˵:
ʵͻģʽP2PͨţϵʼƵģ飬ȻʱݣUSART1ϢUSART2ͨATָģ顣
	
ƽ̨˵:
STM32F103оƬ
	
ʵ:
USART1Ϣʵշ 
	
Ŀ¼˵
DRIVERļ´ģԴ롣
USERļ´mainļ
