开机复位后，LED0到LED7全部点亮，所有持续2S后熄灭，然后等待按键，按0键LED7以0.8S周期闪烁，按1键LEDPort以1S周期闪烁。-Boot reduction, LED0 to LED7 all light, all LEDPort lasts 2 S went after, then wait for key, according to LED7 0 key to 0.8 S flashing cycle, according to 1 to 1 S key LEDPort flashing cycle.