FPGA在信号测量中的应用

Application of FPGA in Signal Measurement

在电信号测量领域,逻辑信号的测量十分重要。分析FPGA在逻辑分析仪测量高速信号中的应用。在FPGA内部实现对高速信号采样和存储,采样结束后,单片机读取数据,进行运算和显示。通过测试,用该方法制作的实物可以测量5 MHz的逻辑信号。设计利用FPGA高速运行的优势弥补单片机在测量高速信号中的不足。

Logic signal measuring is very important in the field of electric signal measurement. By analyzing the application of FPGA in measuring signal using logic analyzer,implementing highspeed signal sampling and storing in FPGA. When the sampling process is finish, MCU reads the data and processes the data and finally displays the result on LCD monitor. The PCB product can be made,and it can measure 5MHz logic signal. The design takes full advantage of FPGACs highspeed processing. capability to make up the deficiency of MCU in measuring high - frequency signal.