GD32f310c8 Timre15 配置问题

只看该作者 · 2024-9-14 20:51

我是自学的新手，那位老师解答哈GD32f310c8 Timre15 配置单通道PWM配置哪里有问题指点哈谢谢

void timer_config(void)
{

      // PB8 具有 TIMER15 的通道0 功能
      timer_parameter_struct Timer_ParamType;
      timer_oc_parameter_struct Timer_OC_ParamType;

      rcu_periph_clock_enable(RCU_GPIOB);//启用外设时钟功能
      rcu_periph_clock_enable(RCU_TIMER15);


      gpio_af_set(GPIOB,GPIO_AF_2,GPIO_PIN_8);//端口复用为TIMER15_CH0模式

      gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_8);
  gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_8);
  gpio_bit_set(GPIOB, GPIO_PIN_8);


      timer_internal_clock_config(TIMER15);
      timer_deinit(TIMER15);

      timer_channel_output_mode_config(TIMER15,TIMER_CH_0,TIMER_OC_MODE_PWM0);
      timer_auto_reload_shadow_enable(TIMER15);

      Timer_OC_ParamType.ocidlestate = TIMER_OC_IDLE_STATE_HIGH;//空闲时通道输出极性
      Timer_OC_ParamType.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;//空闲时互补通道输出极性
      Timer_OC_ParamType.ocnpolarity = TIMER_OCN_POLARITY_HIGH;//互补通道输出极性
      Timer_OC_ParamType.ocpolarity = TIMER_OC_POLARITY_HIGH;//通道输出极性
      Timer_OC_ParamType.outputnstate = TIMER_CCXN_DISABLE;//禁用互补通道输出
      Timer_OC_ParamType.outputstate = TIMER_CCX_ENABLE;//使能通道输出
      timer_channel_output_config(TIMER15,TIMER_CH_0,&Timer_OC_ParamType);

      Timer_ParamType.alignedmode = TIMER_COUNTER_EDGE;//配置为边沿对其模式
      Timer_ParamType.clockdivision = TIMER_CKDIV_DIV2;//配置死区时间和采样时钟（DTS）之间的分频系数
      Timer_ParamType.counterdirection = TIMER_COUNTER_UP;//配置计数方向为向上计数
      Timer_ParamType.period = 1000-1;//周期
      Timer_ParamType.prescaler = 72-1;//预分频
      Timer_ParamType.repetitioncounter = 1;
      timer_init(TIMER15,&Timer_ParamType);

      timer_channel_output_pulse_value_config(TIMER15, TIMER_CH_0, 500-1);//比较寄存器的数值

      timer_enable(TIMER15);
}

int main(void)
{
int16_t i = 0;
FlagStatus breathe_flag = SET;

/* configure the GPIO ports */
gpio_config();

/* configure the TIMER peripheral */
timer_config();

/* configure systick */
systick_config();

while (1){
      /* delay a time in milliseconds */
      delay_1ms(2);
      if (SET == breathe_flag){
         i = i + 10;
      }else{
         i = i - 10;
      }
      if(500 < i){
         breathe_flag = RESET;
      }
      if(0 >= i){
         breathe_flag = SET;
      }
      /* configure TIMER channel output pulse value */
      timer_channel_output_pulse_value_config(TIMER15,TIMER_CH_0,i);
}
}

GD32f310c8 Timre13 这样配置是可以的，