ʾʹõԴ
MCO              PA8
BUTTON_USER      PB3

ʾḶ́
1ϵϵͳʱΪRCH48
2ʹRCLͨMCORCLʱӣ
3ðΪStopԴ
4MCU͹ģͨMCO۲RCLʱ
