mirror of
https://github.com/STMicroelectronics/STM32CubeF7.git
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366 lines
11 KiB
C
366 lines
11 KiB
C
/**
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******************************************************************************
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* @file ADC/ADC_DualModeInterleaved/Src/main.c
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* @author MCD Application Team
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* @brief This example provides a short description of how to use the ADC
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* peripheral to convert a regular channel in Dual interleaved mode.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/** @addtogroup STM32F7xx_HAL_Examples
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* @{
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*/
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/** @addtogroup ADC_DualModeInterleaved
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* ADC handler declaration */
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ADC_HandleTypeDef AdcHandle1;
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ADC_HandleTypeDef AdcHandle2;
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/* Variable used to get converted value */
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__IO uint16_t uhADCDualConvertedValue = 0;
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/* Private function prototypes -----------------------------------------------*/
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static void MPU_Config(void);
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void SystemClock_Config(void);
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static void Error_Handler(void);
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static void ADC_Config(void);
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static void CPU_CACHE_Enable(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Main program.
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* @param None
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* @retval None
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*/
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int main(void)
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{
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/* Configure the MPU attributes */
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MPU_Config();
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/* Enable the CPU Cache */
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CPU_CACHE_Enable();
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/* STM32F7xx HAL library initialization:
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- Configure the Flash ART accelerator on ITCM interface
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- Systick timer is configured by default as source of time base, but user
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can eventually implement his proper time base source (a general purpose
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timer for example or other time source), keeping in mind that Time base
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duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
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handled in milliseconds basis.
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- Set NVIC Group Priority to 4
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- Low Level Initialization
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*/
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HAL_Init();
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/* Configure the system clock to 216 MHz */
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SystemClock_Config();
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/* Configure LED1 and LED3 */
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BSP_LED_Init(LED1);
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BSP_LED_Init(LED3);
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/*##-1- Configure ADC1 and ADC2 peripherals ################################*/
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ADC_Config();
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/*##-2- Enable ADC2 ########################################################*/
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if (HAL_ADC_Start(&AdcHandle2) != HAL_OK)
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{
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/* Start Error */
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Error_Handler();
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}
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/*##-3- Start ADC1 and ADC2 multimode conversion process and enable DMA ####*/
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/* Note: Considering IT occurring after each number of ADC conversions */
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/* (IT by DMA end of transfer), select sampling time and ADC clock */
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/* with sufficient duration to not create an overhead situation in */
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/* IRQHandler. */
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if (HAL_ADCEx_MultiModeStart_DMA(&AdcHandle1, (uint32_t *)&uhADCDualConvertedValue, 1) != HAL_OK)
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{
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/* Start Error */
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Error_Handler();
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}
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/* Infinite loop */
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while (1)
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{
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}
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 216000000
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* HCLK(Hz) = 216000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 4
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* APB2 Prescaler = 2
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* HSE Frequency(Hz) = 25000000
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* PLL_M = 25
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* PLL_N = 432
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* PLL_P = 2
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* PLL_Q = 9
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* VDD(V) = 3.3
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* Main regulator output voltage = Scale1 mode
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* Flash Latency(WS) = 7
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* @param None
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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HAL_StatusTypeDef ret = HAL_OK;
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 25;
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RCC_OscInitStruct.PLL.PLLN = 432;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = 9;
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ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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/* Activate the OverDrive to reach the 216 MHz Frequency */
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ret = HAL_PWREx_EnableOverDrive();
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
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ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7);
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if(ret != HAL_OK)
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{
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while(1) { ; }
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}
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}
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/**
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* @brief This function is executed in case of error occurrence.
