Reset circuit is a kind of circuit

Reset circuit is a kind of circuit to make CPU return to the initial state. MCU system can operate normally, and reset circuit cannot be obtained. Design of STM32 single chip microcomputerReset signal when the low level reset, that is, in the STM32 MCU reset, reset pins continue to maintain low level, reset circuit has two functions, one is power onThe purpose of power on reset is to make the CPU in a stable state, to avoid the circuit disorder caused by the random state of each part of the CPU when power on, and then start the normal operationI work a lot. The second is to make the system return to normal from the error state. In some cases, the system is abnormal and cannot work normally, and it enters a kind of dead cycleOr stuck state, reset circuit can make the system jump out of the wrong state, restart operation, avoid system crash