The reset and BDM circuits mainly use the Background was Debugging Mode (BDM) function of the single-chip microcomputer, which does not require an emulator. It can realize all hardware breakpoints, conditional breakpoints, online debugging, and bus debugging, and write the program on the bus for the single-chip microcomputer. Debugging FlexRay provides convenience. Independent bus interface module The independent bus interface module mainly connects the single-chip microcomputer with external sensors, actuators, etc., and the independent bus interface circuit mainly realizes the driving and bus signal matching functions.