STM32h757xih6 Controller Ethernet pinging data tranfer issue getting hardfault error

[Nagavani]

I am using STM32h757xih6 Controller Ethernet pinging data transfer issue came by using lwip and udp protocol getting hard fault handler (polling method) 

[Andrew Neil]

Welcome to the forum.

Please supply more details - see: How to write your question to maximize your chances to find a solution

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@Nagavani wrote:

getting hard fault 

---

See: debugging Cortex-M Hard Faults.

See also: LwIP debug & diagnostics.

PS:

Have you seen these Knowledge Base articles: 

• How to create a project for STM32H7 with Ethernet and LwIP stack 
• Ethernet not working on STM32H7x3
• STM32H7 configuration tips and tricks

[TDK]

What do you want us to do about it? It's your code, debug the hard fault to understand why and address the issue.

Likely a memory overflow or stack corruption.

[Nagavani]

hardfault handlereth clock configurationeth addressesmpu configuration

[Nagavani]

/* USER CODE BEGIN Header */

/**

******************************************************************************

* @file : main.c

* @brief : Main program body

******************************************************************************

* @attention

*

* Copyright (c) 2026 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.

*

******************************************************************************

*/

/* USER CODE END Header */

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

#include "main.h"

#include "lwip.h"



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

/* USER CODE BEGIN Includes */

#include <string.h>

/* USER CODE END Includes */



/* Private typedef -----------------------------------------------------------*/

/* USER CODE BEGIN PTD */



/* USER CODE END PTD */



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

/* USER CODE BEGIN PD */



/* DUAL_CORE_BOOT_SYNC_SEQUENCE: Define for dual core boot synchronization */

/* demonstration code based on hardware semaphore */

/* This define is present in both CM7/CM4 projects */

/* To comment when developping/debugging on a single core */

//#define DUAL_CORE_BOOT_SYNC_SEQUENCE



#if defined(DUAL_CORE_BOOT_SYNC_SEQUENCE)

#ifndef HSEM_ID_0

#define HSEM_ID_0 (0U) /* HW semaphore 0*/

#endif

#endif /* DUAL_CORE_BOOT_SYNC_SEQUENCE */



/* USER CODE END PD */



/* Private macro -------------------------------------------------------------*/

/* USER CODE BEGIN PM */



/* USER CODE END PM */



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



UART_HandleTypeDef huart1;



/* USER CODE BEGIN PV */



/* USER CODE END PV */



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

void SystemClock_Config(void);

static void MPU_Config(void);

static void MX_GPIO_Init(void);

static void MX_USART1_UART_Init(void);

/* USER CODE BEGIN PFP */



/* USER CODE END PFP */



/* Private user code ---------------------------------------------------------*/

/* USER CODE BEGIN 0 */



/* USER CODE END 0 */



/**

* @brief The application entry point.

* @retval int

*/

int main(void)

{



/* USER CODE BEGIN 1 */



/* USER CODE END 1 */

/* USER CODE BEGIN Boot_Mode_Sequence_0 */

#if defined(DUAL_CORE_BOOT_SYNC_SEQUENCE)

int32_t timeout;

#endif /* DUAL_CORE_BOOT_SYNC_SEQUENCE */

/* USER CODE END Boot_Mode_Sequence_0 */



/* MPU Configuration--------------------------------------------------------*/

MPU_Config();



/* USER CODE BEGIN Boot_Mode_Sequence_1 */

#if defined(DUAL_CORE_BOOT_SYNC_SEQUENCE)

/* Wait until CPU2 boots and enters in stop mode or timeout*/

timeout = 0xFFFF;

while((__HAL_RCC_GET_FLAG(RCC_FLAG_D2CKRDY) != RESET) && (timeout-- > 0));

if ( timeout < 0 )

{

Error_Handler();

}

#endif /* DUAL_CORE_BOOT_SYNC_SEQUENCE */

/* USER CODE END Boot_Mode_Sequence_1 */

/* MCU Configuration--------------------------------------------------------*/



/* Reset of all peripherals, Initializes the Flash interface and the Systick. */

HAL_Init();



/* USER CODE BEGIN Init */



/* USER CODE END Init */



/* Configure the system clock */

SystemClock_Config();

/* USER CODE BEGIN Boot_Mode_Sequence_2 */

#if defined(DUAL_CORE_BOOT_SYNC_SEQUENCE)

/* When system initialization is finished, Cortex-M7 will release Cortex-M4 by means of

HSEM notification */

/*HW semaphore Clock enable*/

__HAL_RCC_HSEM_CLK_ENABLE();

/*Take HSEM */

HAL_HSEM_FastTake(HSEM_ID_0);

