JPH06152697A - Control system for communication terminal equipment with ic memory card - Google Patents

Abstract

PURPOSE:To improve the development efficiency of an IMA program by controlling a control layer and a driver layer of a terminal equipment main body through the process communication between 2nd and 1st interfaces and giving a hardware control function to an IC memory application (IMA) execution means. CONSTITUTION:An IMA execution means 18 on an IC memory card 17 inserted to an IC memory card slot of a communication terminal equipment 10 and a communication terminal equipment application execution means 13 operated under the control of a multi-task operating system 16 in a nonvolatile memory 11 of the communication terminal equipment 10 are operated in cooperation. While the 2nd interface means 19 makes inter-process communication of a prescribed specification with the 1st interface means 12, the means 19 controls a control layer 14 and a driver layer 15 of the main body 10. The means 19 gives a hardware control function by the control layer 14 and the driver layer 15 to the means 18. Thus, no process communication with the means 13 is required for the means 18 and direct control of the layers 14, 15 is not required and the means 18 is operated as a single task operating system environment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control system for a communication terminal with an IC memory card, and more particularly to a control system for a communication terminal with an IC memory card in which an application program is arranged on the IC memory card.

In a communication terminal with an IC memory card, an application program on the IC memory card is developed in response to a user's request. For this IC memory card application program, it is necessary to improve the development efficiency and the portability of the program with other terminals such as a personal computer.

[0003]

2. Description of the Related Art FIG. 9 is a block diagram of a conventional control system in a communication terminal with an IC memory card. A communication terminal with an IC memory card (hereinafter referred to as a communication terminal) is equipped with an IC memory card slot, and the IC memory card 17 is inserted into this slot. The communication terminal body 10 has a non-volatile memory 11 built-in, and I
It is operated by the C memory card application program 51 and a program built in the main body.

As a communication terminal with an IC memory card, for example, there is a multi-function telephone, etc., but the hardware function is not as powerful as a personal computer. Therefore, in order to store an application program for performing a service of a communication terminal in the IC memory card 17 and to realize a specific type of service as needed, the specific type of IC memory card 17 is provided with an IC memory card slot. I am trying to use it by inserting into. The communication terminal services include, for example, bank account inquiries and stock trading.

A communication terminal with an IC memory card (hereinafter referred to as a communication terminal) exchanges data and the like with a host device connected via a communication line in response to an instruction from an input device such as a keyboard. And has a function of outputting data and the like to an output device such as a display of a communication terminal.

The application layer of the non-volatile memory 11 of the communication terminal body 10 has a communication terminal built-in application program 33 composed of a plurality of application programs, and the control layer has an IC memory card control program 41 and a communication control program 43. , HMI (Human Machine Interface) control program 45 and the like.

The driver layer has an IC memory card driver 42, a communication driver 44, and an HMI driver 46.
And so on. Further, it has a communication terminal operating system (OS) 47 for controlling the entire program of the communication terminal body 10 and controlling hardware such as input / output devices.

The IC memory card control program 41 is
The IC memory card driver 42 is controlled to monitor the mounted / unmounted state of the IC memory card 17, and other programs are controlled according to the monitoring result. Further, the communication control program 43 controls the communication control driver 44 to exchange data and the like with the host device through the communication line. Further, the HMI control program 45 controls the HMI driver 46 to interface with input / output devices such as a keyboard and a display.

On the IC memory card 17, an application memory IC memory card application program 51 and a control memory IC memory card control program 5 are provided.
2. There is a driver layer IC memory card driver control program 53.

The IC memory card application program 51 operates in cooperation with the communication terminal built-in application program 33. The communication terminal OS 47 is a multitasking OS, and a plurality of communication terminal application programs are operating on the communication terminal. Therefore, I
The C memory card application program 51 has a function of performing inter-process communication with a plurality of processes of the communication terminal application program 33.

Further, when controlling the hardware of the communication terminal, it is necessary to control the driver layer of the communication terminal main body 10. Therefore, the IC memory card application program 51 makes a system call to the communication terminal OS 47 and It controls each driver of the main body 10. At this time, driver conflict control is performed with the communication terminal built-in application program 33.

