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main.c
832 lines (720 loc) · 32.2 KB
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main.c
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/**
******************************************************************************
* @file main.c
* @author MCD Application Team
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
DAC_HandleTypeDef hdac1;
TIM_HandleTypeDef htim2;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
EXTI_HandleTypeDef hexti;
/* ADC handler declaration */
ADC_HandleTypeDef hadc2;
/* Variables for ADC conversion data */
__IO uint16_t aADCxConvertedData[ADC_CONVERTED_DATA_BUFFER_SIZE]; /* ADC group regular conversion data (array of data) */
/* Variables for ADC conversion data computation to physical values */
uint16_t aADCxConvertedData_Voltage_mVolt[ADC_CONVERTED_DATA_BUFFER_SIZE]; /* Value of voltage calculated from ADC conversion data (unit: mV) (array of data) */
/* Variable to report status of DMA transfer of ADC group regular conversions */
/* 0: DMA transfer is not completed */
/* 1: DMA transfer is completed */
/* 2: DMA transfer has not yet been started yet (initial state) */
__IO uint8_t ubDmaTransferStatus = 2; /* Variable set into DMA interruption callback */
/* Variable to manage push button on board: interface between ExtLine interruption and main program */
__IO uint8_t ubUserButtonClickEvent = RESET; /* Event detection: Set after User Button interrupt */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
static void MX_DAC1_Init(void);
static void MX_TIM2_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
static void Configure_ADC(void);
static void Generate_waveform_SW_update_Config(void);
static void Generate_waveform_SW_update(void);
static void EXTI14_IRQHandler_Config(void);
static void Exti14FallingCb(void);
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
*
* @retval None
*/
int main(void)
{
/* USER CODE BEGIN 1 */
uint32_t tmp_index_adc_converted_data = 0;
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initialize the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
if(IS_ENGINEERING_BOOT_MODE())
{
/* Configure the system clock */
SystemClock_Config();
}
/* USER CODE END Init */
/*HW semaphore Clock enable*/
__HAL_RCC_HSEM_CLK_ENABLE();
/* USER CODE BEGIN SysInit */
if(IS_ENGINEERING_BOOT_MODE())
{
/* Configure PMIC */
BSP_PMIC_Init();
BSP_PMIC_InitRegulators();
/* Configure VREFBUF */
__HAL_RCC_VREF_CLK_ENABLE();
HAL_SYSCFG_VREFBUF_HighImpedanceConfig(SYSCFG_VREFBUF_HIGH_IMPEDANCE_DISABLE);
HAL_SYSCFG_EnableVREFBUF();
}
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DAC1_Init();
MX_TIM2_Init();
/* USER CODE BEGIN 2 */
for (tmp_index_adc_converted_data = 0; tmp_index_adc_converted_data < ADC_CONVERTED_DATA_BUFFER_SIZE; tmp_index_adc_converted_data++)
{
aADCxConvertedData[tmp_index_adc_converted_data] = VAR_CONVERTED_DATA_INIT_VALUE;
}
/* Initialize LED on board */
BSP_LED_Init(LED7);
/* -2- Configure EXTI14 (connected to PA.14 pin) in interrupt mode */
EXTI14_IRQHandler_Config();
/* Configure ADC */
/* Note: This function configures the ADC but does not enable it. */
/* Only ADC internal voltage regulator is enabled by function */
/* "HAL_ADC_Init()". */
/* To activate ADC (ADC enable and ADC conversion start), use */
/* function "HAL_ADC_Start_xxx()". */
/* This is intended to optimize power consumption: */
/* 1. ADC configuration can be done once at the beginning */
/* (ADC disabled, minimal power consumption) */
/* 2. ADC enable (higher power consumption) can be done just before */
/* ADC conversions needed. */
/* Then, possible to perform successive ADC activation and */
