ʾʹõԴ
MCO              PA8
BUTTON_USER      PA12

ʾḶ́
1ϵϵͳʱΪRCH72
2ʹRCLͨMCORCLʱӣ
3ðΪStopԴ
4MCU͹ģͨMCO۲RCLʱ
