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针对飞机电气参数测试系统具有采样速率高,精度高,通道多且可变的特点,提出了用CPLD实现通道高速轮巡的新方法,使用Verilog HDL语言在MAX+PlusⅡ环境下对方案的功能进行了仿真,结果证明了方案的有效性,并且这一技术已成功应用于新型飞机电气参数测试系统。
Aiming at the characteristics of high test speed, high precision and large number of channels, the test system of aircraft electrical parameters is proposed. A new method of high speed round robin with CPLD is proposed. Using Verilog HDL language, the function of the program is implemented in MAX + Plus Ⅱ environment Simulation results show the effectiveness of the scheme, and the technology has been successfully applied to the new aircraft electrical parameter test system.