C语言，利用两个8位定时器，实现两路PWM。两路PWM互不干扰。实现波形的渐强/渐弱。本代码是某大型代工企业的数码相机PWM模式下的检测驱动方式。可以用来驱动步进马达，最直观就在LED灯查看。-C language, the use of timers to achieve the two PWM. Two PWM without disturbing each other. Achieve waveform crescendo/diminuendo. This code is a large