本帖最后由 liu510706140 于 2021-5-12 17:47 编辑
多路PWM输出的范例没有找到修改占空比的函数，新建修改占空比的函数，多次调试测试可行。
主函数如下，程序看附件
- int main(void)
- {
- /* Sys Init */
- Sys_Config();
- while (1)
- {
- IWDG_ReloadCounter();//喂狗
- PWM_TMR1_Channel1(Key_count*100);
- PWM_TMR1_Channel2(Key_count*100);
- PWM_TMR1_Channel3(Key_count*100);
- PWM_TMR1_Channel4(Key_count*100);
- PWM_TMR3_Channel1(Key_count*100);
- PWM_TMR3_Channel2(Key_count*100);
- PWM_TMR3_Channel3(Key_count*100);
- PWM_TMR3_Channel4(Key_count*100);
- delay_ms(1000);//延时1秒
- Key_count++;
- if(Key_count>10)Key_count=0;
- }
- }
- //输出周期=1000 占空比=500-1=50%
- void PWM_TMR1_Channel1(unsigned short int PulseValue)
- {
- TMR1->CC1 = PulseValue;
- }
- void PWM_TMR1_Channel2(unsigned short int PulseValue)
- {
- TMR1->CC2 = PulseValue;
- }
- void PWM_TMR1_Channel3(unsigned short int PulseValue)
- {
- TMR1->CC3 = PulseValue;
- }
- void PWM_TMR1_Channel4(unsigned short int PulseValue)
- {
- TMR1->CC4 = PulseValue;
- }
- void PWM_TMR3_Channel1(unsigned short int PulseValue)
- {
- TMR3->CC1 = PulseValue;
- }
- void PWM_TMR3_Channel2(unsigned short int PulseValue)
- {
- TMR3->CC2 = PulseValue;
- }
- void PWM_TMR3_Channel3(unsigned short int PulseValue)
- {
- TMR3->CC3 = PulseValue;
- }
- void PWM_TMR3_Channel4(unsigned short int PulseValue)
- {
- TMR3->CC4 = PulseValue;
- }
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