[APM32F4] 【极海APM32F402 Micro-EVB开发板】--ADC采样

int main(void)

{

    /* ADC convert to voltage */

    float voltage = 0;



    USART_Config_T USART_ConfigStruct;



    /* USART config */

    USART_ConfigStructInit(&USART_ConfigStruct);

    USART_ConfigStruct.baudRate = 115200;

    USART_ConfigStruct.hardwareFlow = USART_HARDWARE_FLOW_NONE;

    USART_ConfigStruct.mode = USART_MODE_TX;

    USART_ConfigStruct.parity = USART_PARITY_NONE;

    USART_ConfigStruct.stopBits = USART_STOP_BIT_1;

    USART_ConfigStruct.wordLength = USART_WORD_LEN_8B;

    BOARD_COM_Config(COM1, &USART_ConfigStruct);



    /* ADC1 initialization */

    ADC_Init();



    /* Infinite loop */

    while (1)

    {

        if (DMA_ReadStatusFlag(DMA1_FLAG_TC1) == SET)

        {

            voltage = (double)DMA_ADCConvertedValue / 4095 * 3.3;



            printf("\r\n");

            printf("ADC register data = 0x%04X \r\n", DMA_ADCConvertedValue);

            printf("voltage           = %.03f V \r\n", voltage);



            Delay(5000);

            DMA_ClearStatusFlag(DMA1_FLAG_TC1);

        }

    }

}