Novel microprocessor circuit

Abstract

The invention provides a novel microprocessor circuit, which comprises a microprocessor, a super-capacitor, a watchdog chip, a resistor R1, a resistor R2, a resistor R3, a voltage-regulator diode and a triode. One end of the resistor R1 is respectively connected with one end of the resistor R2 and the cathode of the voltage-regulator diode, the other end of the resistor R2 is connected with the base electrode of the triode, the collector electrode of the triode is respectively connected with one end of the resistor R3 and the first input / output end of the microprocessor, and the other end of the resistor R3, the anode of the voltage-regulator diode and the cathode of the super-capacitor are all grounded. The anode of the super-capacitor, the other end of the resistor R1 and the emitting electrode of the triode are respectively connected with the system voltage end of the microprocessor. The voltage monitoring end of the watchdog chip is connected with the system voltage end of the microprocessor, the reset signal output end of the watchdog chip is connected with the reset end of the microprocessor, and the second input / output end of the microprocessor is connected with the dog-feeding end of the watchdog chip. The novel microprocessor circuit has the advantages of being scientific in design, easy to achieve and high in reliability.

Description

technical field [0001] The invention relates to a microprocessor circuit, in particular to a novel microprocessor circuit. Background technique [0002] Microprocessor technology has been widely used in various fields of production and life, from small toys to large automobiles, airplanes, and ships, you can find the shadow of microprocessors; as a widely used product, the Stability and reliability are undoubtedly very important, especially for large equipment, any control error may cause serious consequences. In various occasions where the microprocessor works, it is inevitable to be subject to various interferences; when it is severely disturbed, it can still ensure that the system returns to the normal working state. In the event of an unexpected power failure, the operating data of the system In order not to be damaged, this is a problem that needs special attention in the design of the microprocessor system; when a serious problem is encountered, whether the microproce...

AI Technical Summary

Problems solved by technology

[0003] The traditional system reset circuit includes RC reset circuit, voltage monitoring reset chip reset circuit, hardware watchdog reset circuit, etc.; the commonly used RC reset circuit has a single function and cannot solve the problem that the program needs to be reset when the program is severely disturbed and the program runs away. Problem: The voltage monitoring and reset chip can monitor the system voltage, and if it is lower than a certain voltage value, it will send a reset signal to the microprocessor to reset the system; the chip with the voltage monitoring and feeding dog function can solve the problem of system power-off reset and program running. fly system reset

For the above applications, when the system is powered off, the reset of the system is completed instantly, and the system is not informed in advance that it will be reset. Affect the normal operation of the system, or at the moment when the system is about to be reset, the microprocessor is writing data to some memory, and the data is written incorrectly due to the unexpected reset of the system, resulting in abnormal operation of the system

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