earlier. be included. As a result, the operator does not have to enter the write address of the data storage section of the data processing device manually. Furthermore, since one piece of program data may be divided, the storage capacity of the data writing device can be reduced.

[Example] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a perspective view showing the data writing device of the embodiment.

An operation panel formed on the upper surface of the housing 21 formed in the shape of a rectangular parallelepiped is used to select the model number of an electronic cash register as a data processing device (not shown) connected via a cable 22 and a connection terminal 23. For example, a model selection key 24 formed of a dip switch or the like is provided. Adjacent to the model selection key 24, a program selection key 25, also formed by a dip switch, is provided for designating the program number of each program data recorded on the floppy disk. Furthermore, write (load) command key 26, read (save) command key 2
7. Write indicator lamp 28, read indicator lamp 29. A plurality of error display lamps 30 and the like are arranged.

In addition, a floppy disk insertion slot 3 is provided on the side of the housing 21.
1 is formed.

FIG. 3 is a block diagram showing the data writing device.

The CPU 32 executes various arithmetic operations based on key human power information of various operation keys on the operation panel. And C.P.
A ROM 34.U32 stores control programs, model-specific address memories, etc. via a bus line 33 consisting of a data bus, an address bus, and a control line. RAM 35 for storing variable data such as bucket memory. 3 as an external recording section
．． 5-inch floppy disk drive (FDD)
) 36; a DMA control unit 38 that directly transfers the program data read from the FDD 36 to the bucket memory of the RAM 35; Various display lamps 2
8.29.30 and various operation keys on the operation panel 24.2
'5.26°27 is connected to the input/output circuit 39. A buffer circuit 40 and a latch circuit 41 are connected.

The buffer circuit 40 is connected to the connection terminal 23 via a cable 22, which is connected to a connection terminal 43 of an electronic cash register 42 as a data processing device.

An electronic cash register (as the data processing device)
ECR) 42, as shown in the figure, the CPU 45. ROM 46 in which fixed data such as write area information memory is stored. Data storage section 47 consisting of RAM; Keyboard 48 for inputting sales data such as the number of sales items and sales amount; Display section 49 for displaying the sales data, total amount, etc. A printer 50 or the like is connected to print out sales data, total amount, etc. on the receipt.

When the connection terminal 23 of the data writing device and the connection terminal 43 of the electronic cash register 42 are connected, the bus line 33 of the data writing device and the bus line 44 of the electronic cash register 42 are connected. As a result, the CPU 32 of the data writing device can directly control the data storage section 47 of the electronic cash register 42. Further, the latch circuit 41 performs bank switching control of the data storage section 47.

Note that 51 in the figure is a power source that supplies DC drive voltage to each part.

A write area information memory 52 formed in the ROM 46 of the electronic cash register 42 stores write area information of program data to be written in the data storage section 47, and has a memory configuration shown in FIG. It has become. In other words, the write area information information memory 52 includes the number of memories (number of programs) that store program data to be written in the data storage section 47, its own model number, and whether or not the data storage section 47 is configured as a bank. A bank presence/absence flag for storing information on the data, a start address and an end address for writing each program data are stored. In this embodiment, 16 areas for writing program data are designated.

As shown in FIG. 5, a model-specific address memory 53 is formed in the ROM 34 of the data writing device.

This model-specific address memory 53 stores the corresponding electronic cash register 4 according to the model number of the electronic cash register 42.
The start address of the write area information memory 52 in the ROM 46 of No. 2 is stored.

Furthermore, a bucket memory 54 having a storage capacity of 2 KB (kilobytes) is formed within the RAM 35.

Further, FIG. 7 is a diagram showing each program data recorded on the floppy disk.

The CPU 32 of the data writing device is programmed to execute the data writing process according to the flowchart of FIG. That is, the connection terminal 23 is connected to the connection terminal 43 of the corresponding electronic cash register 42, and the floppy disk on which the program data to be written to the data storage section 47 of the corresponding electronic cash register 42 is recorded is inserted into the floppy disk insertion slot of the FDD 36. 31, select the model number of the electronic cash register 42 using the model selection key 24 on the operation panel, and select the program number of the program data to be written using the program selection key 25, and then the power is turned on. After executing various initial processes, press the model selection key 24 with Pl.
Then, the model number and program number selected with the program selection key 25 are read.

When the write (load) command key 26 is inputted, the address corresponding to the corresponding model number is read from the model-specific address memory 53 of the ROM 34. Then, the write area information memory 52 stored in the R0M 46 of the electronic cash register 42 at a lower address from the read address
It is confirmed that the model number stored in , and the model number previously selected using the model selection key 24 match.

