The design of PCM tester using FPGA

The PCM tester receives external data from RS-422 bus or ARMC429 bus, processes it and passes it to the memory of a personal computer according to the required format. This paper describes the function and architecture of the PCM tester in detail, and gives an approach to implement it by Xilinx FPGA. Besides, author draws some conclusions about bow to make good use of the feature of FPGA to improve a design.