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提出了一种基于CPLD、通过电脑串口对多个DSP进行程序远程下载的系统。介绍了CPLD与上位机和底层DSP之间的接口电路,详细阐述了CPLD的内部原理图以及实现其内部各个功能模块的程序,给出了仿真的时序波形,并应用Visual Basic 6.0编写了上层界面,最终完成了多个DSP的程序远程受控下载。
A system based on CPLD for remote downloading of multiple DSPs through a computer serial port is proposed. The interface circuit between CPLD and host computer and the underlying DSP is introduced. The internal principle of CPLD and the program of each function module are described in detail. The timing waveform of the simulation is given, and the upper interface , The final completion of the process of multiple DSP remote controlled download.