Further, the IC memory card control program 41 of the communication terminal body 10 is controlled by using the IC memory card control program 52 of the control layer. The control of the IC memory card driver 42 of the communication terminal body 10 is performed by the IC memory card driver control program 5 in the driver layer.
3 is used.

The IC memory card driver 42 may be controlled by both the IC memory card control program 52 and the IC memory card driver control program 53. Therefore, the IC memory card control program 5
2 and IC memory card driver control program 5
3 has a function of performing competition control of the IC memory card driver 42.

In order to operate normally in cooperation with the communication terminal built-in application program 33, the IC memory card driver control program 53 includes the communication terminal OS.
47 has a function of directly controlling.

[0015]

However, as described above, in the conventional control method in the communication terminal with the IC memory card, the IC memory card application program 51 includes the plurality of processes of the communication terminal body 10 and the inter-process communication. It is necessary to have a function for performing the above and a function for performing the driver conflict control. Further, the IC memory card driver control program 53 and the IC memory card driver control program 53 need a driver conflict control function. Further, the IC memory card driver control program 53 needs a function of directly controlling the communication terminal OS 47.

For the above reasons, there has been a problem that it is difficult to develop an application program on the IC memory card and the development efficiency is low. Further, since the communication terminal OS is directly controlled, if the specifications of the communication terminal OS are changed or the specifications of the hardware of the communication terminal are changed, it is necessary to change the existing IC memory card application program. there were. Further, there is a problem that the IC memory card application program operates only on a dedicated OS of the communication terminal and is difficult to port to other terminals such as a personal computer.

The present invention has been made in view of the above points, and is for a communication terminal with an IC memory card, which has a high development efficiency of an IC memory card application program and does not need to be changed when the specifications of hardware and OS are changed. The purpose is to provide a control method.

[0018]

FIG. 1 is a block diagram showing the principle of the present invention. The present invention relates to an IC memory card application executing means 18 on an IC memory card 17 which is inserted into an IC memory card slot of the communication terminal body 10, and a multitask operating system 16 in a nonvolatile memory 11 of the communication terminal body 10. In a control method of a communication terminal with an IC memory card that operates in cooperation with a communication terminal application executing means 13 that operates under control, in accordance with an instruction received by inter-process communication of a predetermined specification with the IC memory card 17, The first interface means 12 and the first interface means 12 in the non-volatile memory 11 for controlling the control layer 14 and the driver layer 15 of the communication terminal body 10 while performing interprocess communication with the communication terminal application execution means 13. Performs inter-process communication of predetermined specifications with the interface means 12 of By giving an instruction to the first interface means 12 in response to an instruction from the IC memory card application executing means 18, an interprocess between the communication terminal application executing means 13 and the process via the first interface means 12. On the IC memory card 17, which controls the control layer 14 and the driver layer 15 while communicating, and provides the IC memory card application executing means 18 with a hardware control function by the control layer 14 and the driver layer 15. The second interface means 19 of FIG.

[0019]

The second interface means 19 of the present invention controls the communication terminal main body 10 while performing the interprocess communication with the communication terminal application executing means 13 by the interprocess communication of the predetermined specification with the first interface means 12. It controls the layer 14 and the driver layer 15, and provides the IC memory card application executing means 18 with a hardware control function by the control layer 14 and the driver layer 15.

Therefore, the IC memory card application executing means 18 does not require interprocess communication with the communication terminal application executing means 13, and the control layer 14
Further, the direct control of the driver layer 15 is not required, and it can operate as a single task operating system environment.

[0021]

FIG. 2 is a hardware configuration diagram of a communication terminal with an IC memory card to which the present invention is applied. The communication terminal with an IC memory card includes a central processing unit (CPU) 21, a non-volatile memory 11, an input / output device 22 such as a keyboard and a display, a communication line interface circuit 23, an IC memory card interface circuit 24, an IC memory card 17.
Consists of.

