基于VHDL（verilog）语言的UART的设计与实现。全面模仿AVR的UART功能，与AVR直接实现接口调试。资料全面完整。-Based on VHDL (verilog) Language Design and Implementation of UART. UART fully mimic the function of AVR, and AVR debugging interface directly to achieve. Overall integrity of the infor