关于AVR中串口的应用编程，这里的avr单片机是atmel128系列的，编程语言为C语言，文件格式为rar-Application programming on AVR EEPROM, where AVR chip is the atmel128 series, the programming language for the C language, the file format for PDF

学习NEC单片机C语言编程很好的书籍(PDF格式)-Learning NEC microcontroller C language programming a good book (PDF format)