这是avr单片机系列mega32的usart调试程序，实现基本的发送接受功能，本人自己编写可用，可用作子函数使用，使用串口调试助手实现-This is the avr mega32 microcontroller family usart debugging procedures, to achieve the basic function of sending and receiving, I have written is available, can be used as subrouti