STM32H750XB_RT-THREAD/29-ADC电压采集/ADC—独立模式-单通道—中断/User/adc/bsp_adc.c

/**
  ******************************************************************
  * @file    bsp_adcd.c
  * @author  fire
  * @version V1.1
  * @date    2018-xx-xx
  * @brief   adcӦ<EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD>
  ******************************************************************
  * @attention
  *
  * ʵ<EFBFBD><EFBFBD>ƽ̨:Ұ<EFBFBD><EFBFBD> STM32H750<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
  * <EFBFBD><EFBFBD>˾    :http://www.embedfire.com
  * <EFBFBD><EFBFBD>̳    :http://www.firebbs.cn
  * <EFBFBD>Ա<EFBFBD>    :https://fire-stm32.taobao.com
  *
  ******************************************************************
  */
#include "./adc/bsp_adc.h" 

extern float ADC_vol;

ADC_HandleTypeDef ADC_Handle;
__IO uint16_t ADC_ConvertedValue = 0;


/**
  * @brief  ADC<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD>
  * @param  <EFBFBD><EFBFBD>
  * @retval <EFBFBD><EFBFBD>
  */  
static void ADC_GPIO_Mode_Config(void)
{
  /* <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>GPIO_InitTypeDef<65><66><EFBFBD>͵Ľṹ<C4BD><E1B9B9> */
  GPIO_InitTypeDef  GPIO_InitStruct;
  /* ʹ<><CAB9>ADC3<43><33><EFBFBD>ŵ<EFBFBD>ʱ<EFBFBD><CAB1> */
  RHEOSTAT_ADC_GPIO_CLK_ENABLE();
  __HAL_RCC_SYSCFG_CLK_ENABLE();
    
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; 
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Pin = RHEOSTAT_ADC_PIN;
  /* <20><><EFBFBD><EFBFBD>Ϊģ<CEAA><C4A3><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */ 
  HAL_GPIO_Init(RHEOSTAT_ADC_GPIO_PORT, &GPIO_InitStruct);
  
  /* H750XBH6<48><36>ADC3_CH1ʹ<31>õ<EFBFBD><C3B5><EFBFBD>PC3_C<5F><43><EFBFBD><EFBFBD>PC3<43><33><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>ͨ<EFBFBD><CDA8>һ<EFBFBD><D2BB>ģ<EFBFBD>⿪<EFBFBD><E2BFAA><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD>ʹ<EFBFBD><CAB9>ʱ<EFBFBD><CAB1>Ҫ<EFBFBD>л<EFBFBD> */
  /* PC3_C ------> ADC3_INP1  */
  HAL_SYSCFG_AnalogSwitchConfig(SYSCFG_SWITCH_PC3, SYSCFG_SWITCH_PC3_OPEN);  
}

/**
  * @brief  ADC<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD>
  * @param  <EFBFBD><EFBFBD>
  * @retval <EFBFBD><EFBFBD>
  */  
static void ADC_Mode_Config(void)
{
	ADC_ChannelConfTypeDef ADC_Config;

	RCC_PeriphCLKInitTypeDef RCC_PeriphClkInit;  
	/*            <20><><EFBFBD><EFBFBD>ADC3ʱ<33><CAB1>Դ             */
	/*    HSE Frequency(Hz)    = 25000000   */                                             
	/*         PLL_M                = 5     */
	/*         PLL_N                = 160   */
	/*         PLL_P                = 25    */
	/*         PLL_Q                = 2     */
	/*         PLL_R                = 2     */
	/*     ADC_ker_clk         = 32000000   */
	RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC;
	RCC_PeriphClkInit.PLL2.PLL2FRACN = 0;
	RCC_PeriphClkInit.PLL2.PLL2M = 5;
	RCC_PeriphClkInit.PLL2.PLL2N = 160;
	RCC_PeriphClkInit.PLL2.PLL2P = 25;
	RCC_PeriphClkInit.PLL2.PLL2Q = 2;
	RCC_PeriphClkInit.PLL2.PLL2R = 2;
	RCC_PeriphClkInit.PLL2.PLL2RGE = RCC_PLL2VCIRANGE_2;
	RCC_PeriphClkInit.PLL2.PLL2VCOSEL = RCC_PLL2VCOWIDE;
	RCC_PeriphClkInit.AdcClockSelection = RCC_ADCCLKSOURCE_PLL2; 
	HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);  

	/* ʹ<><CAB9>ADC3ʱ<33><CAB1> */
	RHEOSTAT_ADC_CLK_ENABLE();  
		
