JPS62175841A - Drive tracing device for microprocessor - Google Patents

Abstract

PURPOSE:To analyze easily the cause of runaway of a microprocessor by supplying the ambient temperature/humidity information on the microprocessor to a tracing device. CONSTITUTION:A tracing device 5 fetches a command signal 2, an address signal 3 and a data signal 4 of a microprocessor 1 to write them into a trace memory in the device 5. Furthermore the the device 5 measures continuously the environmental conditions of the processor 1 by a temperature/humidity sensor 6 and converts the temperature/humidity change of the processor 1 into he digital data through an A/D converter 7 to supply it to the device 5. The device 5 stores this digital data in its trace memory.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a running trace device for a microprocessor.

[Conventional technology]

FIG. 2 is a block diagram showing a conventional microprocessor running trace device disclosed in, for example, Japanese Patent Publication No. 59-200358.
Various runaway states of the microprocessor (runaway occurrence time, temperature/humidity values, test monitors (T, M
) is required as runaway analysis data, etc. In the figure, 1 is the target microprocessor (device with a built-in microprocessor).
, 2 is a command signal of the microprocessor 1, 3 is an address signal, 4 is a data signal, and 5 is a trace device.

Next, the operation will be explained. First, the address signal 3. output from the microprocessor 1. The data signal 4 is taken in by the trace device 5 in synchronization with the command signal 2 and written into the trace memory within the trace device 5. The information in the trace memory is disassembled and displayed on the display section of the trace device 5 according to the running status of the microprocessor 1.

[Problem that the invention seeks to solve]

Since the conventional microprocessor run 1 to race device is configured as described above, it is possible to analyze the run when the microprocessor runs abnormally (runaway) while running, but it is difficult to analyze the cause of the abnormal run. be impossible.

In addition, the running speed of a microprocessor varies depending on the surrounding temperature and humidity conditions, and when collecting data from a microprocessor using a conventional tracing device, there were problems such as the surrounding temperature and humidity conditions being unclear. - This invention was made to solve the above-mentioned problems, and by tracing the temperature and humidity information around the microprocessor together with the information in the conventional trace memory, the conditions at the time of data acquisition of the microprocessor can be determined. Another object of the present invention is to obtain a running trace device for a microprocessor that can analyze changes in temperature and humidity, which are one of the causes of microprocessor runaway.

[Means for solving problems]

The microprocessor running trace device according to the present invention measures and inputs ambient temperature and humidity information during driving into a conventional trace device, and traces the information together with conventional trace information.

[Effect]

The tracing device in this invention measures temperature and humidity data of the surroundings where a target microprocessor (a device with a built-in microprocessor) is placed while the microprocessor is running and inputs the data to the tracing device as information. .

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, the same parts as in FIG. 2 are shown with the same symbols. In FIG.
Analog/digital information from humidity sensor 6 (A
/D) Converter 8 is temperature/humidity information.

Next, the operation will be explained. First, the tracing device 5
In addition to conventional trace information, the environmental conditions around the microprocessor 1 are continuously measured by the temperature/humidity sensor 6 to detect changes in the temperature/humidity of the microprocessor 1.
The data is converted into digital data by the A/D converter 7, input to the trace device 5, and stored in the trace memory within the trace device.

〔Effect of the invention〕

As described above, according to the present invention, the environmental conditions around the microprocessor, that is, temperature and humidity information are measured and the A/D
Now that the microprocessor is converted and configured to trace to a trace device, normal data collection (monitoring) of the microprocessor
At the same time, the surrounding environment conditions can be constantly input to the trace device and displayed, and the cause of microprocessor runaway in the event of microprocessor abnormality can be more clearly analyzed.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a microprocessor tracing device according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional tracing device. In the figure, 1 is a microprocessor, 2 is a command signal, 3 is an address signal, and 4 is a data signal. 5 is a trace device, 6 is a temperature/humidity sensor, 7 is an A/D
A converter 8 is temperature/humidity information. (2 others)

Claims (1)

[Claims] In a running trace device for a microprocessor that traces operational information of a device incorporating a microprocessor while it is running using an output signal from the microprocessor, the temperature and humidity conditions around the microprocessor are measured. A running trace device for a microprocessor, characterized in that a temperature/humidity sensor measures the output signal, and an A/D converter converts the output signal into a digital signal, and then traces the output signal together with the running information of the microprocessor. .