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/**
******************************************************************************
* @file ADC/ADC_InjectedConversion_Interrupt/Src/main.c
* @author MCD Application Team
* @brief This example describes how to use injected conversion
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F4xx_HAL_Examples
* @{
*/
/** @addtogroup ADC_InjectedConversion_Interrupt
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* ADC handler declaration */
ADC_HandleTypeDef AdcHandle;
/* Variable used to get converted value */
__IO uint16_t uhADCxConvertedRegValue = 0;
__IO uint16_t uhADCxConvertedInjValue = 0;
/* Private function prototypes -----------------------------------------------*/
static void SystemClock_Config(void);
static void ADC_Config(void);
static void Error_Handler(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 144 MHz */
SystemClock_Config();
/* Configure LED3 */
BSP_LED_Init(LED3);
/*##-1- Configure the ADC peripheral #######################################*/
ADC_Config();
/*##-2- Start the conversion process and enable interrupt for regular channel #*/
if(HAL_ADC_Start_IT(&AdcHandle) != HAL_OK)
{
/* Start Conversation Error */
Error_Handler();
}
/*##-3- Wait one seconde before starting injected conversion ###############*/
HAL_Delay(1000);
/*##-4- Start the conversion process and enable interrupt for injected channel #*/
if(HAL_ADCEx_InjectedStart_IT(&AdcHandle) != HAL_OK)
{
/* Start Conversation Error */
Error_Handler();
}
/* Infinite loop */
while (1)
{
}
}
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 144000000
* HCLK(Hz) = 144000000
* AHB Prescaler = 1
* APB1 Prescaler = 4
* APB2 Prescaler = 2
* HSE Frequency(Hz) = 25000000
* PLL_M = 25
* PLL_N = 288
* PLL_P = 2
* PLL_Q = 6
* VDD(V) = 3.3
* Main regulator output voltage = Scale2 mode
* Flash Latency(WS) = 5
* @param None
* @retval None
*/
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
/* Enable Power Control clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* The voltage scaling allows optimizing the power consumption when the device is
clocked below the maximum system frequency, to update the voltage scaling value
regarding system frequency refer to product datasheet. */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 25;
RCC_OscInitStruct.PLL.PLLN = 288;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 6;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);
}
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
static void Error_Handler(void)
{
/* Turn LED3 on */
BSP_LED_On(LED3);
while(1)
{
}
}
/**
* @brief ADC configuration
* @param None
* @retval None
*/
static void ADC_Config(void)
{
ADC_ChannelConfTypeDef sConfig;
ADC_InjectionConfTypeDef sConfigInjected;
/* ADC Initialization */
AdcHandle.Instance = ADCx;
AdcHandle.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV2;
AdcHandle.Init.Resolution = ADC_RESOLUTION_12B;
AdcHandle.Init.ScanConvMode = DISABLE;
AdcHandle.Init.ContinuousConvMode = ENABLE;
AdcHandle.Init.DiscontinuousConvMode = DISABLE;
AdcHandle.Init.NbrOfDiscConversion = 0;
AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
AdcHandle.Init.ExternalTrigConv = ADC_SOFTWARE_START;
AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT;
AdcHandle.Init.NbrOfConversion = 1;
AdcHandle.Init.DMAContinuousRequests = DISABLE;
AdcHandle.Init.EOCSelection = DISABLE;
if(HAL_ADC_Init(&AdcHandle) != HAL_OK)
{
/* Turn LED3 on: in case of Initialization Error */
Error_Handler();
}
/* Configure ADC regular channel */
sConfig.Channel = ADCx_REG_CHANNEL;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_56CYCLES;
sConfig.Offset = 0;
if(HAL_ADC_ConfigChannel(&AdcHandle, &sConfig) != HAL_OK)
{
/* Turn LED3 on: in case of Channel Configuration Error */
Error_Handler();
}
/* Configure ADC injected channel */
sConfigInjected.InjectedNbrOfConversion = 1;
sConfigInjected.InjectedChannel = ADCx_INJ_CHANNEL;
sConfigInjected.InjectedRank = 1;
sConfigInjected.InjectedSamplingTime = ADC_SAMPLETIME_56CYCLES;
sConfigInjected.InjectedOffset = 0;
sConfigInjected.ExternalTrigInjecConvEdge = ADC_EXTERNALTRIGINJECCONVEDGE_NONE;
sConfigInjected.ExternalTrigInjecConv = ADC_SOFTWARE_START;
sConfigInjected.AutoInjectedConv = DISABLE;
sConfigInjected.InjectedDiscontinuousConvMode = DISABLE;
if(HAL_ADCEx_InjectedConfigChannel(&AdcHandle, &sConfigInjected) != HAL_OK)
{
/* Channel Configuration Error */
Error_Handler();
}
}
/**
* @brief Conversion complete callback in non blocking mode
* @param AdcHandle : AdcHandle handle
* @note This example shows a simple way to report end of conversion, and
* you can add your own implementation.
* @retval None
*/
void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* AdcHandle)
{
/* Get the converted value of regular channel */
uhADCxConvertedRegValue = HAL_ADC_GetValue(AdcHandle);
}
/**
* @brief Conversion complete callback in non blocking mode
* @param AdcHandle : AdcHandle handle
* @note This example shows a simple way to report end of conversion, and
* you can add your own implementation.
* @retval None
*/
void HAL_ADCEx_InjectedConvCpltCallback(ADC_HandleTypeDef* AdcHandle)
{
/* Get the converted value of injected channel */
uhADCxConvertedInjValue = HAL_ADCEx_InjectedGetValue(AdcHandle, ADC_INJECTED_RANK_1);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
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