ADC定时器触发注入通道转换时刻点不正确

#include "misc.h"

#include "n32g031_adc.h"

#include "n32g031_gpio.h"

#include "n32g031_rcc.h"

#include "n32g031_tim.h"



ADC_InitType ADC_InitStructure;

TIM_TimeBaseInitType TIM_TimeBaseStructure;

OCInitType TIM_OCInitStructure;

__IO uint16_t  ADC_InjectedConvertedValueTab[32];

__IO uint32_t Index;



void RCC_Configuration(void);

void GPIO_Configuration(void);

void NVIC_Configuration(void);



int main(void)

{

    /* System clocks configuration ---------------------------------------------*/

    RCC_Configuration();



    /* NVIC configuration ------------------------------------------------------*/

    NVIC_Configuration();



    /* GPIO configuration ------------------------------------------------------*/

    GPIO_Configuration();



    /* TIM1 configuration ------------------------------------------------------*/

    /* Time Base configuration */

    TIM_InitTimBaseStruct(&TIM_TimeBaseStructure);

    TIM_TimeBaseStructure.Period = 3000 - 1; // 0xFF;

    TIM_TimeBaseStructure.Prescaler = 0;

    TIM_TimeBaseStructure.ClkDiv = 0x0;

    TIM_TimeBaseStructure.CntMode = TIM_CNT_MODE_UP;

    TIM_InitTimeBase(TIM1, &TIM_TimeBaseStructure);

    /* TIM1 channel1 configuration in PWM mode */

    TIM_OCInitStructure.OcMode = TIM_OCMODE_PWM1;

    TIM_OCInitStructure.OutputState = TIM_OUTPUT_STATE_ENABLE;

    TIM_OCInitStructure.Pulse = 2400 - 1;

    TIM_OCInitStructure.OcPolarity = TIM_OC_POLARITY_HIGH;

    TIM_InitOc4(TIM1, &TIM_OCInitStructure);



    /* ADC configuration ------------------------------------------------------*/

    ADC_InitStructure.MultiChEn = ENABLE;

    ADC_InitStructure.ContinueConvEn = DISABLE;

    ADC_InitStructure.ExtTrigSelect = ADC_EXT_TRIGCONV_NONE;

    ADC_InitStructure.DatAlign = ADC_DAT_ALIGN_R;

    ADC_InitStructure.ChsNumber = 1;

    ADC_Init(ADC, &ADC_InitStructure);



    /* Set injected sequencer length */

    ADC_ConfigInjectedSequencerLength(ADC, 2);

    /* ADC injected channel Configuration */

    ADC_ConfigInjectedChannel(ADC, ADC_CH_0_PA0, 1, ADC_SAMP_TIME_6CYCLES5);

    ADC_ConfigInjectedChannel(ADC, ADC_CH_1_PA1, 2, ADC_SAMP_TIME_6CYCLES5);

    /* ADC injected external trigger configuration */

    ADC_ConfigExternalTrigInjectedConv(ADC, ADC_EXT_TRIG_INJ_CONV_T1_CC4);

    /* Enable automatic injected conversion start after regular one */

    ADC_EnableAutoInjectedConv(ADC, DISABLE);

    /* Enable JEOC interrupt */

    ADC_ConfigInt(ADC, ADC_INT_JENDC, ENABLE);



    /* Enable ADC external trigger */

    ADC_EnableExternalTrigInjectedConv(ADC, ENABLE);



    /* Enable ADC */

    ADC_Enable(ADC, ENABLE);



    /*wait ADC is ready to use*/

    while (!ADC_GetFlagStatusNew(ADC, ADC_FLAG_RDY))

        ;

    /*wait ADC is powered on*/

    while (ADC_GetFlagStatusNew(ADC, ADC_FLAG_PD_RDY))

        ;



    /* TIM1 counter enable */

    TIM_Enable(TIM1, ENABLE);

    /* TIM1 main Output Enable */

    TIM_EnableCtrlPwmOutputs(TIM1, ENABLE);



    while (1) {

    }

}



/**

 * [url=home.php?mod=space&uid=247401]@brief[/url]  Configures the different system clocks.