/* deactivation without having to set again ADC configuration. */
Configure_ADC();
/* Run the ADC linear calibration in single-ended mode */
if (HAL_ADCEx_Calibration_Start(&hadc2,ADC_CALIB_OFFSET_LINEARITY, ADC_SINGLE_ENDED) != HAL_OK)
{
/* Calibration Error */
Error_Handler();
}
/* Configure the DAC peripheral and generate a constant voltage of Vdda/2. */
Generate_waveform_SW_update_Config();
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
/*## Enable Timer ########################################################*/
if (HAL_TIM_Base_Start(&htim2) != HAL_OK)
{
/* Counter enable error */
Error_Handler();
}
/*## Start ADC conversions ###############################################*/
/* Start ADC group regular conversion with DMA */
if (HAL_ADC_Start_DMA(&hadc2,
(uint32_t *)aADCxConvertedData,
ADC_CONVERTED_DATA_BUFFER_SIZE
) != HAL_OK)
{
/* ADC conversion start error */
Error_Handler();
}
while (1)
{
/* Modifies modifies the voltage level, to generate a waveform circular, */
/* shape of ramp: Voltage is increasing at each press on push button, */
/* from 0 to maximum range (Vdda) in 4 steps, then starting back from 0V. */
/* Voltage is updated incrementally at each call of this function. */
Generate_waveform_SW_update();
/* Wait for event on push button to perform following actions */
while ((ubUserButtonClickEvent) == RESET)
{
}
/* Reset variable for next loop iteration (with debounce) */
HAL_Delay(200);
ubUserButtonClickEvent = RESET;
/* Note: Variable "ubUserButtonClickEvent" is set into push button */
/* IRQ handler, refer to function "HAL_GPIO_EXTI_Callback()". */
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
/* Note: LED state depending on DMA transfer status is set into DMA */
/* IRQ handler, refer to functions "HAL_ADC_ConvCpltCallback()" */
/* and "HAL_ADC_ConvHalfCpltCallback()". */
/* Note: ADC conversions data are stored into array */
/* "aADCConvertedData" */
/* (for debug: see variable content into watch window). */
/* Note: ADC conversion data are computed to physical values */
/* into array "aADCxConvertedData_Voltage_mVolt" */
/* using helper macro "__ADC_CALC_DATA_VOLTAGE()". */
/* (for debug: see variable content into watch window). */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/**Configure LSE Drive Capability
*/
HAL_PWR_EnableBkUpAccess();
__HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_MEDIUMHIGH);
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_HSE
|RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS_DIG;
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.HSIDivValue = RCC_HSI_DIV1;
/**PLL1 Config
*/
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLL12SOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 3;
RCC_OscInitStruct.PLL.PLLN = 81;
RCC_OscInitStruct.PLL.PLLP = 1;
RCC_OscInitStruct.PLL.PLLQ = 1;
RCC_OscInitStruct.PLL.PLLR = 1;
RCC_OscInitStruct.PLL.PLLFRACV = 0x800;
RCC_OscInitStruct.PLL.PLLMODE = RCC_PLL_FRACTIONAL;
RCC_OscInitStruct.PLL.RPDFN_DIS = RCC_RPDFN_DIS_DISABLED;
RCC_OscInitStruct.PLL.TPDFN_DIS = RCC_TPDFN_DIS_DISABLED;
/**PLL2 Config
*/
RCC_OscInitStruct.PLL2.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL2.PLLSource = RCC_PLL12SOURCE_HSE;
RCC_OscInitStruct.PLL2.PLLM = 3;
RCC_OscInitStruct.PLL2.PLLN = 66;
RCC_OscInitStruct.PLL2.PLLP = 2;
RCC_OscInitStruct.PLL2.PLLQ = 1;
RCC_OscInitStruct.PLL2.PLLR = 1;
RCC_OscInitStruct.PLL2.PLLFRACV = 0x1400;
RCC_OscInitStruct.PLL2.PLLMODE = RCC_PLL_FRACTIONAL;
RCC_OscInitStruct.PLL2.RPDFN_DIS = RCC_RPDFN_DIS_DISABLED;
RCC_OscInitStruct.PLL2.TPDFN_DIS = RCC_TPDFN_DIS_DISABLED;
/**PLL3 Config
*/
RCC_OscInitStruct.PLL3.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL3.PLLSource = RCC_PLL3SOURCE_HSE;
