Firmware boot implementation method based on flash chip simulation connected to a master microcontroller unit (MCU) and slave MCU

A firmware boot implementation method based on Flash chip simulation, wherein the method at least comprises:

• when there are at least two MCUs, one of the MCUs is selected as a master MCU and each remaining MCU is as a slave MCU which is connected with the master MCU respectively, and the master MCU is connected with a Flash chip;
• when the master MCU is started, the master MCU is kept in a power-on state, the slave MCU is kept in a power-off state, and the master MCU is started by reading firmware data in the Flash chip;
• when the slave MCU is started, the master MCU controls the slave MCU to be powered on, and the slave MCU sends a request for reading the firmware data to the master MCU;
• the master MCU transmits the request for reading the firmware data from the slave MCU to the Flash chip, and the master MCU transmits the firmware data returned by the Flash chip to the slave MCU, so as to start the slave MCU;
• and
• wherein the firmware data of the master MCU and the slave MCU are pre-stored in the Flash chip, and the storage locations thereof in the Flash chip are different;
• the request for reading the firmware data comprises a storage addresses of the firmware data in the Flash chip.