This programme is to control DC motor in a certain speed using PWM. The target speed is \"r\", it is the speed in 1s. The sample rate is 0.1s, so the actual speed target is \"rc\"=r/10. The \"r\" and \"rc\" are integer, and the range of \"r\" i

利用DSP的PWM1和PWM2,然后经过了两级放大控制直流电机，若要改变电机转速或转向,可在DSP28_EV.c文件里按相应注释修改，即实现PWM波来控制电机。-Using DSP-PWM1 and PWM2, and then amplified through a two DC motor control, to change the motor speed, or steering, can DSP28_EV.c file comments by corresponding changes