RCC_OscInitStruct.PLL3.PLLM = 2;
RCC_OscInitStruct.PLL3.PLLN = 34;
RCC_OscInitStruct.PLL3.PLLP = 2;
RCC_OscInitStruct.PLL3.PLLQ = 17;
RCC_OscInitStruct.PLL3.PLLR = 37;
RCC_OscInitStruct.PLL3.PLLRGE = RCC_PLL3IFRANGE_1;
RCC_OscInitStruct.PLL3.PLLFRACV = 0x1A04;
RCC_OscInitStruct.PLL3.PLLMODE = RCC_PLL_FRACTIONAL;
RCC_OscInitStruct.PLL3.RPDFN_DIS = RCC_RPDFN_DIS_DISABLED;
RCC_OscInitStruct.PLL3.TPDFN_DIS = RCC_TPDFN_DIS_DISABLED;
/**PLL4 Config
*/
RCC_OscInitStruct.PLL4.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL4.PLLSource = RCC_PLL4SOURCE_HSE;
RCC_OscInitStruct.PLL4.PLLM = 4;
RCC_OscInitStruct.PLL4.PLLN = 99;
RCC_OscInitStruct.PLL4.PLLP = 6;
RCC_OscInitStruct.PLL4.PLLQ = 8;
RCC_OscInitStruct.PLL4.PLLR = 8;
RCC_OscInitStruct.PLL4.PLLRGE = RCC_PLL4IFRANGE_0;
RCC_OscInitStruct.PLL4.PLLFRACV = 0;
RCC_OscInitStruct.PLL4.PLLMODE = RCC_PLL_INTEGER;
RCC_OscInitStruct.PLL4.RPDFN_DIS = RCC_RPDFN_DIS_DISABLED;
RCC_OscInitStruct.PLL4.TPDFN_DIS = RCC_TPDFN_DIS_DISABLED;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/**RCC Clock Config
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_ACLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
|RCC_CLOCKTYPE_PCLK3|RCC_CLOCKTYPE_PCLK4
|RCC_CLOCKTYPE_PCLK5|RCC_CLOCKTYPE_MPU;
RCC_ClkInitStruct.MPUInit.MPU_Clock = RCC_MPUSOURCE_PLL1;
RCC_ClkInitStruct.MPUInit.MPU_Div = RCC_MPU_DIV2;
RCC_ClkInitStruct.AXISSInit.AXI_Clock = RCC_AXISSOURCE_PLL2;
RCC_ClkInitStruct.AXISSInit.AXI_Div = RCC_AXI_DIV1;
RCC_ClkInitStruct.MCUInit.MCU_Clock = RCC_MCUSSOURCE_PLL3;
RCC_ClkInitStruct.MCUInit.MCU_Div = RCC_MCU_DIV1;
RCC_ClkInitStruct.APB4_Div = RCC_APB4_DIV2;
RCC_ClkInitStruct.APB5_Div = RCC_APB5_DIV4;
RCC_ClkInitStruct.APB1_Div = RCC_APB1_DIV2;
RCC_ClkInitStruct.APB2_Div = RCC_APB2_DIV2;
RCC_ClkInitStruct.APB3_Div = RCC_APB3_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/**Set the HSE division factor for RTC clock
*/
__HAL_RCC_RTC_HSEDIV(24);
}
/* DAC1 init function */
static void MX_DAC1_Init(void)
{
DAC_ChannelConfTypeDef sConfig;
/**DAC Initialization
*/
hdac1.Instance = DAC1;
if (HAL_DAC_Init(&hdac1) != HAL_OK)
{
Error_Handler();
}
/**DAC channel OUT1 config
*/
sConfig.DAC_HighFrequency = DAC_HIGH_FREQUENCY_INTERFACE_MODE_DISABLE;
sConfig.DAC_SampleAndHold = DAC_SAMPLEANDHOLD_DISABLE;
sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_DISABLE;
sConfig.DAC_ConnectOnChipPeripheral = DAC_CHIPCONNECT_ENABLE;
sConfig.DAC_UserTrimming = DAC_TRIMMING_FACTORY;
if (HAL_DAC_ConfigChannel(&hdac1, &sConfig, DAC_CHANNEL_1) != HAL_OK)
{
Error_Handler();
}
}
/* TIM2 init function */
static void MX_TIM2_Init(void)
{
TIM_ClockConfigTypeDef sClockSourceConfig;
TIM_MasterConfigTypeDef sMasterConfig;
htim2.Instance = TIM2;
htim2.Init.Prescaler = 1;
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
htim2.Init.Period = 97999;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
USB_DM1 ------> USBH_HS1_DM
USB_DP1 ------> USBH_HS1_DP
*/
static void MX_GPIO_Init(void)
{
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOI_CLK_ENABLE();
}
/* USER CODE BEGIN 4 */
/**
* @brief Configures EXTI line 14 (connected to PA.14 pin) in interrupt mode
* @param None
* @retval None
*/
static void EXTI14_IRQHandler_Config(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
EXTI_ConfigTypeDef EXTI_ConfigStructure;
/* Enable GPIOA clock */
__HAL_RCC_GPIOA_CLK_ENABLE();
/* Configure PA.14 pin as input floating */
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Pin = USER_BUTTON_PIN;
PERIPH_LOCK(GPIOA);
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
PERIPH_UNLOCK(GPIOA);
/* Set configuration except Interrupt and Event mask of Exti line 14*/
