Introduction - If you have any usage issues, please Google them yourself
State of Texas Instruments (TI) of TMS320VC54XX series DSP chip and PC machines to achieve asynchronous communication there are two methods: the first is the use of general-purpose I/O signal XF and BIO as a serial port to send and receive signals, with software-by-bit send and receive data, or software asynchronous communication method, which take up a lot of CPU time, therefore, can not be too busy in the DSP, real-time nature of the circumstances do not ask for much the second is through the expansion of asynchronous communication chip to achieve high-speed serial communication, this article is that this method of choice.