verilogHDL语言实现的uart模块，内部包含波特率生成、uart收、uart发三个子模块，支持配置常规波特率、数据位、结束位和校验位，输入工作时钟125M，时钟不一样时需要修改波特率生成的代码-verilogHDL language of uart module contains an internal baud rate generator, uart receive, uart made three sub-module, configured to support conventi