JPH05221082A - Printer - Google Patents

Abstract

PURPOSE:To perform a debugging action without an in-circuit emulator by entering a stop address for a program entended for debugging through an input switch on a control panel, then running a display program by a jump command during the execution of a debugging action, if the debugging mode is used. CONSTITUTION:If a control panel 7 is set to a debugging mode by operation of a mode changeover switch 10, a stop address of memory 3 for changing the content of an operating program is entered through a control panel 7, and a jump command is written in an area indicated by the stop address using a microprocessor 2. Further, a display program is run by the jump command during the execution of a debugging action in the operating program, and thereby information in the microprocessor 2 is displayed on the control panel 7. Consequently, it is possible to execute the debugging action without the use of an in-circuit emulator, and also make the operation easy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer device, and more particularly to a printer device in which an operation program is built in a memory and the operation program is executed by a microprocessor.

[0002]

2. Description of the Related Art A conventional printer apparatus of a so-called program control system in which an operation program is built in a memory and the operation program is executed by a microprocessor is
When debugging the operating program, the microprocessor is removed, and instead, the same operation as the microprocessor can be performed, and further, the operation can be stopped and the internal information of the processor at the time of the stop can be displayed. This is called an in-circuit emulator) and is connected for debugging.

[0003]

As described above, the conventional printer device requires the in-circuit emulator for debugging, and therefore the operating program cannot be debugged when the in-circuit emulator cannot be prepared. have. Further, even when an in-circuit emulator can be prepared, it is necessary to remove the microprocessor and connect the in-circuit emulator, which causes a problem that the work is troublesome.

[0004]

A printer device according to the present invention comprises a readable / writable memory for storing an operation program,
The operation panel includes a microprocessor for reading the operation program from the memory and executing the operation program, an operation panel having a display and an input switch, and a mode changeover switch for setting the operation panel in a debugging state. Is set to the debugging state, the stop address of the memory for changing the contents of the operation program is input from the operation panel, the microprocessor writes a jump instruction to the area indicated by the stop address, and the operation is performed. While the program is being debugged, the display jumps to the execution of the display program by the jump instruction and the information inside the microprocessor is displayed on the operation panel.

[0005]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a flow chart showing the main operation of the embodiment of FIG. 1, FIG. 3 is a flow chart showing the rewriting program execution operation of the embodiment of FIG. FIG. 4 is a flowchart showing the execution operation of the display program of the embodiment of FIG.

The printer device 1 shown in FIG. 1 receives print data sent from the host computer 20, and prints it on the print paper in the print mechanism section 6. The processor 2 controls the operation of the printer device 1 as a whole. The memory 3 is readable and writable by the processor 2 and stores an operation program executed by the processor 2 for control. The data reception interface 4 is
It controls the interface between the host computer 20 and the processor 2. The print interface 5 controls the interface between the print mechanism unit 6 and the processor 2. The operation panel 7 has a display 8 and an input switch 9, and when the printer device 1 is in a state (print mode) for printing the print data sent from the host computer 20, in the print mechanism unit 6, An operation for designating a printing function such as selection of a character type is performed from the input switch 9, and a display necessary for operating the printer device 1 is displayed on the display unit 8. When debugging the operation program executed by the processor 2 (debugging mode), the input switch 9
Input the address value from the
The internal information of is displayed. Mode switch 10
Is a switch for the operator to operate in order to switch the operation mode of the printer device 1 to the printing mode or the debugging mode.

Next, the operation of the printer device constructed as described above will be described with reference to FIGS.

The main operation of the printer device 1 operates as shown in FIG. When the operator turns on the power and wants to print the print data sent from the host computer 20, the mode selector switch 10 is set to the print mode and the operation program executed by the processor 2 is debugged. In this case, the mode switch 10 is set to the debugging mode (step 1
1). When the print mode is set in step 11, the printer device 1 performs a normal print operation. That is, when the print data is sent from the host computer 20 to the printer device 1, the processor 2 receives the print data via the data check interface 4 (step 13). The processor 2 processes the print data into a printable format (step 14), and sends the processed print data to the print mechanism unit 6 via the print interface 5 to print (step 14). This series of operations is repeated to complete the output printing of all the print data sent from the host computer 20, thereby completing the operation. When the debugging mode is set in step 11, the processor 2 executes the rewriting program (step 12) and then proceeds to step 13.