EXTI_ConfigStructure.Line = EXTI_LINE_14;
EXTI_ConfigStructure.Trigger = EXTI_TRIGGER_FALLING;
EXTI_ConfigStructure.GPIOSel = EXTI_GPIOA;
EXTI_ConfigStructure.Mode = EXTI_MODE_C2_INTERRUPT;
PERIPH_LOCK(EXTI);
HAL_EXTI_SetConfigLine(&hexti, &EXTI_ConfigStructure);
PERIPH_UNLOCK(EXTI);
/* Register callback to treat Exti interrupts in user Exti14FallingCb function */
HAL_EXTI_RegisterCallback(&hexti, HAL_EXTI_FALLING_CB_ID, Exti14FallingCb);
/* Enable and set line 14 Interrupt to the lowest priority */
HAL_NVIC_SetPriority(EXTI14_IRQn, (DEFAULT_IRQ_PRIO + 2U), 0);
HAL_NVIC_EnableIRQ(EXTI14_IRQn);
}
/**
* @brief Configure ADC (ADC instance: ADCx) and GPIO used by ADC channels.
* Configuration of GPIO:
* - Pin: PA.04 (on this STM32 device, ADC2 channel 16 is mapped on this GPIO)
* - Mode: analog
* Configuration of ADC:
* - Common to several ADC:
* - Conversion clock: Synchronous from PCLK
* - Internal path: None (default configuration from reset state)
* - Multimode
* Feature not used: all parameters let to default configuration from reset state
* - Mode Independent (default configuration from reset state)
* - DMA transfer: Disabled (default configuration from reset state)
* - Delay sampling phases 1 ADC clock cycle (default configuration from reset state)
* - ADC instance
* - Resolution: 12 bits (default configuration from reset state)
* - Data alignment: right aligned (default configuration from reset state)
* - Low power mode: disabled (default configuration from reset state)
* - Offset: none (default configuration from reset state)
* - Group regular
* - Trigger source: SW start
* - Trigger edge: not applicable with SW start
* - Continuous mode: single conversion (default configuration from reset state)
* - DMA transfer: enabled, unlimited requests
* - Overrun: data overwritten
* - Sequencer length: disabled: 1 rank (default configuration from reset state)
* - Sequencer discont: disabled: sequence done in 1 scan (default configuration from reset state)
* - Sequencer rank 1: ADCx ADCx_CHANNELa
* - Group injected
* Feature not used: all parameters let to default configuration from reset state
* - Trigger source: SW start (default configuration from reset state)
* - Trigger edge: not applicable with SW start
* - Auto injection: disabled (default configuration from reset state)
* - Contexts queue: disabled (default configuration from reset state)
* - Sequencer length: disabled: 1 rank (default configuration from reset state)
* - Sequencer discont: disabled: sequence done in 1 scan (default configuration from reset state)
* - Sequencer rank 1: first channel available (default configuration from reset state)
* - Channel
* - Sampling time: ADCx ADCx_CHANNELa set to sampling time 160.5 ADC clock cycles (on this STM32 serie, sampling time is channel wise)
* - Differential mode: single ended (default configuration from reset state)
* - Analog watchdog
* Feature not used: all parameters let to default configuration from reset state
* - AWD number: 1
* - Monitored channels: none (default configuration from reset state)
* - Threshold high: 0x000 (default configuration from reset state)
* - Threshold low: 0xFFF (default configuration from reset state)
* - Oversampling
* Feature not used: all parameters let to default configuration from reset state
* - Scope: none (default configuration from reset state)
* - Discontinuous mode: disabled (default configuration from reset state)
* - Ratio: 2 (default configuration from reset state)
* - Shift: none (default configuration from reset state)
* - Interruptions
* None: with HAL driver, ADC interruptions are set using
* function "HAL_ADC_start_xxx()".
