实时高速LVDS串行数据采集系统的设计-Real-time high-speed LVDS serial data acquisition system

用PWM信号 控制直流电动机转速, 改变占空比D=t／T时，就可以得到不同的电机平均速度Vd，从而达到调速的目的。-PWM method to control DC motor speed， through the empty rate D=t/T, to realize the DC motor average speed changing.