cc2530 timer1 配置输出四路PWM，经过测试可以用的。四路分别是：P0_6,P0_7,P1_0,P1_2。-cc2530 timer1 configure the output four PWM, tested can be used. Four are: P0_6, P0_7, P1_0, P1_2.

初始化PWM定时器0,按键及参数配置,步进电机运行模式控制等-Initialization PWM timer 0, key and parameter configuration, stepper motor operation mode control, etc.

基于6818，内核配置pwm控制器驱动和加载一个自己的pwm驱动模块-Based on 6818, the kernel configure the PWM controller to drive and load one of its own PWM driver modules