stm32 pwm输出

代码说明：

  TM32的高级定时器TIM1可以产生互补的PWM，并且可以通过相关寄存器的设置使能或关闭PWM的输出。在编写BLDC的驱动程序时，本人利用TIM1的channel1,2生成了三路互补的PWM波形，定时器驱动程序(The advanced timer TIM1 of TM32 can generate complementary PWM, and it can enable or close the output of PWM through the setting of related registers. When writing BLDC driver, I use TIM1 channel1,2 to generate three complementary PWM waveforms, timer driver.)