资 源 简 介
（1）频率测试功能：测频范围0.1H~200H。
测试精度：恒为百万分之一。
（2）脉宽测试功能：范围0.1us~1s，精度0.01us。
（3）占空比测试功能。-(1) the frequency of test functions: the scope of testing frequency 0.1H ~ 200H. Test accuracy: Constant for the parts per million. (2) pulse-width test functions: the scope of 0.1us ~ 1s, the accuracy of 0.01us. (3) duty cycle testing.