	ADC_Handle.Instance = RHEOSTAT_ADC;
	//ADCʱ<43><CAB1>1<EFBFBD><31>Ƶ
	ADC_Handle.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
	//ʹ<><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>ģʽ
	ADC_Handle.Init.ContinuousConvMode = ENABLE;
	//ת<><D7AA>ͨ<EFBFBD><CDA8> 1<><31>
	ADC_Handle.Init.NbrOfConversion = 1;
	//<2F><><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݼĴ<DDBC><C4B4><EFBFBD><EFBFBD><EFBFBD>
	ADC_Handle.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DR;
	//<2F>رղ<D8B1><D5B2><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>ģʽ
	ADC_Handle.Init.DiscontinuousConvMode = DISABLE;
	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	ADC_Handle.Init.NbrOfDiscConversion = 0;
	//<2F><><EFBFBD><EFBFBD><EFBFBD>Ҷ<EFBFBD><D2B6><EFBFBD>	
	ADC_Handle.Init.LeftBitShift = ADC_LEFTBITSHIFT_NONE;
	
	//ʹ<><CAB9>EOC<4F><43>־λ
	ADC_Handle.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	ADC_Handle.Init.ExternalTrigConv = ADC_SOFTWARE_START;
	//<2F>رյ͹<D5B5><CDB9><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6>ȴ<EFBFBD>
	ADC_Handle.Init.LowPowerAutoWait = DISABLE;
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>
	ADC_Handle.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
	//<2F><>ʹ<EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD>ģʽ
	ADC_Handle.Init.OversamplingMode = DISABLE;
	//<2F>ֱ<EFBFBD><D6B1><EFBFBD>Ϊ<EFBFBD><CEAA>16bit
	ADC_Handle.Init.Resolution = ADC_RESOLUTION_16B;
	//<2F><>ʹ<EFBFBD>ܶ<EFBFBD>ͨ<EFBFBD><CDA8>ɨ<EFBFBD><C9A8>
	ADC_Handle.Init.ScanConvMode = DISABLE;
	//<2F><>ʼ<EFBFBD><CABC> ADC
	HAL_ADC_Init(&ADC_Handle);
	
	//ADCУ׼
  HAL_ADCEx_Calibration_Start(&ADC_Handle,ADC_CALIB_OFFSET,ADC_SINGLE_ENDED); 

	//ʹ<><CAB9>ͨ<EFBFBD><CDA8>1
	ADC_Config.Channel = ADC_CHANNEL_1;
	//ת<><D7AA>˳<EFBFBD><CBB3>Ϊ1
	ADC_Config.Rank = ADC_REGULAR_RANK_1 ;
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ64.5<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	ADC_Config.SamplingTime = ADC_SAMPLETIME_64CYCLES_5;
	//<2F><>ʹ<EFBFBD>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9><EFBFBD>
	ADC_Config.SingleDiff = ADC_SINGLE_ENDED ;
	//<2F><><EFBFBD><EFBFBD>ADCͨ<43><CDA8>
	HAL_ADC_ConfigChannel(&ADC_Handle, &ADC_Config);
	//ʹ<><CAB9>ADC
	ADC_Enable(&ADC_Handle);
}
/**
  * @brief  ADC<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD>
  * @param  <EFBFBD><EFBFBD>
  * @retval <EFBFBD><EFBFBD>
  */  
static void Rheostat_ADC_NVIC_Config(void)
{
	HAL_NVIC_SetPriority(Rheostat_ADC_IRQ, 1, 1);
	HAL_NVIC_EnableIRQ(Rheostat_ADC_IRQ);
}

/**
  * @brief  ADC<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  * @param  <EFBFBD><EFBFBD>
  * @retval <EFBFBD><EFBFBD>
  */
void ADC_Init(void)
{
	ADC_GPIO_Mode_Config();

	ADC_Mode_Config();
	//ADC<44>ж<EFBFBD><D0B6><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD>
	Rheostat_ADC_NVIC_Config();
	//ʹ<><CAB9>ADC<44>ж<EFBFBD> 
	HAL_ADC_Start_IT(&ADC_Handle);
	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ADC<44><43><EFBFBD><EFBFBD>
	HAL_ADC_Start(&ADC_Handle);
}

/**
  * @brief  ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жϻص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD>
  * @param  AdcHandle : ADC<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
  * @retval <EFBFBD><EFBFBD>
  */
void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* AdcHandle)
{
  /* <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD> */
  ADC_ConvertedValue = HAL_ADC_GetValue(AdcHandle);  
}
/*********************************************END OF FILE**********************/