STM32F103RCT6同步测量两路方波信号，并计算信号的频率、相位差以及一路的占空比。希望帮助有需要的同学。-STM32F103RCT6 simultaneous measurement of two square-wave signal and calculates the frequency, phase and all the way to the duty cycle of the signal. We want to help needy students.