* @note Using HAL driver, configuration of GPIO used by ADC channels,
* NVIC and clock source at top level (RCC)
* are not implemented into this function,
* must be implemented into function "HAL_ADC_MspInit()".
* @param None
* @retval None
*/
__STATIC_INLINE void Configure_ADC(void)
{
ADC_ChannelConfTypeDef sConfig;
/*## Configuration of ADC ##################################################*/
/*## Configuration of ADC hierarchical scope: ##############################*/
/*## common to several ADC, ADC instance, ADC group regular ###############*/
/* Set ADC instance of HAL ADC handle hadc2 */
hadc2.Instance = ADCx;
/* Configuration of HAL ADC handle init structure: */
/* parameters of scope ADC instance and ADC group regular. */
/* Note: On this STM32 serie, ADC group regular sequencer is */
/* fully configurable: sequencer length and each rank */
/* affectation to a channel are configurable. */
hadc2.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV2;
hadc2.Init.Resolution = ADC_RESOLUTION_12B;
hadc2.Init.ScanConvMode = ADC_SCAN_DISABLE; /* Sequencer disabled (ADC conversion on only 1 channel: channel set on rank 1) */
hadc2.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc2.Init.LowPowerAutoWait = DISABLE;
hadc2.Init.ContinuousConvMode = DISABLE; /* Continuous mode disabled to have only 1 conversion at each conversion trig */
hadc2.Init.NbrOfConversion = 1; /* Parameter discarded because sequencer is disabled */
hadc2.Init.DiscontinuousConvMode = DISABLE; /* Parameter discarded because sequencer is disabled */
hadc2.Init.NbrOfDiscConversion = 1; /* Parameter discarded because sequencer is disabled */
hadc2.Init.ExternalTrigConv = ADC_EXTERNALTRIG_T2_TRGO; /* Trig of conversion start done by external event */
hadc2.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING; /* Parameter discarded because trig of conversion by software start (no external event) */
hadc2.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DMA_CIRCULAR;
hadc2.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
hadc2.Init.OversamplingMode = DISABLE;
if (HAL_ADC_DeInit(&hadc2) != HAL_OK)
{
/* ADC Deinitialization error */
Error_Handler();
}
if (HAL_ADC_Init(&hadc2) != HAL_OK)
{
/* ADC initialization error */
Error_Handler();
}
/*## Configuration of ADC hierarchical scope: ##############################*/
/*## ADC group injected and channels mapped on group injected ##############*/
/* Note: ADC group injected not used and not configured in this example. */
/* Refer to other ADC examples using this feature. */
/* Note: Call of the functions below are commented because they are */
/* useless in this example: */
/* setting corresponding to default configuration from reset state. */
/*## Configuration of ADC hierarchical scope: ##############################*/
/*## channels mapped on group regular ##############################*/
/* Configuration of channel on ADCx regular group on sequencer rank 1 */
/* Note: On this STM32 serie, ADC group regular sequencer is */
/* fully configurable: sequencer length and each rank */
/* affectation to a channel are configurable. */
