JPH03181290A - Central controller - Google Patents

Abstract

PURPOSE:To check the processing process of a processor by providing a means storing processing process of a processor, a means setting the condition storing the processing process and a means outputting storage information to an exter nal terminal equipment to a main processor section controlling exchange processing. CONSTITUTION:A microprocessor 2 writes identification information as to an address and a data of an accessed storage device 5 or an external terminal controller 6, as to whether data read or write from the storage device 5 and data read and write from the external terminal controller 6 to a trace memory 3 by a start from a control section 4 at any time. The control section 4 applies write at all times. At the access from the storage device 5 and the external terminal controller 6, the write to the trace memory 3 after the occurrence of a fault such as disabled access or defective data is stopped and the processing process of the microprocessor 2 up to the occurrence of a fault is stored in the trace memory 3.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an electronic exchange using a storage program control method.
In particular, it relates to a central control unit that controls exchange processing.

[Conventional technology]

Conventionally, there was no central control unit with a processor bus trace buffer memory installed in the main processor section, and the only way to know the processing progress of the processor was to install an external in-circuit emulator, which is a software development tool dedicated to each microprocessor. are doing.

[Problem to be solved by the invention]

As mentioned above, if you attach an external in-circuit emulator, which is a software development tool dedicated to each microprocessor, to know the processing progress of the processor, there is a high risk of stopping the operating system. It is extremely difficult to investigate the progress of the process.

[Means to solve the problem]

The central control device of the present invention includes means for accumulating the processing progress of the processor in a main processor unit that controls exchange processing, means for setting conditions for accumulating the processing progress, and outputting the accumulated information to an external terminal. and means.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Referring to FIG. 1 illustrating one embodiment of the present invention, an electronic exchange has a microprocessor (μp) 2 that controls the exchange process.
．． Trace memory (TMEM) that stores the processing progress of the microprocessor 2;3. Control unit for setting the storage area (
CNT) 4 and a storage device (MEM) that stores the programs and data of the central controller 1.
5, an external terminal (TERM>7) such as a maintenance console that registers and changes various data of the electronic exchange and outputs the contents of the trace memory 3, and an external terminal control device (I
OC>6 and a time division switch (TSW) 8 that controls the exchange connection path.

In this flI command, the microprocessor 2 identifies the address and data of the accessed storage device 5 or external terminal control device 6 and whether data is read and written from the storage device 5 or data is read and written from the external terminal control device 6. Information is written into the trace memory 3 at any time upon activation from the control unit 4.

The control unit 4 constantly writes data, and when accessed from the storage device 5 and the external terminal control unit W6, stops writing to the trace memory 3 after a fault occurs such as inaccessibility or data failure, and stops writing to the trace memory 3 until the fault occurs. 2 is stored in the trace memory 3. Further, the storage start and end addresses inputted from the external terminal 7 are held in the control unit 4, the processing address of the microprocessor 2 is monitored, and only the processing progress within the designated storage area is stored in the trace memory 3. In response to input from the external terminal 7, the contents of the trace memory 3 are displayed on the display section of the external terminal 7 or output to a printer.

〔Effect of the invention〕

As explained above, according to the present invention, the main processor unit that controls the replacement process includes a means for accumulating the processing progress of the processor, a means for setting conditions for accumulating the process progress, and an external terminal such as a maintenance console. By providing a means for outputting accumulated information, it is possible to know the processing progress of the processor without using an in-circuit emulator, which is a software development tool, so access to the storage device and external terminal control device can be maintained even during operation. This makes it easy to measure the ratio of failures, and when a failure occurs, it becomes easy to investigate the cause of the failure.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention. 1... Central control unit (CPU), 2... Microprocessor (μp), 3... Trace memory (TMEM)
), 4...control unit (CNT), 5...storage device (M
EM), 6... External terminal control device (IOC), 7...
・External terminal (TERM), 8...Time division switch (
TSW).

Claims (1)

[Claims] The main processor unit that controls the exchange process is equipped with means for accumulating the processing progress of the processor, means for setting conditions for accumulating the process progress, and means for outputting the accumulated information to an external terminal. Central control unit.