DSPF2812学习程序： 利用GP定时器1的比较器在产生一路PWM波，外设时钟25M,同时用全比较器产生3对PWM波，GP定时器1作全比较单元时基,适于初学者学习-DSPF2812 learning process: the use of GP Timer 1 compare the way in generating PWM wave devices, peripherals clock 25M, at the same time compared with full-generate th