Thereafter, in P3, the storage area of the program data of the program number selected by the program selection key 25 on the floppy disk (FDK) set in the FDD 36 is divided into 2 KB areas.

Next, 2K of the corresponding program number divided earlier at P4
B program data is read and stored in the bucket memory 54 of the RAM 35 via the DMA control unit 38. Thereafter, 2 KB worth of program data is read from the bucket memory 54, and the data write area in the data storage section 47 of the electronic cash register 42 is indicated by the start address and end address corresponding to the corresponding program number of the write area information memory 52. Write to the area corresponding to the information.

When the 2 KB program data is written to the data storage section 47, it is checked in P5 whether the program data divided into 2 KB of the corresponding program number still remains on the floppy disk. If there is any remaining program data, the program returns to P4 and reads the next 2 KB of program data. If there is no remaining 2KB of program data in P5, P6
Proceed to , and check whether the writing process for all programs has been completed. If it has not finished, return to Pl.

That is, the next program number is selected with the program selection key 25, and the key input operation of the write command key 26 is awaited.

In the data writing device configured in this way, the connection terminal 23 of the data writing device is connected to the connection terminal of the electronic cash register 42 into which data is to be written, and the floppy disk on which the program data to be written is recorded is transferred to the FD.
Insert the floppy disk into the D36's floppy disk insertion slot 31, specify the model number and program number using the model selection key 24 and program selection key 25 on the operation panel, and press the write command key 26 to select the program with the corresponding program number. Data is read from the floppy disk and written to the regular storage area of the data storage section 47 of the electronic cash register 42.

In this way, the write area information of each program data stored in the data storage section 47 of the electronic cash register 42 is stored in advance in the write area information memory 52 and the model-specific address memory 5.
2, there is no need to manually press the keys from the operation panel of the data writing device. As a result, the operation of the data writing device is simplified, and the probability of erroneous operation can be significantly reduced.

Furthermore, if a model number different from the model number of the electronic cash register 42 connected to the connection terminal 23 is selected using the model selection key 24, the error display lamp 30 will light up, so that the operator will immediately notice the operational error.

Furthermore, since it is not necessary to store all the program data recorded on the floppy disk in the data writing device at once, the storage capacity of the bucket memory 54 formed in the data writing device can be set to 2 KB, for example. It is possible to achieve a relatively small storage capacity. Therefore, the overall storage capacity can be reduced compared to conventional devices.

In addition, in the embodiment, only the case of writing data has been described, but when writing each program data stored in the data storage section 47 of the electronic cash register 42 to an external floppy disk, the above process is reversed. It is easily executed by implementing

Furthermore, although this embodiment has been described using an electronic cash register as the data processing device, other data processing devices may be used.

[Effects of the Invention] As explained above, according to the present invention, the address of the write area information memory that stores data write area information in the data storage section of each data processing device is stored.

Therefore, the area in which data input from the external recording section is temporarily recorded can be minimized, the operation can be simplified, the probability of erroneous operation can be reduced, and the reliability of the entire apparatus can be improved.

[Brief explanation of drawings]

Figure 2 is a perspective view, Figure 3 is a block diagram, Figures 4 to 6 are diagrams showing the main memory of the storage section, and Figure 7 is a diagram of each program recorded on a floppy disk. FIG. 8 is a flowchart showing the operation. 21... Housing, 23... Connection terminal, 24... Model selection key, 25... Program selection key, 26...
Write command key, 27... Read command key, 31... Floppy disk insertion slot, 32... CPU, 33.4
4...Bus line, 34.46...ROM, 35.
...RAM. 36... Floppy disk drive device, 47...
- Data storage unit, 52...Writing area information memory, 53
...Model specific address memory, 54...Bucket memory. Applicant's agent Patent attorney Takehiko Suzue No. 6! i 7th! ! ! Figure 8

Claims (1)

[Claims] By connecting the connection terminal to the data processing device, the bus line is directly connected to the data storage section of the data processing device via the connection terminal, and the data recorded in the external storage section is read and transferred to the connection terminal. A data writing device configured to write data to a data storage unit of the data processing device through a memory, in which a write area information memory for storing data write area information in the data storage unit of the data processing device is formed. A device-specific address memory that stores the address of each data processing device by model number, a bucket memory that has a specified storage capacity that stores data read from the external storage device, and a connected data processing device provided on the operation panel. A model selection key and a write command key specifying the model number of the device, and when a data processing device is connected to the connection terminal, the model selection key is pressed in response to a key input operation of the write command key. address reading means for reading an address corresponding to a specified model number from the model-specific address memory; and storage in a write area information memory stored at an address of a storage unit in the data processing device specified by the read address. A data writing device comprising: data writing means for writing data stored in the bucket memory into the data storage section according to data writing area information.