The IC memory card 17 is an IC of a communication terminal.
IC is inserted into a memory card slot (not shown)
It is connected to the memory card interface circuit 24. C
The PU 21 and other circuits are connected via a bus 25. The CPU 21 controls the operation of the entire communication terminal according to the program in the non-volatile memory 11 and the program in the IC memory card.

The communication terminal sends and receives data and the like to and from the host device connected via the communication line interface circuit 23 in response to an instruction from an input device such as a keyboard, and outputs the data on the display or the like of the communication terminal. It has the function of outputting data to the device.

FIG. 3 shows a block diagram of an embodiment of the present invention.
3, those parts that are the same as those corresponding parts in FIGS. 1, 2 and 9 are designated by the same reference numerals. In the application layer in the non-volatile memory 11 of the communication terminal body 10, there is a communication terminal built-in application program 33, which is the communication terminal application executing means 13. The communication terminal built-in application program 33 includes a plurality of application programs.

The control layer 14 of the communication terminal body 10 has an IC
There are a memory card control program 41, a communication control program 43, an HMI control program 45, and the like. Further, the driver layer 15 has an IC memory card driver 42, a communication driver 44, an HMI driver 46 and the like.

Further, there is a communication terminal OS 47 which is a multitasking operating system 16 for controlling the entire program of the communication terminal body 10 and controlling the hardware such as the input / output device 22. Under the control of the communication terminal OS 47, a plurality of communication terminal application programs are operating on the communication terminal main body 10.

The IC memory card control program 41 is
The IC memory card driver 42 is controlled to monitor the mounted / unmounted state of the IC memory card 17, and other programs are controlled according to the monitoring result. The communication control program 43 controls the communication driver 44 to exchange data and the like with the host device through the communication line. At this time, the communication driver 44 controls the communication line interface circuit 23 connected to the communication line. Also, HMI
The control program 45 controls the HMI driver 46,
It interfaces with the input / output device 22 such as a keyboard and a display.

Further, an IC memory card interface program 32, which is the first interface means 12, is provided in the application layer of the communication terminal body 10. IC memory card interface program 32
Performs inter-process communication in accordance with predetermined specifications with an interface program 37 on the IC memory card 17 described later. In accordance with an instruction from the interfacer program 37 in the interprocess communication with the interfacer program 37, each program of the control layer 14 and the driver layer 15 is made by a system call while performing the interprocess communication with the communication terminal built-in application program 33. To control.

On the IC memory card 17, there is an IC memory card application program 36 which is an IC memory card application executing means 18 in the application layer. Also, the second interface means 19
An interface program 37 is provided.

The interface program 37 is an IC
In response to an instruction from the memory card application program 36, communication between the IC memory card interface program 32 and processes according to predetermined specifications is performed, and the IC
An instruction is given to the memory card interface program 32. By this inter-process communication, the communication terminal main body 1 is transmitted via the IC memory card interface program 32.
No. 0 communication terminal built-in application program 33, while performing inter-process communication, the control layer 14 and the driver layer 15 of the communication terminal body 10 are made by a system call.
Control each program. Also, the driver competition control necessary for controlling the control layer 14 is performed.

As described above, the interfacer program 37 controls the control layer 14 and the driver layer 15 while performing inter-process communication with a plurality of processes of the communication terminal body 10. Accordingly, the interfacer program 37 provides the IC memory card application program 36 with a hardware control function by the control layer 14 and the driver layer 15.

Therefore, the IC memory card application program 36 does not require interprocess communication with the communication terminal built-in application program 33, and does not require direct control of the control layer 14 and the driver layer 15, so that a virtual single task It can operate as an operating system environment.

The IC memory card application program 36 activates the interfacer program 37 by a function call of a predetermined format corresponding to the control of each hardware of the communication terminal. By this function call, the interface program 37
Interprocess communication with the C memory card interface program 32 is performed.

In this embodiment, a library 38 corresponding to each function call to the interfacer program 37 is prepared in the IC memory card application program 36, and the interface program 37 is activated by the library call. There is.

