C8051单片机驱动步进电机转速与晶振，中断设置数计算公式-C8051 MCU to drive a stepper motor speed and crystal, the number of interrupts set formula .....

AGV电机调速的程序 实现了电机速度的控制，首先由USB控制器（Propo）向上位机发出信号，上位机将控制器的数字指令转变为0-3000rpm的转速目标值。通过串口转发给arm单片机，ARM单片机接收上位机的目标值及电机反馈回来的转数，利用PID控制器计算出0-1023的控制指令，传给D/A转换器，它将数字信号转换为0～5V的模拟信号，模拟信号经过电源隔离模块后传送到驱动模块对电机进行调速。此外，电机再将脉冲信号返回给微处理器。-Procedures of the AGV motor speed

可以利用CAP捕获输入引脚获得过零点，也可以利用捕获功能计算得到交流风扇的当前转速。-Can use the CAP to capture input pin for zero-crossing, the capture function can also be used to calculate the current speed AC fan.

T method implemented by calculating 实现用T法对电机转速的计算，主要用于代速运行时，提高转速计算精度，从而提升电机运行平稳性-T method implemented by calculating the speed of the motor, mainly for generation of run-time speed, improve speed accuracy, thereby enhancing the motor running smooth

使用DSP捕获光电编码器的输出来计算电机的转速和频率(The use of DSP to capture the transmission of the photoelectric encoder to calculate the speed and frequency of the motor)