stm8s tim1的pwm输出配置求分析

tangxz · 发表于 2012-12-9 13:06:27

芯片是stm8s105 下面是我的配置但是通道1没有输出哪位大侠帮我分析一下，最好贴一个能用的tim1的pwm输出寄存器程序，谢谢!
! TIM1->CCMR1 = TIM1->CCMR1 | 0x70; // Output mode PWM2.
    TIM1->CCER1 = TIM1->CCER1 | 0x03;   // CC polarity low,enable PWM output
    TIM1->CCMR1 |= 0x08; //输出比较1预装载使能
    TIM1->ARRH = 0x07; // 自动重载寄存器ARR=0x03e8=1000
    TIM1->ARRL = 0xd0; // 每记数500次产生一次中断，即1000ms

TIM1->CCR1H = 0x03;
TIM1->CCR1L = 0xe8;

    TIM1->SCRH = 0x00;
    TIM1->SCRL = 0x03;
    TIM1->CR1 |= 0x01;