Next, the operation sequence of this embodiment will be described. FIG. 4 shows an explanatory diagram of the activation of the IC memory card application program. Upon receiving an instruction to activate the IC memory card application program 36 from the communication terminal body 10, the interface program 37
The environment is initialized by the initialization processing, the IC memory card application program 36 is activated, and an application process is generated.

FIG. 5 shows an explanatory view when a character string is displayed on the communication terminal. This character string is displayed on a display device such as an LCD (liquid crystal display). The IC memory card application program 36 issues a character string output library call, the library issues a character string output function call, and the interface program 3 is issued.
Start 7.

Interfacer program 3 started
7 is an IC memory card interface program 32
O to output the character string to the LCD by performing inter-process communication with
The IC memory card interface program 32 is instructed to issue the S system call. The IC memory card interface program 32 issues the above character string output system call based on the instruction from the interfacer program 37. By issuing this system call, the HMI driver 46 is controlled via the HMI control program 45, and the character string is displayed on the LCD.

When the above system call is completed, it returns to the interfacer program 37, the function call is completed and returns to the library.
When the library call is completed, the process returns to the IC memory card application program 36, and the character string display ends.

As described above, it is not necessary for the IC memory card application program 36 to issue a system call for the communication terminal OS 47 and for the interface control program 37 to perform driver conflict control. Therefore, the interfacer program 37 functions as a virtual single task OS, and the IC memory card application program 36 seems to operate in a single task OS environment.

Next, the interrupt processing when it is desired to operate asynchronously with the IC memory card application program 36 will be described. FIG. 6 is an explanatory diagram of the interrupt processing routine registration. In FIG. 6, the interface program 37 prepares a processing routine table for registering an interrupt processing routine.

The IC memory card application program 36 calls a library for registering an interrupt processing routine, and this library issues a function for registering an interrupt processing routine. By issuing this function, the interface program 37 registers the entry address of the interrupt processing routine in the processing routine table for each interrupt factor.

When the interface processing program 37 completes the registration of the interrupt processing routine, the function is completed and the process returns to the library, and further returns to the IC memory card application program 36 to complete the registration of the interrupt processing routine.

FIG. 7 shows an explanatory diagram of starting an interrupt processing routine. When an interrupt factor occurs in the communication terminal main body 10, the interrupt event is notified to the interfacer program 37 by interprocess communication via the IC memory card interface program 32. The interfacer program 37 searches the processing routine table, obtains the entry address of the interrupt processing routine, and the IC memory card application program 36.
The interrupt processing routine of is started.

By activating this interrupt processing routine,
The original application processing of the IC memory card application program 36 is temporarily interrupted. When the interrupt processing ends, the application processing of the IC memory card application program 36, which has been temporarily suspended, is restarted.

As described above, the IC memory card application program 36 does not need to prepare a port for interprocess communication that captures an interrupt event, and asynchronous processing such as interrupt processing is performed by the same method as in the single task OS environment. Can be achieved with.

FIG. 8 is an explanatory diagram of the ending operation of the IC memory card application. The IC memory card application program 36 activates the application termination processing of the interfacer program 37 by a function call. The interfacer program 37
After executing the application termination process, IC memory card interface program 3
A system call for the communication terminal OS 47 is issued via 2. As a result, the communication terminal body performs the application termination process.

As described above, the interfacer program 37 of this embodiment controls the control layer 14 and the driver layer 15 while performing inter-process communication with a plurality of processes of the communication terminal body 10, and also controls the driver. Conflict control of. This allows the interface program 37
Is the IC memory card application program 36
In addition, a hardware control function by the control layer 14 and the driver layer 15 is provided.

Therefore, the IC memory card application program 36 does not need interprocess communication with the communication terminal built-in application program 33 and driver competition control, and does not need direct control of the control layer 14 and the driver layer 15. . Therefore, the IC memory card application program 36 can operate as a virtual single task operating system environment.

From the above, the development of the IC memory card application program 36 becomes easy, and the development efficiency can be improved. Further, when the specifications of the communication terminal hardware or the communication terminal OS 47 are changed, the IC memory card application program 36 need not be changed.

