KR100315687B1 - method for emulating in exchange system - Google Patents

Abstract

The present invention relates to a method of emulation of a switching system. In the present invention, when a problem such as a failure occurs in the process of using the exchange system, it is possible to emulate for directly finding the cause of the failure in the exchange system itself without a separate emulator equipment.

Description

Method for emulating in exchange system

The present invention relates to an emulation method of an exchange system, and more particularly to an emulation method without using emulator equipment for emulating an exchange system.

Nowadays, not only products are sold to consumers, but also continuous management of the sold products, namely after-sales service, is also very important. Because from the consumer's point of view, if the price of the purchased product is high and low, and wants to provide after-sales service in case of product failure or other needs, the customer wants to be provided with prompt and friendly service. This is because the company's reliability is high as well as its reliability. As a result, companies that produce and sell products provide a competitive after-sale service with other companies and at the same time provide a thorough after-sales service that fulfills the responsibility for the products sold.

However, in the case of an exchange system such as a key phone system, a debugging device called an emulator is used to find the cause of the failure. Since the emulator device is bulky and other complicated equipment such as a workstation needs to be mobilized, it is necessary to request a customer's after-sales service. There is a problem that can not be satisfied 100%.

It is therefore an object of the present invention to provide an emulation method of an exchange system that can solve the above-mentioned conventional problems.

Another object of the present invention is to provide an emulation method for emulating an exchange system without using emulator equipment.

In order to achieve the above objects, the present invention provides a method for emulating a switching system, comprising: analyzing a command input through a personal communication device; And writing an address input to the decoder according to the analyzed command or displaying an error on a display screen.

1 is a block diagram of another key phone system according to a preferred embodiment of the present invention.

2 is a control flowchart of an emulation method of an exchange system according to a preferred embodiment of the present invention, and is a flowchart showing a process of receiving a command from a personal computer.

3 is a control flowchart of an emulation method of an exchange system according to a preferred embodiment of the present invention, which is a flowchart illustrating a process of processing an interrupt through a decoder.

4 is a control flowchart of an emulation method of an exchange system according to a preferred embodiment of the present invention, and is a flowchart showing a process of processing a step trace interrupt.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a key phone system 10 according to a preferred embodiment of the present invention. Referring to the drawings, the key phone system 10 is a decoder 14, a program ROM 16, a RAM 18, a trunk line around a central processing unit (hereinafter referred to as CPI) 12. The connection circuit 20, the switching circuit 22, the extension connection circuit 24, the trunk line 26, and the extension 28 are arranged, and the personal computer 32 is connected to the CPI through the RS-232C 30. 12). Here, the personal computer 32 performs a function of exchanging an address and a trace command for specifying a trace address with the key phone system 10 which is a simple exchange system. The decoder 14 can input up to 100 addresses from one specific address. [0049] Among the above configurations, although connected to the RS-232C 30 is shown as the personal computer 32, the LCD ( A liquid crystal display (LCD) is attached to transmit and receive serial data through RS-232C to use a key telephone (commonly referred to as a "keyphone telephone") having a MMC (Man Machine Communication) function.

In the key phone system 10 having the above-described configuration, the brake function, the trace function, the step function, and the display function which are made through the conventional emulator equipment are all made. Therefore, the keyphone system 10 has an advantage that can be quickly repaired because emulation is possible in the case of a failure of the keyphone system without using the emulator equipment that is not portable, there is an advantage in this repair process shown in Figures 2 to 4 It will be described with reference to the flow chart shown. Here, the break function is a function to know whether or not the data stored in a specific address of the memory can be read or written, the trace function is a function to execute and stop a specific command, the display function is a specific function of the memory This is a function for reading a street address or viewing the contents of a register. FIG. 2 is a flowchart illustrating a process of receiving a command from a personal computer.

First, referring to FIG. 2, in step 100, the CPI 12 of the key phone system 10 reads the port of the RS-232C 30 and enters the enter key from the personal computer 32 (or the key phone) of FIG. 1. After determining whether the key has been entered, if the enter key has not been entered, the process returns to step 100. If the enter key has been entered, the process recognizes this as a command and proceeds to step 102. The CPI 10 of the key phone system 10 stores the content input in step 102 in a buffer, and then proceeds to step 104 and determines whether the content transmitted from the step 102 is a brake command. As a result of the determination, in the case of a break command, the CPI 10 of the key phone system 10 proceeds to step 108 to write an address input to the decoder 14 so that an interrupt is generated when the address is later accessed. If the determination result in step 104 is not a brake command, the CPI 12 of the key phone system 10 proceeds to step 106 and determines whether it is a trace command, and if it is a trace command, the decoder (110). 14 writes the address inputted to and sets the trace flag of the temporary buffer in the RAM 18 area to indicate the trace instruction and returns to step 100. However, if it is determined in step 106 that the command is not a trace command, the CPU 12 of the key phone system 10 proceeds to step 112 and determines whether it is a display command. After the stored contents are output on the personal computer 32 screen, the process returns to step 100. If it is not a display command, the flow proceeds to step 116 to display an error on the monitor of the personal computer 32 and returns to step 100.

