/*
 * adc.c
 *
 *  Created on: 2025Äê2ÔÂ25ÈÕ
 *      Author: Cerlink
 */
#include "../../init/inc/adc.h"

static void adc_Init(void)
{
    ADC_InitTypeDef  ADC_InitStructure = {0};
    GPIO_InitTypeDef GPIO_InitStructure = {0};

    RCC_PB2PeriphClockCmd(RCC_PB2Periph_GPIOA, ENABLE);
    RCC_PB2PeriphClockCmd(RCC_PB2Periph_ADC1, ENABLE);
    RCC_ADCCLKConfig(RCC_PCLK2_Div8);                   //8M/8

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_6|GPIO_Pin_7;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    ADC_DeInit(ADC1);

    ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
    ADC_InitStructure.ADC_ScanConvMode = ENABLE;
    ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
    ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
    ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
    ADC_InitStructure.ADC_NbrOfChannel = 5;
    ADC_Init(ADC1, &ADC_InitStructure);

    ADC_DMACmd(ADC1, ENABLE);
    ADC_Cmd(ADC1, ENABLE);

    ADC_FIFO_Cmd(ADC1, ENABLE);
    ADC_BufferCmd(ADC1, DISABLE); //disable buffer
    ADC_ResetCalibration(ADC1);
    while(ADC_GetResetCalibrationStatus(ADC1));
    ADC_StartCalibration(ADC1);
    while(ADC_GetCalibrationStatus(ADC1));
}

static void adc_dma_Tx_Init(DMA_Channel_TypeDef *DMA_CHx, u32 ppadr, u32 memadr, u16 bufsize)
{
    DMA_InitTypeDef DMA_InitStructure = {0};

    RCC_HBPeriphClockCmd(RCC_HBPeriph_DMA1, ENABLE);

    DMA_DeInit(DMA_CHx);
    DMA_InitStructure.DMA_PeripheralBaseAddr = ppadr;
    DMA_InitStructure.DMA_MemoryBaseAddr = memadr;
    DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
    DMA_InitStructure.DMA_BufferSize = bufsize;
    DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
    DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
    DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
    DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
    DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
    DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
    DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
    DMA_Init(DMA_CHx, &DMA_InitStructure);
}

uint16_t gADCBuf[5];
void all_adc_init(void)
{
    adc_Init();
    adc_dma_Tx_Init(DMA1_Channel1, (u32)&ADC1->RDATAR, (u32)gADCBuf, 5);
    DMA_Cmd(DMA1_Channel1, ENABLE);

    ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_CyclesMode7);//(239.5+1.5)*1/1M = 0.000241s = 241 us
    ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_CyclesMode7);//(239.5+1.5)*1/1M = 0.000241s = 241 us
    ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SampleTime_CyclesMode7);//(239.5+1.5)*1/1M = 0.000241s = 241 us
    ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 4, ADC_SampleTime_CyclesMode7);//(239.5+1.5)*1/1M = 0.000241s = 241 us
    ADC_RegularChannelConfig(ADC1, ADC_Channel_7, 5, ADC_SampleTime_CyclesMode7);//(239.5+1.5)*1/1M = 0.000241s = 241 us£¬241*5 = 1205 us

    ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}