ʾʹõԴ
LED          ------ PB1
I2C1_SCL     ------ PB3
I2C1_SDA     ------ PB4


ʾḶ́
1ϵϵͳʱӣRCHΪʱԴΪ48M
2ʼLEDGPIOʼ״̬Ϊ𣬳ʼI2C1GPIO
3ʼI2C1ʹI2C1
4LED
5ȴַƥ䣬8ֽݣֹͣλֹͣλ־
6ȴַƥ䣬8ֽݣֹͣλֹͣλ־NACKF־

ע⣺
LEDʱٿͨš