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* @param None
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* @retval None
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*/
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static void Error_Handler(void)
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{
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/* Turn LED3 on */
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BSP_LED_On(LED3);
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while (1)
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{
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}
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}
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/**
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* @brief ADC configuration
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* @note This function Configure the ADC peripheral
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1) Enable peripheral clocks
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2) Configure ADC Channel 12 pin as analog input
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3) DMA2_Stream0 channel2 configuration
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4) Configure ADC1 Channel 12
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5) Configure ADC2 Channel 12
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* @param None
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* @retval None
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*/
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static void ADC_Config(void)
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{
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ADC_ChannelConfTypeDef sConfig;
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ADC_MultiModeTypeDef mode;
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/*##-1- Configure the ADC2 peripheral ######################################*/
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AdcHandle2.Instance = ADCy;
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AdcHandle2.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV4;
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AdcHandle2.Init.Resolution = ADC_RESOLUTION_8B;
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AdcHandle2.Init.ScanConvMode = ENABLE;
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AdcHandle2.Init.ContinuousConvMode = ENABLE;
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AdcHandle2.Init.DiscontinuousConvMode = DISABLE;
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AdcHandle2.Init.NbrOfDiscConversion = 0;
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AdcHandle2.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
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AdcHandle2.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T1_CC1;
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AdcHandle2.Init.DataAlign = ADC_DATAALIGN_RIGHT;
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AdcHandle2.Init.NbrOfConversion = 1;
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AdcHandle2.Init.DMAContinuousRequests = ENABLE;
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AdcHandle2.Init.EOCSelection = ENABLE;
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if (HAL_ADC_Init(&AdcHandle2) != HAL_OK)
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{
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/* Initialization Error */
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Error_Handler();
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}
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/*##-2- Configure ADC2 regular channel #####################################*/
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sConfig.Channel = ADCxy_CHANNEL;
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sConfig.Rank = 1;
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sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
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sConfig.Offset = 0;
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if (HAL_ADC_ConfigChannel(&AdcHandle2, &sConfig) != HAL_OK)
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{
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/* Channel Configuration Error */
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Error_Handler();
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}
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/*##-3- Configure the ADC1 peripheral ######################################*/
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AdcHandle1.Instance = ADC1;
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AdcHandle1.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV4;
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AdcHandle1.Init.Resolution = ADC_RESOLUTION_8B;
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AdcHandle1.Init.ScanConvMode = DISABLE;
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AdcHandle1.Init.ContinuousConvMode = ENABLE;
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AdcHandle1.Init.DiscontinuousConvMode = DISABLE;
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AdcHandle1.Init.NbrOfDiscConversion = 0;
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AdcHandle1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
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AdcHandle1.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T1_CC1;
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AdcHandle1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
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AdcHandle1.Init.NbrOfConversion = 1;
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AdcHandle1.Init.DMAContinuousRequests = ENABLE;
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AdcHandle1.Init.EOCSelection = ENABLE;
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if (HAL_ADC_Init(&AdcHandle1) != HAL_OK)
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{
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/* Initialization Error */
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Error_Handler();
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}
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/*##-4- Configure ADC1 regular channel #####################################*/
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if (HAL_ADC_ConfigChannel(&AdcHandle1, &sConfig) != HAL_OK)
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{
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/* Channel Configuration Error */
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Error_Handler();
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}
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/*##-5- Configure Multimode ################################################*/
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mode.Mode = ADC_DUALMODE_INTERL;
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mode.DMAAccessMode = ADC_DMAACCESSMODE_3;
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mode.TwoSamplingDelay = ADC_TWOSAMPLINGDELAY_6CYCLES;
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if (HAL_ADCEx_MultiModeConfigChannel(&AdcHandle1, &mode) != HAL_OK)
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{
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/* Channel Configuration Error */
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Error_Handler();
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}
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}
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/**
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* @brief Conversion complete callback in non blocking mode
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* @param hadc : hadc handle
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* @note This example shows a simple way to report end of conversion, and
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* you can add your own implementation.
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* @retval None
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*/
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void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef *hadc)
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{
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/* Turn LED1 on: Transfer process is correct */
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BSP_LED_On(LED1);
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}
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/**
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* @brief Configure the MPU attributes
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* @param None
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* @retval None
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*/
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static void MPU_Config(void)
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{
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MPU_Region_InitTypeDef MPU_InitStruct;
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/* Disable the MPU */
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HAL_MPU_Disable();
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/* Configure the MPU as Strongly ordered for not defined regions */
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MPU_InitStruct.Enable = MPU_REGION_ENABLE;
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MPU_InitStruct.BaseAddress = 0x00;
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MPU_InitStruct.Size = MPU_REGION_SIZE_4GB;
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MPU_InitStruct.AccessPermission = MPU_REGION_NO_ACCESS;
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MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
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MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
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MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
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MPU_InitStruct.Number = MPU_REGION_NUMBER0;
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MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
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MPU_InitStruct.SubRegionDisable = 0x87;
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MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;
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HAL_MPU_ConfigRegion(&MPU_InitStruct);
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/* Enable the MPU */
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HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif
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/**
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* @brief CPU L1-Cache enable.
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* @param None
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* @retval None
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*/
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static void CPU_CACHE_Enable(void)
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{
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/* Enable I-Cache */
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SCB_EnableICache();
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/* Enable D-Cache */
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SCB_EnableDCache();
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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