DMA stops working when I enable IWDG STM32F030F4P6

[EduPereira]

DMA stops working when I enable IWDG in .ioc on my STM32, even when commenting out the IWDG initialization for testing.

DMA stops working when I enable IWDG in .ioc on my STM32, even when commenting out the IWDG initialization for testing.

Before enabling IWDG, DMA is functioning normally.

If anyone can help me, I don't have much experience with stm32, I'm just starting out.

/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/

#include "main.h"

/* Private includes ----------------------------------------------------------*/

/* USER CODE BEGIN Includes */

#include <stdio.h>

#include <string.h>

#include "microwave_sensor.h"

/* USER CODE END Includes */

/* Private define ------------------------------------------------------------*/

/* USER CODE BEGIN PD */

#define ADC_CHANNELS 2

/* USER CODE END PD */

/* Private variables ---------------------------------------------------------*/

ADC_HandleTypeDef hadc;

DMA_HandleTypeDef hdma_adc;

IWDG_HandleTypeDef hiwdg;

UART_HandleTypeDef huart1;

/* USER CODE BEGIN PV */

uint16_t adc_buffer[ADC_CHANNELS];

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/

void SystemClock_Config(void);

static void MX_GPIO_Init(void);

static void MX_DMA_Init(void);

static void MX_ADC_Init(void);

static void MX_USART1_UART_Init(void);

static void MX_IWDG_Init(void);

int main(void)

{

HAL_Init();

SystemClock_Config();

MX_GPIO_Init();

MX_DMA_Init();

MX_ADC_Init();

MX_USART1_UART_Init();

//MX_IWDG_Init();

HAL_ADCEx_Calibration_Start(&hadc);

HAL_ADC_Start_DMA(&hadc, (uint32_t*)adc_buffer, ADC_CHANNELS);

MicrowaveSensor_Init();

while (1)

{

Read_trimpot();

MicrowaveSensor_Config();

MicrowaveSensor_Read();

HAL_Delay(10); // Atualiza a cada 0,5s

}

}

void SystemClock_Config(void)

{

RCC_OscInitTypeDef RCC_OscInitStruct = {0};

RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

/** Initializes the RCC Oscillators according to the specified parameters

* in the RCC_OscInitTypeDef structure.

*/

RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_HSI14

|RCC_OSCILLATORTYPE_LSI;

RCC_OscInitStruct.HSIState = RCC_HSI_ON;

RCC_OscInitStruct.HSI14State = RCC_HSI14_ON;

RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;

RCC_OscInitStruct.HSI14CalibrationValue = 16;

RCC_OscInitStruct.LSIState = RCC_LSI_ON;

RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;

if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)

{

Error_Handler();

}

/** Initializes the CPU, AHB and APB buses clocks

*/

RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK

|RCC_CLOCKTYPE_PCLK1;

RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;

RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;

RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)

{

Error_Handler();

}

PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;

PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK1;

if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)

{

Error_Handler();

}

}

static void MX_ADC_Init(void)

{

/* USER CODE BEGIN ADC_Init 0 */

/* USER CODE END ADC_Init 0 */

ADC_ChannelConfTypeDef sConfig = {0};

/* USER CODE BEGIN ADC_Init 1 */

/* USER CODE END ADC_Init 1 */

/** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)

*/

hadc.Instance = ADC1;

hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;

hadc.Init.Resolution = ADC_RESOLUTION_12B;

hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;

hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;

hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV;

hadc.Init.LowPowerAutoWait = DISABLE;

hadc.Init.LowPowerAutoPowerOff = DISABLE;

hadc.Init.ContinuousConvMode = ENABLE;

hadc.Init.DiscontinuousConvMode = DISABLE;

hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;

hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;

hadc.Init.DMAContinuousRequests = DISABLE;

hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED;

if (HAL_ADC_Init(&hadc) != HAL_OK)

{

Error_Handler();

}

/** Configure for the selected ADC regular channel to be converted.

*/

sConfig.Channel = ADC_CHANNEL_0;

sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;

sConfig.SamplingTime = ADC_SAMPLETIME_239CYCLES_5;

if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)

{

Error_Handler();

}

/** Configure for the selected ADC regular channel to be converted.

*/

sConfig.Channel = ADC_CHANNEL_1;

if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)

{

Error_Handler();

}

/* USER CODE BEGIN ADC_Init 2 */

/* USER CODE END ADC_Init 2 */

}

static void MX_IWDG_Init(void)

{

/* USER CODE BEGIN IWDG_Init 0 */

/* USER CODE END IWDG_Init 0 */

/* USER CODE BEGIN IWDG_Init 1 */

/* USER CODE END IWDG_Init 1 */

hiwdg.Instance = IWDG;

hiwdg.Init.Prescaler = IWDG_PRESCALER_4;

hiwdg.Init.Window = 4095;

hiwdg.Init.Reload = 4095;

if (HAL_IWDG_Init(&hiwdg) != HAL_OK)

{

Error_Handler();

}

/* USER CODE BEGIN IWDG_Init 2 */

/* USER CODE END IWDG_Init 2 */

}

static void MX_USART1_UART_Init(void)

{

/* USER CODE BEGIN USART1_Init 0 */

/* USER CODE END USART1_Init 0 */

/* USER CODE BEGIN USART1_Init 1 */

/* USER CODE END USART1_Init 1 */

huart1.Instance = USART1;

huart1.Init.BaudRate = 115200;

huart1.Init.WordLength = UART_WORDLENGTH_8B;

huart1.Init.StopBits = UART_STOPBITS_1;

huart1.Init.Parity = UART_PARITY_NONE;

huart1.Init.Mode = UART_MODE_TX_RX;

huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;

huart1.Init.OverSampling = UART_OVERSAMPLING_16;

huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;

huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;

if (HAL_UART_Init(&huart1) != HAL_OK)

{

Error_Handler();

}

/* USER CODE BEGIN USART1_Init 2 */

/* USER CODE END USART1_Init 2 */

}

/**

* Enable DMA controller clock

*/

static void MX_DMA_Init(void)

{

/* DMA controller clock enable */

__HAL_RCC_DMA1_CLK_ENABLE();

/* DMA interrupt init */

/* DMA1_Channel1_IRQn interrupt configuration */

HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);

HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);

}

static void MX_GPIO_Init(void)

{

GPIO_InitTypeDef GPIO_InitStruct = {0};

/* USER CODE BEGIN MX_GPIO_Init_1 */

/* USER CODE END MX_GPIO_Init_1 */

/* GPIO Ports Clock Enable */

__HAL_RCC_GPIOA_CLK_ENABLE();

__HAL_RCC_GPIOB_CLK_ENABLE();

/*Configure GPIO pin Output Level */

HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);

/*Configure GPIO pin : PA5 */

GPIO_InitStruct.Pin = GPIO_PIN_5;

GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;

GPIO_InitStruct.Pull = GPIO_NOPULL;

GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

/*Configure GPIO pin : PB1 */

GPIO_InitStruct.Pin = GPIO_PIN_1;

GPIO_InitStruct.Mode = GPIO_MODE_INPUT;

GPIO_InitStruct.Pull = GPIO_PULLDOWN;

HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

/* USER CODE BEGIN MX_GPIO_Init_2 */

/* USER CODE END MX_GPIO_Init_2 */

}

void Error_Handler(void)

{

/* USER CODE BEGIN Error_Handler_Debug */

/* User can add his own implementation to report the HAL error return state */

__disable_irq();

while (1)

{

}

/* 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) */

/* USER CODE END 6 */

}

#endif /* USE_FULL_ASSERT */