Reset circuit for automatically resetting an MCU upon turning on a power and the method thereof

摘要

A reset circuit and the method thereof for automatically resetting a microcontroller unit upon turning on the power that is applied to an electronic device is disclosed, which comprises an EEPROM, an MCU, a reset circuit and an AND gate. As the electronic device is plugged into the power outlet, the MCU reads the flag state recorded within the EEPROM and adjusts it to Low. Every time the power of the electronic device is turned on by pressing the power button, the MCU will automatically set a GPIO pin to output a trigger signal for triggering the reset pin of the MCU, allowing the MCU to initiate the reset operation by restarting and resetting the settings of both the hardware and software components within the MCU.