GD32E230使用高级定时器的比较输出

风来吴山 · 2021-4-8 10:18

初始化的时候就死机了，不知道怎么使用高级定时器的比较输出模式
void b_timer_config(uint16_t __pres, uint16_t __period, uint16_t __pulse)
{
// timer_oc_parameter_struct timer_ocinitpara;
timer_parameter_struct timer_initpara;
timer_break_parameter_struct timer_breakpara;

rcu_periph_clock_enable(RCU_TIMER0);
timer_deinit(TIMER0);

timer_struct_para_init(&timer_initpara);
timer_initpara.prescaler       = __pres;
timer_initpara.alignedmode    = TIMER_COUNTER_EDGE;
timer_initpara.counterdirection  = TIMER_COUNTER_UP;
timer_initpara.period          = __period;             // 10KHz
timer_initpara.clockdivision    = TIMER_CKDIV_DIV1;
timer_initpara.repetitioncounter = 0;
timer_init(TIMER0, &timer_initpara);

// timer_channel_output_struct_para_init(&timer_ocinitpara);
// timer_ocinitpara.outputstate  = TIMER_CCX_ENABLE;
// timer_ocinitpara.outputnstate = TIMER_CCXN_DISABLE;
// timer_ocinitpara.ocpolarity = TIMER_OC_POLARITY_HIGH;
// timer_ocinitpara.ocnpolarity  = TIMER_OCN_POLARITY_HIGH;
// timer_ocinitpara.ocidlestate  = TIMER_OC_IDLE_STATE_LOW;
// timer_ocinitpara.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
// timer_channel_output_config(TIMER0, TIMER_CH_0, &timer_ocinitpara);

timer_break_struct_para_init(&timer_breakpara);
timer_breakpara.runoffstate    = TIMER_ROS_STATE_ENABLE;
timer_breakpara.ideloffstate    = TIMER_IOS_STATE_ENABLE;
timer_breakpara.deadtime       = 164;
timer_breakpara.breakpolarity = TIMER_BREAK_POLARITY_LOW;
timer_breakpara.outputautostate  = TIMER_OUTAUTO_ENABLE;
timer_breakpara.protectmode    = TIMER_CCHP_PROT_OFF;
timer_breakpara.breakstate    = TIMER_BREAK_ENABLE;
timer_break_config(TIMER0, &timer_breakpara);

timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0, __pulse);
timer_channel_output_mode_config(TIMER0, TIMER_CH_0, TIMER_OC_MODE_PWM0);
// timer_channel_output_shadow_config(TIMER0, TIMER_CH_0, TIMER_OC_SHADOW_DISABLE);
// timer_primary_output_config(TIMER0, ENABLE);
nvic_irq_enable(TIMER0_Channel_IRQn, 1);
timer_interrupt_enable(TIMER0, TIMER_INT_CH0);
timer_interrupt_disable(TIMER0, TIMER_INT_BRK);
timer_auto_reload_shadow_enable(TIMER0);
timer_enable(TIMER0);
}

void TIMER0_IRQHandler(void)
{
static uint8_t status = 0;
if (SET == timer_interrupt_flag_get(TIMER0, TIMER_INT_CH0))
{
      status++;
      switch (status % 3){
      case 0:
         printf("a\n");
         timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0, tim[B.idle);
         timer_channel_output_pulse_value_config(TIMER15, TIMER_CH_0, 0);
         break;
      case 1:
         printf("b\n");
         timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0, tim[B.t_off);
         timer_channel_output_pulse_value_config(TIMER15, TIMER_CH_0, 0);
         break;
      case 2:
         printf("c\n");
         timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0, tim[B.t_on);
         timer_channel_output_pulse_value_config(TIMER15, TIMER_CH_0, pwm_ch[B.pulse);
         break;
      default:
         break;
      }
      timer_interrupt_flag_clear(TIMER0, TIMER_INT_CH0);
}
}

风来吴山 · 2021-4-8 17:01

本帖最后由风来吴山于 2021-4-8 17:02 编辑

看了芯片手册，把通道换到CH3也不行。

复制代码

void b_timer_config(uint16_t __pres, uint16_t __period, uint16_t __pulse)
{
timer_parameter_struct timer_initpara;
// timer_oc_parameter_struct timer_ocinitpara;
// timer_break_parameter_struct timer_breakpara;
rcu_periph_clock_enable(RCU_TIMER0);
timer_deinit(TIMER0);
timer_struct_para_init(&timer_initpara);
timer_initpara.prescaler = __pres;
timer_initpara.alignedmode = TIMER_COUNTER_EDGE;
timer_initpara.counterdirection = TIMER_COUNTER_UP;
timer_initpara.period = __period; // 10KHz
timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
timer_initpara.repetitioncounter = 0;
timer_init(TIMER0, &timer_initpara);
// timer_channel_output_struct_para_init(&timer_ocinitpara);
// timer_ocinitpara.outputstate = TIMER_CCX_DISABLE;
// timer_ocinitpara.outputnstate = TIMER_CCXN_DISABLE;
// timer_ocinitpara.ocpolarity = TIMER_OC_POLARITY_HIGH;
// timer_ocinitpara.ocnpolarity = TIMER_OCN_POLARITY_HIGH;
// timer_ocinitpara.ocidlestate = TIMER_OC_IDLE_STATE_LOW;
// timer_ocinitpara.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW;
// timer_channel_output_config(TIMER14, TIMER_CH_0, &timer_ocinitpara);
// timer_break_struct_para_init(&timer_breakpara);
// timer_breakpara.runoffstate = TIMER_ROS_STATE_ENABLE;
// timer_breakpara.ideloffstate = TIMER_IOS_STATE_ENABLE;
// timer_breakpara.deadtime = 164;
// timer_breakpara.breakpolarity = TIMER_BREAK_POLARITY_LOW;
// timer_breakpara.outputautostate = TIMER_OUTAUTO_ENABLE;
// timer_breakpara.protectmode = TIMER_CCHP_PROT_OFF;
// timer_breakpara.breakstate = TIMER_BREAK_ENABLE;
// timer_break_config(TIMER0, &timer_breakpara);
// timer_channel_output_shadow_config(TIMER0, TIMER_CH_3, TIMER_OC_SHADOW_ENABLE);
timer_channel_output_mode_config(TIMER0, TIMER_CH_3, TIMER_OC_MODE_TIMING);
timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_3, __pulse);
nvic_irq_enable(TIMER0_Channel_IRQn, 1);
timer_interrupt_enable(TIMER0, TIMER_INT_CH3);
timer_auto_reload_shadow_enable(TIMER0);
timer_enable(TIMER0);
}
void TIMER0_IRQHandler(void)
{
static uint8_t status = 0;
if (SET == timer_interrupt_flag_get(TIMER0, TIMER_INT_FLAG_CH3))
{
status++;
switch (status % 3){
case 0:
printf("a\n");
timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_3, tim[B].idle);
timer_channel_output_pulse_value_config(TIMER15, TIMER_CH_0, 0);
break;
case 1:
printf("b\n");
timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_3, tim[B].t_off);
timer_channel_output_pulse_value_config(TIMER15, TIMER_CH_0, 0);
break;
case 2:
printf("c\n");
timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_3, tim[B].t_on);
timer_channel_output_pulse_value_config(TIMER15, TIMER_CH_0, pwm_ch[B].pulse);
break;
default:
break;
}
timer_interrupt_flag_clear(TIMER0, TIMER_INT_FLAG_CH3);
}
}