Method and circuit structure for controlling abnormal instruction output

Abstract

The invention discloses a method and a circuit structure for controlling abnormal instruction output. The circuit structure comprises a reset circuit, a partition time sequence power supply circuit, an instruction generation latch circuit and a redundant signal control instruction driving circuit. A redundant latch circuit is adopted as an instruction generation circuit, a plurality of latches respectively generate pulse control signals to form multi-pulse control signals, and instructions can be output only when the corresponding multi-pulse control signals are valid; an independent power supply unit supplies power to an instruction generation circuit and an instruction driving circuit separately, the power supply of the instruction driving circuit is controlled by a reset signal, the instruction driving circuit is powered on after the instruction generation circuit is powered on, and abnormal instruction output in the power-on process is forbidden; the voltage of the subarea power supply is monitored in real time, when the voltage is lower than a normal power supply range, a reset signal is generated to power off the instruction driving circuit, the instruction driving circuit ispowered off in the process that voltage abnormal fluctuation is lower than a normal value or power is off, and abnormal instruction output is avoided. The reliability of instruction output can be effectively improved.

Description

technical field [0001] The invention relates to computer technology, in particular to a method and circuit structure for controlling the output of abnormal instructions. Background technique [0002] With the strong support of the state, my country has achieved rapid development in the aerospace field, such as the "Shenzhou" spacecraft, "Tiangong", "Beidou" and other missions. These spacecraft and satellites need to be equipped with many expensive aerospace computer equipment. Due to space Due to harsh application environments such as vacuum, large temperature difference between day and night, and high-energy ion irradiation, coupled with the fact that on-orbit maintenance cannot be performed, aerospace computers have very high reliability and are extremely expensive. Other equipment plays an important role in power-on start-up and power-off stop, which is related to the success or failure of spacecraft missions and significant economic benefits. [0003] The circuit structur...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and a circuit structure for controlling the output of abnormal commands to avoid the output of abnormal commands and effectively improve reliability for the problem of insufficient reliability of computer command generation and output in the above-mentioned prior art

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