 */

void RCC_Configuration(void)

{

    ErrorStatus HSIStartUpStatus;

    /* Enable peripheral clocks ------------------------------------------------*/

    /* Enable TIM1 clocks */

    RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_TIM1, ENABLE);



    /* Enable GPIO clocks */

    RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOA | RCC_APB2_PERIPH_GPIOB, ENABLE);

    /* Enable ADC clocks */

    RCC_EnableAHBPeriphClk(RCC_AHB_PERIPH_ADC, ENABLE);



    /* RCC_ADCHCLK_DIV16*/

    ADC_ConfigClk(ADC_CTRL3_CKMOD_AHB, RCC_ADCHCLK_DIV3);



    /* enable ADC1M clock */

    RCC_EnableHsi(ENABLE);



    /* Wait til1 HSI is ready*/

    HSIStartUpStatus = RCC_WaitHsiStable();

    if (HSIStartUpStatus == SUCCESS) {

    }

    else {

        /* If HSI fails to start-up, the application will have wrong clock configuration. User can add here some code to

         * deal with this error*/

        /* Go to infinital 1oop*/

        while (1) {

        }

    }



    RCC_ConfigAdc1mClk(RCC_ADC1MCLK_SRC_HSI, RCC_ADC1MCLK_DIV8);

}



/**

 * [url=home.php?mod=space&uid=247401]@brief[/url]  Configures the different GPIO ports.

 */

void GPIO_Configuration(void)

{

    GPIO_InitType GPIO_InitStructure;



    GPIO_InitStruct(&GPIO_InitStructure);

    /* Configure TIM1_CH4(PA11) as alternate function push-pull */

    GPIO_InitStructure.Pin = GPIO_PIN_11;

    GPIO_InitStructure.GPIO_Current = GPIO_DC_LOW;

    GPIO_InitStructure.GPIO_Mode = GPIO_MODE_AF_PP;

    GPIO_InitStructure.GPIO_Alternate = GPIO_AF2_TIM1;

    GPIO_InitPeripheral(GPIOA, &GPIO_InitStructure);



    /* Configure PB.07 as output push-pull */

    GPIO_InitStructure.Pin = GPIO_PIN_7;

    GPIO_InitStructure.GPIO_Mode = GPIO_MODE_OUTPUT_PP; 

    GPIO_InitPeripheral(GPIOB, &GPIO_InitStructure);



    /* Configure PA.00 and PA.01 as analog input */

    GPIO_InitStructure.Pin = GPIO_PIN_0 | GPIO_PIN_1;

    GPIO_InitStructure.GPIO_Mode = GPIO_MODE_ANALOG;

    GPIO_InitPeripheral(GPIOA, &GPIO_InitStructure);

}



/**

 * @brief  Configures NVIC and Vector Table base location.

 */

void NVIC_Configuration(void)

{

    NVIC_InitType NVIC_InitStructure;



    /* Configure and enable ADC interrupt */

    NVIC_InitStructure.NVIC_IRQChannel = ADC_IRQn;

    NVIC_InitStructure.NVIC_IRQChannelPriority = 0;

    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

    NVIC_Init(&NVIC_InitStructure);

}



/**

 * @brief  This function handles ADC global interrupts requests.

 */

void ADC_IRQHandler(void)

{

    /* Set PA.06 pin */

    GPIOB->PBSC = GPIO_PIN_7;

    /* Get injected channel11 converted value */

    if (Index >= sizeof(ADC_InjectedConvertedValueTab) / sizeof(ADC_InjectedConvertedValueTab[0])) {

        Index = 0;

    }

    ADC_InjectedConvertedValueTab[Index++] = ADC_GetInjectedConversionDat(ADC, ADC_INJ_CH_1);

    ADC_InjectedConvertedValueTab[Index++] = ADC_GetInjectedConversionDat(ADC, ADC_INJ_CH_2);

    /* Clear ADC JEOC pending interrupt bit */

    ADC_ClearIntPendingBit(ADC, ADC_INT_JENDC);

    /* Reset PA.06 pin */

    GPIOB->PBC = GPIO_PIN_7;

}