AVRGCC编写的很好用的串口通讯源程序-AVRGCC prepared a very good source to use the serial communication

本人用AVR mega32写的一个关于输出32路PWM的程序，其中有UART，PWM，TIMER，spi，Flash读写，等等模块可供参考。程序用Studio4 + GCC编写-I used AVR mega32 write a PWM on the output 32 of the procedures, including UART, PWM, TIMER, spi, Flash read and write, and so on