GD32E230C8T6定时器输出比较中断触发与比较值不符！

void timer0_gpio_config(void)

{

    rcu_periph_clock_enable(RCU_GPIOA);

    rcu_periph_clock_enable(RCU_GPIOB);



    /*configure PA8/PA9/PA10(TIMER0/CH0/CH1/CH2) as alternate function*/

    gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_8);

    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_8);



    gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_9);

    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_9);



    gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_10);

    gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_10);

        

        gpio_mode_set(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_11);

  gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_11);



    gpio_af_set(GPIOA, GPIO_AF_2, GPIO_PIN_8);

    gpio_af_set(GPIOA, GPIO_AF_2, GPIO_PIN_9);

    gpio_af_set(GPIOA, GPIO_AF_2, GPIO_PIN_10);

        gpio_af_set(GPIOA, GPIO_AF_2, GPIO_PIN_11);



    /*configure PB13/PB14/PB15(TIMER0/CH0N/CH1N/CH2N) as alternate function*/

    gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_13);

    gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_13);



    gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_14);

    gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_14);



    gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_15);

    gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_15);



    gpio_af_set(GPIOB, GPIO_AF_2, GPIO_PIN_13);

    gpio_af_set(GPIOB, GPIO_AF_2, GPIO_PIN_14);

    gpio_af_set(GPIOB, GPIO_AF_2, GPIO_PIN_15);



    /*configure PB12(TIMER0 BKIN) as alternate function*/

    gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_12);

    gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_12);

    gpio_af_set(GPIOB, GPIO_AF_2, GPIO_PIN_12);

}



void timer0_config(void)

{

    /* -----------------------------------------------------------------------

    TIMER0 configuration:

    generate 3 complementary PWM signal.

    TIMER0CLK is fixed to systemcoreclock, the TIMER0 prescaler is equal to 1 

    so the TIMER0 counter clock used is 72MHz.

    insert a dead time equal to 164/systemcoreclock = 2.28us 

    configure the break feature, active at low level, and using the automatic

    output enable feature.

    use the locking parameters level 0.

    ----------------------------------------------------------------------- */

    timer_oc_parameter_struct timer_ocinitpara;

    timer_parameter_struct timer_initpara;

    timer_break_parameter_struct timer_breakpara;

          /* enable the TIMER clock */

    rcu_periph_clock_enable(RCU_TIMER0);

                /* deinit a TIMER */

    timer_deinit(TIMER0);

    /* initialize TIMER init parameter struct */

    timer_struct_para_init(&timer_initpara);

    /* TIMER0 configuration */

    timer_initpara.prescaler         = 72 - 1;

    timer_initpara.alignedmode       = TIMER_COUNTER_CENTER_UP;

    timer_initpara.counterdirection  = TIMER_COUNTER_UP;

    timer_initpara.period            = 1500 - 1;

    timer_initpara.clockdivision     = TIMER_CKDIV_DIV1;

    timer_initpara.repetitioncounter = 0;

    timer_init(TIMER0, &timer_initpara);



    /* initialize TIMER channel output parameter struct */

    timer_channel_output_struct_para_init(&timer_ocinitpara);

    /* CH0/CH0N, CH1/CH1N and CH2/CH2N configuration in timing mode */

    timer_ocinitpara.outputstate  = TIMER_CCX_ENABLE;

    timer_ocinitpara.outputnstate = TIMER_CCXN_ENABLE;

    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_channel_output_config(TIMER0, TIMER_CH_1, &timer_ocinitpara);

    timer_channel_output_config(TIMER0, TIMER_CH_2, &timer_ocinitpara);

                

                timer_ocinitpara.outputnstate = TIMER_CCXN_DISABLE;

                timer_channel_output_config(TIMER0, TIMER_CH_3, &timer_ocinitpara);



    /* configure TIMER channel 0 */

    timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0, TIM0_DUTY_INIT - 1);

    timer_channel_output_mode_config(TIMER0, TIMER_CH_0, TIMER_OC_MODE_PWM1);                //PWM输出模式1

    timer_channel_output_shadow_config(TIMER0, TIMER_CH_0, TIMER_OC_SHADOW_DISABLE);

    

    /* configure TIMER channel 1 */

    timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_1, TIM0_DUTY_INIT - 1);

    timer_channel_output_mode_config(TIMER0, TIMER_CH_1, TIMER_OC_MODE_PWM1);

    timer_channel_output_shadow_config(TIMER0, TIMER_CH_1, TIMER_OC_SHADOW_DISABLE);



    /* configure TIMER channel 2 */

    timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_2, TIM0_DUTY_INIT - 1);

    timer_channel_output_mode_config(TIMER0, TIMER_CH_2, TIMER_OC_MODE_PWM1);

    timer_channel_output_shadow_config(TIMER0, TIMER_CH_2, TIMER_OC_SHADOW_DISABLE);

        

                /* configure TIMER channel 3 */

    timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_3, 4000);

    timer_channel_output_mode_config(TIMER0, TIMER_CH_3, TIMER_OC_MODE_PWM1);

    timer_channel_output_shadow_config(TIMER0, TIMER_CH_3, TIMER_OC_SHADOW_DISABLE);



    /* initialize TIMER break parameter struct */

    timer_break_struct_para_init(&timer_breakpara);

    /* automatic output enable, break, dead time and lock configuration*/

    timer_breakpara.runoffstate      = TIMER_ROS_STATE_ENABLE;

    timer_breakpara.ideloffstate     = TIMER_IOS_STATE_ENABLE;

    timer_breakpara.deadtime         = DEAD_TIME;

    timer_breakpara.breakpolarity    = TIMER_BREAK_POLARITY_LOW;

    timer_breakpara.outputautostate  = TIMER_OUTAUTO_ENABLE;

    timer_breakpara.protectmode      = TIMER_CCHP_PROT_OFF;      //互补寄存器写保护模式

    timer_breakpara.breakstate       = TIMER_BREAK_ENABLE;

    timer_break_config(TIMER0, &timer_breakpara);

    

    /* TIMER0 primary output function enable */

    timer_primary_output_config(TIMER0, ENABLE);



    /* TIMER0 break/channel interrupt enable */

                timer_interrupt_flag_clear(TIMER0, TIMER_INT_FLAG_BRK);

                timer_interrupt_flag_clear(TIMER0, TIMER_INT_FLAG_CH3);

                timer_interrupt_flag_clear(TIMER0, TIMER_INT_FLAG_UP);

    timer_interrupt_enable(TIMER0, TIMER_INT_BRK);

                timer_interrupt_enable(TIMER0, TIMER_INT_CH3);

                timer_interrupt_enable(TIMER0, TIMER_INT_UP);

                

    /* TIMER0 counter enable */

    timer_enable(TIMER0)

}