本帖最后由 风来吴山 于 2021-4-8 17:02 编辑
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);
}
}
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