/* Note: Considering IT occurring after each ADC conversion */
/* (IT by ADC group regular end of unitary conversion), */
/* select sampling time and ADC clock with sufficient */
/* duration to not create an overhead situation in IRQHandler. */
sConfig.Channel = ADCx_CHANNELa; /* ADC channel selection */
sConfig.Rank = ADC_REGULAR_RANK_1; /* ADC group regular rank in which is mapped the selected ADC channel */
sConfig.SamplingTime = ADC_SAMPLETIME_810CYCLES_5; /* ADC channel sampling time */
sConfig.SingleDiff = ADC_SINGLE_ENDED; /* ADC channel differential mode */
sConfig.OffsetNumber = ADC_OFFSET_NONE; /* ADC channel affected to offset number */
sConfig.Offset = 0; /* Parameter discarded because offset correction is disabled */
if (HAL_ADC_ConfigChannel(&hadc2, &sConfig) != HAL_OK)
{
/* Channel Configuration Error */
Error_Handler();
}
/*## Configuration of ADC hierarchical scope: multimode ####################*/
/* Note: ADC multimode not used and not configured in this example. */
/* Refer to other ADC examples using this feature. */
/*## Configuration of ADC transversal scope: analog watchdog ###############*/
/* Note: ADC analog watchdog not used and not configured in this example. */
/* Refer to other ADC examples using this feature. */
/*## Configuration of ADC transversal scope: oversampling ##################*/
/* Note: ADC oversampling not used and not configured in this example. */
/* Refer to other ADC examples using this feature. */
}
/**
* @brief For this example, generate a waveform voltage on a spare DAC
* channel, so user has just to connect a wire between DAC channel
* (pin PA4) and ADC channel (pin PA4) to run this example.
* (this prevents the user from resorting to an external signal
* generator).
* This function configures the DAC and generates a constant voltage of Vdda/2.
* @note Voltage level can be modifying afterwards using function
* "Generate_waveform_SW_update()".
* @param None
* @retval None
*/
static void Generate_waveform_SW_update_Config(void)
{
/* Set DAC Channel data register: channel corresponding to ADC channel ADC2_CHANNEL_16 */
/* Set DAC output to 1/2 of full range (4095 <=> Vdda=3.3V): 2048 <=> 1.65V */
if (HAL_DAC_SetValue(&hdac1, DAC_CHANNEL_1, DAC_ALIGN_12B_R, DIGITAL_SCALE_12BITS/2) != HAL_OK)
{
/* Setting value Error */
Error_Handler();
}
/* Enable DAC Channel: channel corresponding to ADC channel ADC2_CHANNEL_16 */
if (HAL_DAC_Start(&hdac1, DAC_CHANNEL_1) != HAL_OK)
{
/* Start Error */
Error_Handler();
}
}
/**
* @brief For this example, generate a waveform voltage on a spare DAC
* channel, so user has just to connect a wire between DAC channel
* (pin PA4) and ADC channel (pin PA4) to run this example.
* (this prevents the user from resorting to an external signal
* generator).
* This function modifies the voltage level, to generate a
* waveform circular, shape of ramp: Voltage is increasing at each
* press on push button, from 0 to maximum range (Vdda) in 4 steps,
* then starting back from 0V.
* Voltage is updated incrementally at each call of this function.
* @note Preliminarily, DAC must be configured once using
* function "Generate_waveform_SW_update_Config()".
