【实验31】串口通讯\USART
..................\USART.c
..................\USART.hex
..................\USART.lnp
..................\USART.LST
..................\USART.M51
..................\USART.OBJ
..................\USART.Opt
..................\USART.plg
..................\USART.Uv2
..................\USART_Opt.Bak
..................\USART_Uv2.Bak
【实验31】串口通讯