KR920006847A - Processor Diagnosis Device and Diagnosis Method - Google Patents

Abstract

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Description

Fixed Diagnostic Device of Processor and Diagnostic Method

As this is a public information case, the full text was not included.

1 is a block diagram of a microprocessor including a fault diagnosis apparatus for a processor according to a first embodiment of the present invention;

5 is a flowchart of the self-diagnosis execution in the microprocessor shown in FIG.

8 is a flowchart showing the execution of each diagnostic vector in the microprocessor shown in FIG.

Claims (20)

State transition control means for controlling the transition of the operating state of the process so that the normal operation state for executing the normal processing operation and the self-diagnosis state for executing the self-diagnosis are alternated; A judging means for judging the interruption status of the self-diagnosis when the self-diagnosis is interrupted when the transition is controlled to the operation state, and the transition of the processor from the normal operation state to the self-diagnosis state by the state transition means. And a means for executing the self-diagnosis immediately while the processor is in the self-diagnostic state by using the interrupt status of the self-diagnosis determined by the discriminating means, to execute self-diagnosis for detecting processor failure. A failure diagnosis apparatus for a processor, characterized in that. The fixed diagnostic apparatus of claim 1, wherein the transition control means controls the processor according to an externally applied interrupt command signal to transition from a self-diagnosis state to a normal operation state. The fault diagnosis apparatus of claim 1, wherein the transition control means controls the process according to an externally applied self-diagnosis start command signal to transition from the normal operation state to the self-diagnosis state. The self-diagnostic method according to claim 1, wherein the self-diagnosis is sequentially executed by the execution means and divided into a plurality of unit self-diagnosis having distinct labels, and the discriminating means is immediately before the processor is in the self-diagnosis state. During the execution of the interrupted self-diagnosis, the discrimination label of the unit self-diagnosis is stored to determine the interrupt status of the self-diagnosis, wherein the execution means is executed when the processor is transitioned from the normal operation state to the self-diagnosis state by the three transition control means. And diagnosing the execution of the self-diagnosis from the unit self-diagnosis having the discriminating label stored by the discriminating means. 2. The self-diagnosis interrupt according to claim 1, wherein the discriminating means stores the intermediate self-diagnosis state information for self-diagnosis at the interruption point of the self-diagnosis interrupted in the immediately preceding process when the processor is in the self-diagnostic state. Status is determined, and the execution means uses the intermediate magnetic diagnostic status information stored by the determination means when the processor is controlled from the normal operating state to the self-diagnosis state by the state transition control means to perform the self-diagnosis from the interrupt point. A failure diagnosis apparatus for a processor, characterized by initiating execution. The fault diagnosis apparatus according to claim 1, further comprising: notification means for notifying a fault of the processor when a fault is detected by self-diagnosis executed by the execution means. The fault diagnosis apparatus according to claim 1, further comprising a stop means for stopping the operation of the processor when a fault is detected by the self-diagnosis executed by the execution means. The fault diagnosis apparatus according to claim 1, wherein a plurality of diagnosis target elements in the processor are separated and diagnosed. 9. A failure diagnosis apparatus according to claim 8, wherein said execution means is configured to execute separate diagnosis sequentially. The fault diagnosis apparatus according to claim 8, wherein said execution means executes said separate diagnosis in parallel. A state transition control step of controlling an operation state transition of the processor such that the normal operation state for executing the normal processing operation and the self-diagnosis state for executing the self-diagnosis are alternated; At the time of self-diagnosis when the self-diagnosis is interrupted, and when the processor controls the transition from the normal operation state to the self-diagnosis state, the interrupt state of the self-diagnosis And executing the self-diagnosis immediately while the processor is in the self-diagnostic state by using the self-diagnostic method for detecting a failure of the processor. 12. The method of claim 11, wherein in the transition control step, the processor controls the transition from a self-diagnosis state to a normal operation state according to an interrupt command signal externally applied. 12. The method of claim 11, wherein in the transition control, the processor controls the transition from the normal operation state to the self-diagnosis state according to an externally applied self-diagnosis start command signal. 12. The self-diagnosis method according to claim 11, wherein the self-diagnosis is sequentially executed in the execution step and divided into a plurality of unit self-diagnosis having distinct labels, and the interrupt status of the self-diagnosis is immediately when the processor is in the self-diagnosis state. During the execution of the self-interrupted self-diagnosis immediately before, the discriminating step of the unit self-diagnosis is stored in the discriminating step. A method for diagnosing a failure of a processor, characterized by starting from a unit self-diagnosis having a distinct label stored in a discriminating step. 12. The method of claim 11, wherein the interruption status of the self-diagnosis is determined by storing intermediate self-diagnosis status information on the self-diagnosis at the interruption point of the self-diagnosis interrupted in the immediately preceding process when the processor is in the self-diagnosis state. And the execution of the self-diagnosis in the execution step is started from the interrupt point by using the intermediate self-diagnosis status information stored in the determination step when the processor is controlled from the self-diagnosis state from the normal operation state. How to troubleshoot one processor. 12. The failure diagnosis method of claim 11, further comprising a notification step of notifying a failure of the processor when a failure is detected by the self-diagnosis executed in the execution step. 12. The method of claim 11, further comprising a fixing step of stopping the operation of the processor when a failure is detected by the self-diagnosis executed in the executing step. 12. The method of claim 11, wherein the plurality of diagnostic target elements in the processor are separated and diagnosed. 19. The method of claim 18, wherein the separate diagnostics are executed sequentially in the execution step. 19. The method of claim 18, wherein said separate diagnosis is performed in parallel in said executing step. ※ Note: The disclosure is based on the initial application.