单片机看门狗电路 上述电路中,TPS3823输出定时溢出信号给Reset端。程序段中,CPU要不断地通过I/O口输出喂狗信号,使看门狗计数器清零。-MCU watchdog circuit in the circuit above the TPS3823 overflow signal output timing to Reset.In the procedures section, the CPU will continuously through the I/O port output fe