[活动专区] 【AutoChips MCU评测报告】+ADC+DMA多通道采样

#include "ac78xx_adc.h"

#include "ac78xx_gpio.h"

#include "ac78xx.h"

#include "ac78xx_dma.h"



_Bool g_dmaFinish = 0;



/**

 * ADCDMACallback

 *

 * @param[in]  DMAx:DMA Channel Pointer

 * @param[in]  wparam:DMA Channel status

 * @param[in]  lparam:DMA Channel status

 * [url=home.php?mod=space&uid=266161]@return[/url] no

 *

 * [url=home.php?mod=space&uid=247401]@brief[/url]  ADC DMA channel Complete Interrupt

 */

int32_t ADCDMACallback(DMA_Type *DMAx, uint32_t wparam, uint32_t lparam)

{

    g_dmaFinish = 1;

    return 0;

}



/**

 * DMA_Config

 *

 * @param[in]  no

 * @return no

 *

 * ADC0_Value = *(uint32_t *)0x20006000;

 * ADC1_Value = *(uint32_t *)0x20006004;

 * ADC2_Value = *(uint32_t *)0x20006008;

 * ADC3_Value = *(uint32_t *)0x2000600C;

 * ADC4_Value = *(uint32_t *)0x20006010;

 * ADC5_Value = *(uint32_t *)0x20006014;

 *

 * @brief  Setting DMA always work

 */

void DMA_Config(void)

{

    uint32_t tmpMemStartAddr = 0x20006000;

    uint32_t tmpMemEndAddr = 0x2000ff00;                    ///<Setting memory DMA address

    DMA_ConfigType tmpDMAConfig = {0};



    *(uint32_t *)(tmpMemStartAddr) = 0x44332211;

    *(uint32_t *)(tmpMemStartAddr + 0x4) = 0xDDCCBBAA;

    *(uint32_t *)(tmpMemStartAddr + 0x8) = 0x88776655;      ///<Just test address write



    tmpDMAConfig.memStartAddr = tmpMemStartAddr;

    tmpDMAConfig.memEndAddr = tmpMemEndAddr;

    tmpDMAConfig.periphStartAddr = (uint32_t)(&(ADC->RDR)); ///<Move ADC DR to memory

    tmpDMAConfig.setting.channelEn = 1;                     ///<Enable DMAx channel

    tmpDMAConfig.setting.finishIntEn = 1;                   ///<Enable DMA transfer complete interrupt

    tmpDMAConfig.setting.halfFinishIntEn = 0;               ///<Disable DMA transfer half complete interrupt

    tmpDMAConfig.setting.errorIntEn = 1;

    tmpDMAConfig.setting.channelPriority = 3;               ///<3: Very high priority

    tmpDMAConfig.setting.circular = 1;                      ///<Circular mode enable,If want work one time disable

    tmpDMAConfig.setting.direction = 0;                     ///<1: Read from peripheral

    tmpDMAConfig.setting.MEM2MEM = 0;                       ///<Peripheral to memory

    tmpDMAConfig.setting.memByteMode = 0;                   ///<1:16-bit[15:0]; 2:[23:16],[7:0]

    tmpDMAConfig.setting.memIncrement = 1;                  ///<Memory address increment

    tmpDMAConfig.setting.periphIncrement = 0;               ///<Peripheral address fixed

    tmpDMAConfig.setting.memSize = 2;                       ///<2:32-bit

    tmpDMAConfig.setting.periphSize = 1;                    ///<Fixed 1:16-bit

    tmpDMAConfig.setting.transferNum = 6;               ///<As request



    DMA_Initialize(DMA1, &tmpDMAConfig);                    ///<Use DMA1 channel

    DMA_SetEventCallback(DMA1, ADCDMACallback);

    NVIC_EnableIRQ(DMA1_IRQn);

    ADC_DMACmd(ADC, ADC_ENABLE);

}



/**

 * ADC_Config

 *

 * @param[in]  no

 * @return no

 *

 * @brief  Setting ADC

 */

void ADC_Config(void)

