linux_uart2_rs422

代码说明：

说明：  本程序主要是针对linux 下s3c2410下，串口驱动进行开发，针对高速率的串口数据采集，以DMA方式读取串口通信数据，并提供串口RS422的通信协议定义。次程序在2410上以成功测试过。(This procedure is mainly directed against s3c2410 under linux, the serial driver developed for high-speed serial data acquisition, DMA mode to read the serial communication of data and provides RS422 serial communication protocol definition. Meeting in 2410 on the procedure to have been successfully tested.)