Question

stm8的TIM1输出PWM怎么设置

Answer 1

TIM1->EGR=0x01;//初始化TIM1 TIM1时基初始化
TIM1->EGR|=0x20;//重新初始化TIM1
TIM1->PSCRH=0; //预分频 设置PWM频率
TIM1->PSCRL=0;
TIM1->ARRH=0x0F; //设定重装载值
TIM1->ARRL=0x9F;
TIM1->CR1=0x80;//边沿对齐,向上计数,带缓冲
TIM1->RCR=0x01;//重复计数器

TIM1->CCMR2=0x68;//PWM模式1 通道2PWM输出
TIM1->CCER1=0x10;//高电平有效，开启输出
TIM1->CCR2H=1;//设置占空比
TIM1->CCR2L=0;

TIM1->BKR=0x80;//主使能
TIM1->CR1|=0x01;//计数使能