APM32F003F6P6芯片,想要ADC采集5个引脚的电压,实际只能读取3个.

void ADC_Calibration(void){

    uint8_t i;

    int8_t offset = 0;

    uint16_t adcData = 0;



    ADC_SetOffset(0);

    ADC_EnableCompensation();

    ADC_ClearStatusFlag(ADC_FLAG_CC);

    ADC_Enable();

    ADC_StartConversion();



    for(i = 0; i < 10; i++) {

        while(ADC_ReadStatusFlag(ADC_FLAG_CC) == RESET);

        ADC_ClearStatusFlag(ADC_FLAG_CC);

    }

    ADC_Disable();



    adcData = ADC_ReadData();

    offset = (int8_t)(0x800 - adcData);

    ADC_SetOffset(offset);



    ADC_DisableCompensation();

    ADC_ClearStatusFlag(ADC_FLAG_CC);

}





void ADC_ContinuousScanInit(void){

    ADC_Config_T adcConfig;

    GPIO_Config_T gpioConfig;



    gpioConfig.intEn = GPIO_EINT_DISABLE;

    gpioConfig.mode = GPIO_MODE_IN_FLOATING;

    gpioConfig.pin = GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_4| GPIO_PIN_3;    //AIN0:PC5, AIN1:PC6,AIN2:PC4, AIN3:PD2--烧录口,AIN4:PD3,AIN5:PD5,AIN6:PD6,AIN7:PC3

    GPIO_Config(GPIOC, &gpioConfig);



    gpioConfig.pin = GPIO_PIN_3;

    GPIO_Config(GPIOD, &gpioConfig);



    ADC_SetMode(ADC_MODE_SINGLE_END);



    ADC_ConfigStructInit(&adcConfig);

    adcConfig.div = ADC_DIV_4;

    adcConfig.convMode = ADC_CONV_MODE_CONTINUOUS;

    adcConfig.scanMode = ADC_SCAN_MODE_ENABLE;

    adcConfig.interrupt = ADC_INT_CC;

    adcConfig.channel = ADC_CHANNEL_2; //ADC_CHANNEL_0  ADC_CHANNEL_1 ADC_CHANNEL_2

    ADC_Config(&adcConfig);



    ADC_Calibration();



    ADC_Enable();

    ADC_StartConversion();

}





void ADC_PollForConversion(void){

    uint16_t voltage = 0;

    uint16_t adcArray[10] = {0};

    uint8_t bufferIndex;



    SEGGER_RTT_printf(0, "===========ADC_PollForConversion===2222=======\r\n");



    if(ADC_ReadStatusFlag(ADC_FLAG_CC) == SET){

        // SEGGER_RTT_printf(0, "===========ADC_PollForConversion===55555=======\r\n");

        ADC_ClearStatusFlag(ADC_FLAG_CC);

        for(bufferIndex = 0; bufferIndex < 8; bufferIndex++){

            adcArray[bufferIndex] = ADC_ReadBufferData((ADC_BUFFER_IDX_T)(bufferIndex));

        }



        for(bufferIndex = 0; bufferIndex < 8; bufferIndex++){

        

            voltage = (adcArray[bufferIndex] * 3300) / 4095;

            // printf("ADC Channel %d Value:%d\r\n", bufferIndex, voltage);

            SEGGER_RTT_printf(0, "===========ADC_PollForConversion=1111==========ADC,  Channel:%d,  vol:%d \r\n",bufferIndex, voltage);

        }

    }

}