这个是我的实训，题目是直流电机的控制，用STC12C5A60S2控制直流电机，通过内部的PWM口来控制电机的调速，硬件部分的电路设计不好，导致电机转速不快。具体实现的功能是电机正反转，调速，还有用红外对管测速-This is my training, entitled DC motor control, DC motor, STC12C5A60S2 control by the internal PWM port to control the motor speed, the circuit d

keil环境下的基于STC12C5A60S2的PWM超级实用函数，解压无密码，绝对好用！-Keil environment STC12C5A60S2 based on PWM super practical function, decompression WuMiMa, absolutely use!

通过STC12C5A60S2新增的PCA模块来产生占空比可以调节的方波。-By STC12C5A60S2 new PCA modules can be adjusted to produce the duty cycle square wave.