Application of SOPC technology in low temperature target weak signal acquisition device

The paper describes an original design project of low temperature target weak signal acquisition device based on SOPC technology. This design integrates multiple function module on a low cost and high density FPGA, belongs to Cyclone family, which is developed with embedded NiosII CPU by Altera corporation. It improves the flexibility of design, reliability of signal acquisition and speed rate of fetching data. The realization of signal acquisition device based on SOPC technology hardware and software is presented, and particularly discusses how to customize Avalon peripheral.