Communication between TMS320DM642 and PC/104+ in Traffic Video Supervisory System

The characteristics of the media processor TI's TMS320DM642 HPI are described.The structural theory of PCI bridge—PCI2040 is introduced.A communication connection design between TMS320DM642 and PC/104+ is put forward,which is realized with PCI2040.This solution makes full use of the Host Port Interface of DSP to realize a high data transfer rate between DSP and PC/104+and enables the PC/104+ computer to read/write any memory unit of DSP in a real-time way.A design solution of traffic video supervisory system is given and the programming of the communication process is explained.