说明：  单片机控制的电动自行车驱动系统 电动车双闭环程序，采用双闭环方式控制电机，以得到最好的zh转速性能，并且可以 //限制电机的最大电流。本应用程序用到两个CCP部件，其中CCP1用于PWM输出，以控 //制电机电压；CCP2用于触发AD，定时器TMR2、TMR1，INT中断，RB口电平变化中断， //看门狗以及6个通用I/O口
(Electric car electric bicycle drive system microprocessor controlled closed-loop procedures, using dual closed-loop control of the motor, in order to get the best zh speed performance, and// limit the maximum motor current. This application used two parts of the CCP, which CCP1 for PWM output to control// system of the motor voltage the CCP2 used to trigger the AD, the timer TMR2, TMR1, the INT interrupt, the RB port change interrupt// see door dog as well as six general purpose I/O port)