基于FPGA的新型测试数据采录仪的电子设计

Electronic Design of New Type Test Data Acquisition System Based on FPGA

针对汽车的设计定型测试,设计一款新型数据采录仪;除精度、采集频率、数据容量等常规性能指标外,为满足体积微型化、数据保密性、零延时启动数据采集等特殊设计要求,选择ACTEL公司基于FLASH的模数信号混合处理FPGA芯片为控制单元,以Verilog HDL语言开发代码;设计结果表明,该新型数据采录仪不但满足了以上各项设计要求,运行稳定可靠,且易于升级和扩展采集能力,具有一定的实用性和推广价值。

This paper develops the electronic part of new type data acquisition system for automobiles＇ prototype test. Besides common specs of accuracy, speed and storage, more special requirements are needed, such as no delay power on, small bulk and security. For above sakes, ACTEL＇s mixed-signal FPGA is applied as the system core, and programmed by Verilog HDL. The result shows that all requirements are meet. and the system runs stably. At last but not least, it is easy for upgrading, and worthy of using abroad.