采用VHDL语言编写的可编程逻辑器件FPGA串口处理程序，实用方便，适合FPGA初学者使用。-Programmable logic device FPGA using VHDL language serial port handler, practical and convenient for FPGA beginners.

CPLD的烧录程序，保证与单片机数据互通，提供串口引脚约束。-CPLD burning procedures to ensure that the data exchange with the microcontroller, providing serial pin constraints.