* @param None
* @retval None
*/
static void Generate_waveform_SW_update(void)
{
static uint8_t ub_dac_steps_count = 0; /* Count number of clicks: Incremented after User Button interrupt */
/* Set DAC voltage on channel corresponding to ADC2_CHANNEL_16 */
/* in function of user button clicks count. */
/* Set DAC output on 5 voltage levels, successively to: */
/* - minimum of full range (0 <=> ground 0V) */
/* - 1/4 of full range (4095 <=> Vdda=3.3V): 1023 <=> 0.825V */
/* - 1/2 of full range (4095 <=> Vdda=3.3V): 2048 <=> 1.65V */
/* - 3/4 of full range (4095 <=> Vdda=3.3V): 3071 <=> 2.475V */
/* - maximum of full range (4095 <=> Vdda=3.3V) */
if (HAL_DAC_SetValue(&hdac1,
DAC_CHANNEL_1,
DAC_ALIGN_12B_R,
((DIGITAL_SCALE_12BITS * ub_dac_steps_count) / 4)
) != HAL_OK)
{
/* Start Error */
Error_Handler();
}
/* Wait for voltage settling time */
HAL_Delay(1);
/* Manage ub_dac_steps_count to increment it in 4 steps and circularly. */
if (ub_dac_steps_count < 4)
{
ub_dac_steps_count++;
}
else
{
ub_dac_steps_count = 0;
}
}
/******************************************************************************/
/* USER IRQ HANDLER TREATMENT */
/******************************************************************************/
/**
* @brief EXTI line detection callbacks
* @param GPIO_Pin: Specifies the pins connected EXTI line
* @retval None
*/
static void Exti14FallingCb(void)
{
/* Set variable to report push button event to main program */
ubUserButtonClickEvent = SET;
}
/**
* @brief Conversion complete callback in non blocking mode
* @param hadc: ADC handle
* @note This example shows a simple way to report end of conversion
* and get conversion result. You can add your own implementation.
* @retval None
*/
void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef *hadc)
{
uint32_t tmp_index = 0;
/* Computation of ADC conversions raw data to physical values */
/* using LL ADC driver helper macro. */
/* Management of the 2nd half of the buffer */
for (tmp_index = (ADC_CONVERTED_DATA_BUFFER_SIZE/2); tmp_index < ADC_CONVERTED_DATA_BUFFER_SIZE; tmp_index++)
{
aADCxConvertedData_Voltage_mVolt[tmp_index] = __ADC_CALC_DATA_VOLTAGE(VDDA_APPLI, aADCxConvertedData[tmp_index]);
}
/* Update status variable of DMA transfer */
ubDmaTransferStatus = 1;
/* Set LED depending on DMA transfer status */
/* - Turn-on if DMA transfer is completed */
/* - Turn-off if DMA transfer is not completed */
BSP_LED_On(LED7);
}
/**
* @brief Conversion DMA half-transfer callback in non blocking mode
* @note This example shows a simple way to report end of conversion
* and get conversion result. You can add your own implementation.
* @retval None
*/
void HAL_ADC_ConvHalfCpltCallback(ADC_HandleTypeDef *hadc)
{
uint32_t tmp_index = 0;
/* Computation of ADC conversions raw data to physical values */
/* using LL ADC driver helper macro. */
/* Management of the 1st half of the buffer */
for (tmp_index = 0; tmp_index < (ADC_CONVERTED_DATA_BUFFER_SIZE/2); tmp_index++)
{
aADCxConvertedData_Voltage_mVolt[tmp_index] = __ADC_CALC_DATA_VOLTAGE(VDDA_APPLI, aADCxConvertedData[tmp_index]);
}
/* Update status variable of DMA transfer */
ubDmaTransferStatus = 0;
/* Set LED depending on DMA transfer status */
/* - Turn-on if DMA transfer is completed */
/* - Turn-off if DMA transfer is not completed */
BSP_LED_Off(LED7);
}
/**
* @brief ADC error callback in non blocking mode
* (ADC conversion with interruption or transfer by DMA)
* @param hadc: ADC handle
* @retval None
*/
void HAL_ADC_ErrorCallback(ADC_HandleTypeDef *hadc)
{
/* In case of ADC error, call main error handler */
Error_Handler();
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param file: The file name as string.
* @param line: The line in file as a number.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
/* Toggle LED7 */
BSP_LED_Off(LED7);
HAL_Delay(800);
BSP_LED_On(LED7);
HAL_Delay(10);
BSP_LED_Off(LED7);
HAL_Delay(180);
BSP_LED_On(LED7);
HAL_Delay(10);
}
/* USER CODE END Error_Handler_Debug */
}
#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 CODE BEGIN 6 */
/* 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) */
Error_Handler();
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/