Chip reset circuit, method and apparatus

Abstract

The invention discloses a chip reset circuit. The chip reset circuit comprises a first logic circuit, a second logic circuit, a time delay chip and an OR gate, the first logic circuit and the second logic circuit are respectively connected with the reset button and the substrate management controller, perform opposite logic operations on the level output by the reset button and the level output bythe reset pin of the substrate management controller, and respectively output a first level and a second level. The first level is delayed by the time delay chip and then is output to the OR gate, and the second level is directly output to the OR gate without delay. And the OR gate performs OR logic operation on the level output by the time delay chip and the second level to obtain a third level,and outputs the third level to the target chip. According to the circuit, the chip can be reset by any one of the two reset signals, and meanwhile, the problem that the chip is suspended due to the fact that any one of the two reset signals cannot be recovered to a high level after being pulled down is solved. The invention further discloses a chip reset method and apparatus, and the chip reset method and apparatus have the above technical effects.

Description

technical field [0001] The present application relates to the technical field of servers, and in particular to a chip reset circuit; and also relates to a chip reset method and a chip reset device. Background technique [0002] The server needs to use a variety of chips to achieve various product functions, and when the product is overheated or overvoltage. In case of problems such as software running errors, based on the protection of the server, it is necessary to reset the entire system of the server to restore it to a normal working state. Among them, the BMC (Baseboard Management Controller, Baseboard Management Controller) chip on the server is used to monitor the running status of the server, and the CPLD (Complex Programmable Logic Device, complex programmable logic device) chip is used to control the power-on and power-on sequence and logic of the server. [0003] Currently, there are two ways to reset the server system, one is hardware reset and the other is softw...

AI Technical Summary

Problems solved by technology

[0006] The purpose of this application is to provide a chip reset circuit, which can reset the chip with either of the two reset signals, and at the same time solve the problem of chip hanging caused by the inability of any one of the two reset signals to return to high level after being pulled low. dead question

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