As such, since the brake function, the trace function, the step function, and the display function are all performed inside the key phone system 10 according to the present invention, the key phone system 10 can be emulated without using emulator equipment that is difficult to carry and install. .

3 is a flowchart illustrating a process of processing an interrupt through the decoder 14. That is, the flowchart shown in FIG. 3 represents a process for processing an interrupt that occurs when an address input to the decoder 14 is accessed while a program is received and an instruction is executed.

Referring to FIG. 3, in step 200, the CPI 12 of the key phone system 10 determines whether an emulator interrupt has been detected, and returns to step 200 when the emulator interrupt is not applied. If the emulator is interrupted, the CPI 12 proceeds to step 202 to store the contents of the current CPU 12 and the contents used in the keyphone system 10 in a buffer and monitor the personal computer 32. Will output Subsequently, the CPI 12 determines whether the trace flag is set in step 204 and, if the trace flag is set, proceeds to step 206 to turn on the step trace bit of the CPI 12. The flow returns to step 200. If the trace flag is not set, the process returns to step 200.

4 is a flow chart illustrating a process of processing a step trace interrupt. That is, this is a flowchart showing a process for processing a step trace interrupt when the trace bit of the CPI 12 is turned on.

Referring to FIG. 4, after determining whether the step trace interrupt has been performed in step 300, if the step trace interrupt is not received, the process returns to step 300. The instruction is stored in a buffer inside the RAM 18 area. In step 304, the CPI 12 determines whether the number of the commands stored in the buffer and the number of the input commands match, and if so, proceeds to step 306 to turn off the step trace bit of the CPI 12. off) and output the contents stored in the buffer to the monitor of the personal computer 32. If the number of stored commands does not match the number of input commands, the process returns to step 300 immediately.

Referring to the series of processes shown in Figures 2 to 4 as an example.

If you want to know whether to read the data stored at 12000h or write the data at the address of RAM 18, the brake function is used. After connecting the serial communication port of the (COM port) to the RS-232C (30) of the key phone system 10, press the Enter key prompt 'emul>'. Since the method of receiving the input from the personal computer 32 may use one of several methods, it will not be described in detail herein. Then, after the break command, a specific address is input. For example, if 'emul> break 12000h' is inputted, 12000h is written to the decoder 14 through the process of FIG. 2. Therefore, when the program is executed or read or written to 12000h address, an interrupt is applied. In this case, the current contents are output to the monitor of the personal computer 32 through the process of FIG. 3.

Herein, the above-described command includes various commands as follows. For example, selecting 'emul> break 12000h-12100h', 12000h, 13000h, or 19000h address means 'emul' is selected to select one address from 12000h to 12100h. > break 12000h, 13000h 19000h ',' emul> trace 12000h counter 2000 'which means to save 2000 instructions after accessing 12000h,' emul which means to execute and stop 10 instructions after the break instruction > stop 10 ',' emul> display register 'to display the current register contents after executing the break command.

As described above, according to the present invention, when a problem such as a failure occurs in the process of using the exchange system, since the cause of the failure is directly found through the emulation process of the exchange system itself without a separate emulator equipment, the failure occurs more quickly. There is an effect that can find the cause.

Claims (2)

Receives a central processing unit, RS-232C connected to the central processing unit to interface data from the outside, a decoder for decoding an address output from the central processing unit, and an address connected to and outputted from the decoder. A method of emulating a switching system having a memory and a personal communication device connected to the RS-232C: A command analysis step of storing a command input from the personal communication device in an internal buffer and analyzing the stored command; And performing an instruction for providing an address inputted according to the analyzed instruction to the decoder or for displaying the contents of an internal register on a display screen of the personal communication device. The method of claim 1, wherein the executing of the command comprises: writing a content of the address input to the decoder in response to a break command of the input command to generate an interrupt when the address is accessed. Steps, A trace instruction performing step of recording an address input to the decoder in response to the analysis result of the input instruction and setting a trace flag; And a display command execution step of outputting the contents of the input address or internal register on the display screen of the personal communication device in response to the analysis result display command of the input command.