/********************************** (C) COPYRIGHT *******************************
* File Name          : main.c
* Author             : WCH
* Version            : V1.0.0
* Date               : 2021/08/08
* Description        : Main program body.
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* SPDX-License-Identifier: Apache-2.0
*******************************************************************************/

/*
 *@Note
  双ADC同步注入采样例程：
 ADC1通道2(PA2),ADC2通道2(PA3)。
*/

#include "debug.h"

/* Global Variable */
u16 ADC_val1, ADC_val2;
s16 Calibrattion_Val1 = 0;
s16 Calibrattion_Val2 = 0;

/*********************************************************************
 * @fn      ADC_Function_Init
 *
 * @brief   Initializes ADC collection.
 *
 * @return  none
 */
void  ADC_Function_Init( void )
{
    ADC_InitTypeDef ADC_InitStructure = {0};
    GPIO_InitTypeDef GPIO_InitStructure = {0};

    RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA, ENABLE );
    RCC_APB2PeriphClockCmd( RCC_APB2Periph_ADC1, ENABLE );
    RCC_APB2PeriphClockCmd( RCC_APB2Periph_ADC2, ENABLE );
    RCC_ADCCLKConfig( RCC_PCLK2_Div4 );

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_Init( GPIOA, &GPIO_InitStructure );

    ADC_DeInit( ADC1 );
    ADC_DeInit( ADC2 );

    ADC_InitStructure.ADC_Mode = ADC_Mode_InjecSimult;
    ADC_InitStructure.ADC_ScanConvMode = DISABLE;
    ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
    ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigInjecConv_None;
    ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
    ADC_InitStructure.ADC_NbrOfChannel = 1;
    ADC_InitStructure.ADC_OutputBuffer = ADC_OutputBuffer_Disable;
    ADC_InitStructure.ADC_Pga = ADC_Pga_1;

    ADC_Init( ADC1, &ADC_InitStructure );

    ADC_InjectedSequencerLengthConfig( ADC1, 1 );
    ADC_InjectedChannelConfig( ADC1, ADC_Channel_2, 1, ADC_SampleTime_239Cycles5 );

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

    ADC_BufferCmd( ADC1, DISABLE ); //disable buffer
    ADC_ResetCalibration( ADC1 );
    while( ADC_GetResetCalibrationStatus( ADC1 ) );
    ADC_StartCalibration( ADC1 );
    while( ADC_GetCalibrationStatus( ADC1 ) );
    Calibrattion_Val1 = Get_CalibrationValue( ADC1 );

    ADC_BufferCmd( ADC1, ENABLE ); //enable buffer

    ADC_Init( ADC2, &ADC_InitStructure );
    ADC_InjectedSequencerLengthConfig( ADC2, 1 );
    ADC_InjectedChannelConfig( ADC2, ADC_Channel_3, 1, ADC_SampleTime_239Cycles5 );

    ADC_SoftwareStartInjectedConvCmd( ADC2, ENABLE );
    ADC_Cmd( ADC2, ENABLE );

    ADC_BufferCmd( ADC2, DISABLE ); //disable buffer
    ADC_ResetCalibration( ADC2 );
    while( ADC_GetResetCalibrationStatus( ADC2 ) );
    ADC_StartCalibration( ADC2 );
    while( ADC_GetCalibrationStatus( ADC2 ) );
    Calibrattion_Val2 = Get_CalibrationValue( ADC2 );

    ADC_BufferCmd( ADC2, ENABLE ); //enable buffer
}

/*********************************************************************
 * @fn      Get_ConversionVal1
 *
 * @brief   Get Conversion Value.
 *
 * @param   val - Sampling value
 *
 * @return  val+Calibrattion_Val - Conversion Value.
 */
u16 Get_ConversionVal1( s16 val )
{
    if( ( val + Calibrattion_Val1 ) < 0 )
    {
        return 0;
    }
    if( ( Calibrattion_Val1 + val ) > 4095 )
    {
        return 4095;
    }
    return ( val + Calibrattion_Val1 );
}

/*********************************************************************
 * @fn      Get_ConversionVal2
 *
 * @brief   Get Conversion Value.
 *
 * @param   val - Sampling value
 *
 * @return  val+Calibrattion_Val - Conversion Value.
 */
u16 Get_ConversionVal2( s16 val )
{
    if( ( val + Calibrattion_Val2 ) < 0 )
    {
        return 0;
    }
    if( ( Calibrattion_Val2 + val ) > 4095 )
    {
        return 4095;
    }
    return ( val + Calibrattion_Val2 );
}

/*********************************************************************
 * @fn      main
 *
 * @brief   Main program.
 *
 * @return  none
 */
int main( void )
{
    USART_Printf_Init( 115200 );
    Delay_Init();
    printf( "SystemClk:%d\r\n", SystemCoreClock );
    ADC_Function_Init();
    printf( "CalibrattionValue1:%d\n", Calibrattion_Val1 );
    printf( "CalibrattionValue2:%d\n", Calibrattion_Val2 );

    while( 1 )
    {
        ADC_SoftwareStartInjectedConvCmd( ADC1, ENABLE );
        Delay_Ms( 100 );

        ADC_SoftwareStartInjectedConvCmd( ADC1, DISABLE );
        Delay_Ms( 100 );

        while( !ADC_GetFlagStatus( ADC1, ADC_FLAG_JEOC ) );
        ADC_val1 = ADC_GetInjectedConversionValue( ADC1, ADC_InjectedChannel_1 );
        ADC_val2 = ADC_GetInjectedConversionValue( ADC2, ADC_InjectedChannel_1 );

        printf( "JADC1 ch2=%04d\r\n", Get_ConversionVal1( ADC_val1 ) );
        printf( "JADC2 ch3=%04d\r\n", Get_ConversionVal2( ADC_val2 ) );
    }
}




