再制作PCB电路板,焊接电路,进行硬件电路的调试,验证其功能。设计中采用了模块化设计方法,采用适当的放大和整形,提高了整个测量频率的范围和系统的测量精度。 This topic has designed a simple digital frequency meter, it mainly is take the trigger and the counter as the core pure hardware design, by the ...