Design of communication interface between DSP and PC

Generaly,DSP and PC with PLC compose a modem digital hardware system.Although DSP is a powerful digital signal processor,it has disadvantage of short in control capacity.This disadvantage can be solved by the system composed with HPI and PC.So,the key is to realize the data communication between PC and HPI.Using HPI interface made the data exchamge easy between PC and DSP.This paper proposed a flexible,simple way that suits any applicable system including HPI and DSP.It provided a new datum share and deliver method for researchers.Experimental results show that the communication between HPI and PC parallel interface is valid and stable.