{

    ADC_InitType tempAdcConfig = {0, 0, 0, 0, 0, 0, 1};

    ADC_TrigSourceType tempAdcTrigSource = {0, 0};

    ADC_InitType* adcConfig;

    ADC_TrigSourceType* adcTrigSource;

    adcConfig = &tempAdcConfig;

    adcTrigSource = &tempAdcTrigSource;

    adcConfig->scanMode = 1;                       ///<ADC mode 5

    adcConfig->continousMode = 1;

    adcConfig->disContinousModeOnRegularGroup = 0;

    adcConfig->disContinousModeOnInjectGroup = 0;

    adcConfig->injectAutoMode = 0;



    GPIO_SetFunc(7, 1);                            ///<ADC_IN0 Analog function enable

    GPIO_SetFunc(8, 1);                            ///<ADC_IN1 Analog function enable

    GPIO_SetFunc(9, 1);                            ///<ADC_IN2 Analog function enable

    GPIO_SetFunc(10, 1);                           ///<ADC_IN3 Analog function enable

    GPIO_SetFunc(11, 1);                           ///<ADC_IN4 Analog function enable

    GPIO_SetFunc(12, 1);                           ///<ADC_IN5 Analog function enable



    ADC_Init(ADC, adcConfig);                      ///<ADC works Mode Config

    ADC_SetClockPrescaler(ADC, 4);                 ///<Set ADC Sample Rate 369K = 96M/2/(4+1)/(14+12)

    ADC_TrigSourceInit(ADC, adcTrigSource);

    ADC_SetRegularGroupLength(ADC, 6);             //setting 6 ADC channel sample



    ADC_SetRegularGroupSequence(ADC, 1, ADC_CHANNEL_AD0); //set ADC_CHANNEL0 for AD Sample

    ADC_SetRegularGroupSequence(ADC, 2, ADC_CHANNEL_AD1); //set ADC_CHANNEL1 for AD Sample

    ADC_SetRegularGroupSequence(ADC, 3, ADC_CHANNEL_AD2); //set ADC_CHANNEL2 for AD Sample

    ADC_SetRegularGroupSequence(ADC, 4, ADC_CHANNEL_AD3); //set ADC_CHANNEL3 for AD Sample

    ADC_SetRegularGroupSequence(ADC, 5, ADC_CHANNEL_AD4); //set ADC_CHANNEL4 for AD Sample

    ADC_SetRegularGroupSequence(ADC, 6, ADC_CHANNEL_AD5); //set ADC_CHANNEL5 for AD Sample

    ADC_ChannelSampleTimeSel(ADC, ADC_CHANNEL_AD0, ADC_SampleTime_14Cycle); ///<Set ADC Sample Rate 369K = 96M/2/(4+1)/(14+12)

    ADC_ChannelSampleTimeSel(ADC, ADC_CHANNEL_AD1, ADC_SampleTime_14Cycle); ///<Set ADC Sample Rate 369K = 96M/2/(4+1)/(14+12)

    ADC_ChannelSampleTimeSel(ADC, ADC_CHANNEL_AD2, ADC_SampleTime_14Cycle); ///<Set ADC Sample Rate 369K = 96M/2/(4+1)/(14+12)

    ADC_ChannelSampleTimeSel(ADC, ADC_CHANNEL_AD3, ADC_SampleTime_14Cycle); ///<Set ADC Sample Rate 369K = 96M/2/(4+1)/(14+12)

    ADC_ChannelSampleTimeSel(ADC, ADC_CHANNEL_AD4, ADC_SampleTime_14Cycle); ///<Set ADC Sample Rate 369K = 96M/2/(4+1)/(14+12)

    ADC_ChannelSampleTimeSel(ADC, ADC_CHANNEL_AD5, ADC_SampleTime_14Cycle); ///<Set ADC Sample Rate 369K = 96M/2/(4+1)/(14+12)

    ADC_Cmd(ADC, ENABLE);

}

ADC_Config();

    DMA_Config();

    ADC_SoftwareStartRegularConvCmd(ADC, ADC_ENABLE);