/*Release HSEM in order to notify the CPU2(CM4)*/

HAL_HSEM_Release(HSEM_ID_0,0);

/* wait until CPU2 wakes up from stop mode */

timeout = 0xFFFF;

while((__HAL_RCC_GET_FLAG(RCC_FLAG_D2CKRDY) == RESET) && (timeout-- > 0));

if ( timeout < 0 )

{

Error_Handler();

}

#endif /* DUAL_CORE_BOOT_SYNC_SEQUENCE */

/* USER CODE END Boot_Mode_Sequence_2 */



/* USER CODE BEGIN SysInit */



/* USER CODE END SysInit */



/* Initialize all configured peripherals */

MX_GPIO_Init();

MX_USART1_UART_Init();

MX_LWIP_Init();

/* USER CODE BEGIN 2 */



/* USER CODE END 2 */



/* Infinite loop */

/* USER CODE BEGIN WHILE */

while (1)

{

/* USER CODE END WHILE */



/* USER CODE BEGIN 3 */

MX_LWIP_Process();

}

/* USER CODE END 3 */

}



/**

* @brief System Clock Configuration

* @retval None

*/

void SystemClock_Config(void)

{

RCC_OscInitTypeDef RCC_OscInitStruct = {0};

RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};



/** Supply configuration update enable

*/

HAL_PWREx_ConfigSupply(PWR_DIRECT_SMPS_SUPPLY);



/** Configure the main internal regulator output voltage

*/

__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);



while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}



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

* in the RCC_OscInitTypeDef structure.

*/

RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;

RCC_OscInitStruct.HSIState = RCC_HSI_DIV1;

RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;

RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;

RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;

RCC_OscInitStruct.PLL.PLLM = 4;

RCC_OscInitStruct.PLL.PLLN = 50;

RCC_OscInitStruct.PLL.PLLP = 2;

RCC_OscInitStruct.PLL.PLLQ = 2;

RCC_OscInitStruct.PLL.PLLR = 2;

RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_3;

RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;

RCC_OscInitStruct.PLL.PLLFRACN = 0;

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_CLOCKTYPE_PCLK2

|RCC_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;

RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;

RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;

RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;

RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;

RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;

RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;

RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;



if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)

{

Error_Handler();

}

}



/**

* @brief USART1 Initialization Function

* @PAram None

* @retval None

*/

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.Init.ClockPrescaler = UART_PRESCALER_DIV1;

huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;

if (HAL_UART_Init(&huart1) != HAL_OK)

{

Error_Handler();

}

if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)

{

Error_Handler();

}

if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)

{

Error_Handler();

}

if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)

{

Error_Handler();

}

/* USER CODE BEGIN USART1_Init 2 */



/* USER CODE END USART1_Init 2 */



}



/**

* @brief GPIO Initialization Function

* @PAram None

* @retval None

*/

static void MX_GPIO_Init(void)

{

/* USER CODE BEGIN MX_GPIO_Init_1 */



/* USER CODE END MX_GPIO_Init_1 */



/* GPIO Ports Clock Enable */

__HAL_RCC_GPIOG_CLK_ENABLE();

__HAL_RCC_GPIOC_CLK_ENABLE();

__HAL_RCC_GPIOA_CLK_ENABLE();

__HAL_RCC_GPIOB_CLK_ENABLE();



/* USER CODE BEGIN MX_GPIO_Init_2 */



/* USER CODE END MX_GPIO_Init_2 */

}



/* USER CODE BEGIN 4 */



/* USER CODE END 4 */



/* MPU Configuration */



void MPU_Config(void)

{

MPU_Region_InitTypeDef MPU_InitStruct = {0};



/* Disables the MPU */

HAL_MPU_Disable();



/** Initializes and configures the Region and the memory to be protected

*/

MPU_InitStruct.Enable = MPU_REGION_ENABLE;

MPU_InitStruct.Number = MPU_REGION_NUMBER0;

MPU_InitStruct.BaseAddress = 0x24000000;

MPU_InitStruct.Size = MPU_REGION_SIZE_512KB;

MPU_InitStruct.SubRegionDisable = 0x00;

MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;

MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;

MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;

MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE;

MPU_InitStruct.IsCacheable = MPU_ACCESS_CACHEABLE;

MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;



HAL_MPU_ConfigRegion(&MPU_InitStruct);

/* Enables the MPU */

HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);



}



/**

* @brief This function is executed in case of error occurrence.

* @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 */

__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 */

====================================================================

[Andrew Neil]

You still haven't said what board you're using, or what debugging you've done so far.

[TDK]

Imprecise error tends to be a hardware issue. Insufficient power, wrong clock setting, etc.