DSP has become more and more important in electronic product design because of its fast operation rate, programmability, and flexible interface. It will be a developing trend to design digital signal system with DSP devices. But there is a common issue for most DSP engineers to develop DSP boards with high quality and low cost in the shortest time.
The main goal is to design a DSP minimum system board for this paper. After
introducing the basic characteristics of tms320vc5402 chip, this paper uses DSP technology and hardware designing knowledge to design the minimum DSP system, which includes DSP chip selection, power design, clock circuit design, reset circuit design, memory design, JTAG interface and etc.
This paper uses Protel 99 SE to design the circuit board in software. It firstly draws circuit schematic, and generates the network table according to the schematic. Then the high-speed PCB board of the minimum system is designed, and the detecting, manufacturing, installting and hardware debugging are accomplished.
Finally, the test programs are writed using the CCS software on the paltform of the high-speed DSP board designed by myself. After the debugging and testing of many times, the DSP minimum system board can run commonly, and can satisty the basic requirements of the signal processing.
Key words:DSP; TMS320VC5402; Minimum System; PCB; Protel 99 SE