1. Brown-Out Reset 掉电复位,或电源电压跌落复位, 当输入电压VCC跌到某一门限时芯片复位 The MCU is reset when the supply voltage VCC is below the Brown-Out Reset threshold voltage and the Brown-out Detector is enabled. The Brown-out threshold voltage is programmable. 2. Totem-pole 推拉输出电路 3. IAR调试出现The