Further, since the interprocess communication between the interfacer program 37 and the IC memory card interface program 32 has a predetermined specification, when the specification of the communication terminal hardware or the communication terminal OS 47 is changed, the communication terminal main body is changed. The IC memory card interface program 32 of 10 need only be changed, and the interface program 37 of the IC memory card 17 need not be changed.

Therefore, the developed IC memory card application program 36 and interface program 37 are the hardware of the communication terminal or the communication terminal OS.
Even if the specification of 47 is changed, it can be used without any change.

By adjusting the specifications of the interface program 37 to the specifications of a general OS of a personal computer, such as MS-DOS, the IC memory card application program 36 can be transferred to another terminal such as a personal computer. And the porting of application programs for other terminals to the IC memory card application program 36 can be facilitated.

If the specifications of the interface program 37 are matched with the specifications of a general OS of a personal computer, the IC memory card application program 36 can operate on the personal computer.
Can be debugged on a personal computer, and special equipment such as an in-circuit emulator (ICE) is unnecessary.

[0054]

As described above, according to the present invention, the IC memory card application executing means 18 does not require interprocess communication with the communication terminal application executing means 13, and the control layer 14 and the driver layer 15 are directly connected to each other. Since no control is required and it can operate as a single-task operating system environment, it improves the development efficiency of the IC memory card application execution means, and executes the IC memory card application when changing the specifications of the communication terminal hardware and the multitask operating system. It has the feature that it is not necessary to change the means.

[Brief description of drawings]

FIG. 1 is a principle configuration diagram of the present invention.

FIG. 2 is a hardware configuration diagram of a communication terminal to which the present invention is applied.

FIG. 3 is a configuration diagram of an embodiment of the present invention.

FIG. 4 is an explanatory diagram of activation of an IC memory card application.

FIG. 5 is an operation explanatory diagram when a character string is displayed on a communication terminal.

FIG. 6 is an explanatory diagram of registration of an interrupt processing routine.

FIG. 7 is an explanatory diagram of starting an interrupt processing routine.

FIG. 8 is an explanatory diagram of an IC memory card application ending operation.

FIG. 9 is a configuration diagram of a conventional control method in a communication terminal with an IC memory card.

[Explanation of symbols]

 10 Communication Terminal Main Body 11 Non-Volatile Memory 12 First Interface Means 13 Communication Terminal Application Execution Means 14 Control Layer 15 Driver Layer 16 Multitask Operating System 17 IC Memory Card 18 IC Memory Card Application Execution Means 19 Second Interface Means 21 Central Processing unit (CPU) 22 I / O device 23 Communication line interface circuit 24 IC memory card interface circuit 25 Bus 32 IC memory card interface program 33 Communication terminal built-in application program 36 IC memory card application program 37 Interfacer program 41 IC memory card control program 42 IC memory card driver 43 Communication control program 44 Communication driver 45 HMI control program 46 HMI driver 47 Communication terminal OS

Claims (1)

[Claims] 1. An IC memory card application executing means (18) on an IC memory card (17) inserted into an IC memory card slot of a communication terminal body (10).
And a communication terminal application executing means (1) operating under the control of the multitasking operating system (16) in the non-volatile memory (11) of the communication terminal body (10).
In a control method of a communication terminal with an IC memory card that operates in cooperation with 3), the communication terminal application executing means (in accordance with an instruction received in interprocess communication of a predetermined specification with the IC memory card (17)). The non-volatile memory (1) for controlling the control layer (14) and the driver layer (15) of the communication terminal body (10) while performing inter-process communication with (13).
The first interface means (12) in 1) and the first
By performing interprocess communication of a predetermined specification with the interface means (12) of (1) and giving an instruction to the first interface means (12) in response to an instruction from the IC memory card application executing means (18). The IC memory card application is controlled by controlling the control layer (14) and the driver layer (15) while performing inter-process communication with the communication terminal application executing means (13) via the first interface means (12). And a second interface means (19) on the IC memory card (17) for providing the execution means (18) with a hardware control function by the control layer (14) and the driver layer (15). A control method for a communication terminal with an IC memory card, which is characterized in that