STM32 输出8路0-20K独立可调频率脉冲，排除网上其他单纯通过比较输出模式输出PWM信号有死区（盲区：低频率无法输出区域）的问题，本代码0-5K误差为1,20K时，误差为33.3，用到的朋友可以看下。-The STM32 output 8-way 0-20K independently adjustable frequency pulses to exclude online other simply by the compare output mode output PWM signal dead zone (blind spot: the low frequency can not be output area), the code error for 1,20 K in 0-5K error of 33.3, friends used to look.