To execute the rewriting program, as shown in FIG. 3, the operator first inputs the input switch 9 on the operation panel 7.
The stop address is input from (step 16). When the input of the stop address is completed, the processor 2 causes the memory 3
An instruction (jump instruction) for jumping to the display program is written in the area indicated by this stop address (step 17). With the above, the execution of the rewriting program ends.

When the execution of the rewriting program is completed, the processor 2 prints the program to be debugged as usual in steps 13 to 15.
The jump instruction written in step 17 is included in the printed program, and the processor 2
When this jump instruction is executed, the display program is executed.

The display program is executed by displaying the register value of the processor 2 on the display 8 of the operation panel 7 as shown in FIG. 4 (step 18).

As described above, in the debugging mode, the stop address of the program to be debugged is input from the input switch 9 of the operation panel 7, and the processor 2 writes to the area indicated by the stop address of the memory 3. Write a jump instruction, and while executing debug, move to the execution of the display program by the jump instruction,
Display the value of the register of the processor 2 on the display 8 of the operation panel 7.
It is possible to execute the function equivalent to the stop of the operation performed by connecting the conventional in-circuit emulator and the display of the internal information of the processor at the time of the stop.

In executing the display program,
Display the value of the register of the processor 2 on the display 8 of the operation panel 7.
It is possible to display not only the values displayed in the above, but also the values such as the memory and the input / output port that the processor 2 can recognize.

[0015]

As described above, the printer apparatus of the present invention is provided with a mode changeover switch for switching the operation mode of the printer apparatus to the printing mode or the debugging mode. The stop address of the program is input from the input switch on the operation panel, the processor writes a jump instruction to the area indicated by this stop address of the memory, and while the debug is being executed, the jump instruction shifts to the execution of the display program. By displaying the value of the register on the display of the operation panel, the same function as the operation stopped by connecting the conventional in-circuit emulator and the display of the internal information of the processor at the time of the stop can be executed. It is possible to There is an effect that the emulator is capable of executing debug without also it is not necessary to connect the in-circuit emulator to remove the microprocessor is eliminated, there is also an effect that it is possible to facilitate the work.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart showing the main operation of the embodiment of FIG.

FIG. 3 is a flowchart showing an execution operation of a rewriting program of the embodiment of FIG.

FIG. 4 is a flowchart showing an execution operation of a display program of the embodiment of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printer device 2 Processor 3 Memory 4 Data receiving interface 5 Printing interface 6 Printing mechanism 7 Operation panel 8 Display 9 Input switch 10 Mode changeover switch 11-18 Step 20 Host computer

Claims (2)

[Claims] 1. A readable / writable memory for storing an operation program, a microprocessor for reading and executing the operation program from the memory, an operation panel having a display and an input switch, and the operation panel in a debugging state. Equipped with a mode switch to set,
When the operation panel is set to the debugging state by the mode changeover switch, the stop address of the memory for changing the content of the operation program is input from the operation panel, and the microprocessor indicates the area indicated by the stop address. A jump command is written in the printer, and while the debugging of the operation program is being executed, the jump command causes the display program to be executed to display information inside the microprocessor on the operation panel. apparatus. 2. A readable / writable memory for storing an operation program, a microprocessor for reading and executing the operation program from the memory, an operation panel having a display and an input switch, and the operation panel in a debugging state. A mode changeover switch to be set and a data reception interface for performing interface control between the host computer and the microprocessor, and when the operation panel is set to the debugging state by the mode changeover switch, the operation from the operation panel is performed. The stop address of the memory for changing the contents of the program is input, a jump instruction is written to the area indicated by the stop address by the microprocessor, and the jump instruction is executed during the debugging of the operation program. A printer device, characterized in that the internal information of the microprocessor is displayed on the operation panel after execution of a display program.