说明：  我想这个程序会有很多朋友会需要，是TI公司的TMS320F2812的MCBSP总线转UART功能的程序，本人亲自编写并通过实测，不适合大量数据通讯，可能会出现读取错误。希望热心的朋友能够继续改进。使用本代码还需要下载TI公司的2812SDK。
(I think this program will be a lot of friends will need, TI' s TMS320F2812' s MCBSP bus transfer UART function procedures, I personally prepared and adopted the measurement, not suitable for large amounts of data communications, read errors may occur. Hope that enthusiastic friends will continue to improve. Use of this code also need to download TI' s 2812SDK.)