SPI_Transmit get stuck at HardFault_Handler @ stm32f4xx_it.c

[SKAŞ.1]

I'm trying to create my own library,

When I use HAL_SPI_Transmit(), it gets stuck at

void HardFault_Handler(void) @stm32f4xx_it.c

• I use SPI at my own library/function, not in the main function.

I also check SPI_Transmit before calling my own function, it is working there. But, in my function (contained different than main) does not work. Any Idea?

Thanks already!

[TDK]

void ILI9341_SendCommand(SPI_HandleTypeDef *hspi, uint8_t data)
{
	HAL_GPIO_WritePin(WRX_Port, WRX_Pin, GPIO_PIN_RESET);	// SET WRX HIGH
	HAL_GPIO_WritePin(CS_Port, CS_Pin, GPIO_PIN_RESET);	// SET CS LOW
	while( HAL_SPI_Transmit(&hspi, data, 1, 100) != HAL_OK);

Pass the address to the data, not the value of the data itself.

while( HAL_SPI_Transmit(&hspi, &data, 1, 100) != HAL_OK);

[SKAŞ.1]

For now, I turn my problem into a simpler situation. in "main.c" file.

This is my pre-define for my function

the variable I create inside the main function

the place I call the function

and the function itself (in the main file)

 

I knew structure and code seems different than my original post. But I thought maybe if I create a simpler environment, I may fix it faster. Still, it turns HardFault at the system.

More specifically, when I open debug, press resume this page occurs.

 

this is the full code. I may not notice important detail, I am waiting for your kind help. :beaming_face_with_smiling_eyes:

/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file : main.c
 * @brief : Main program body
 ******************************************************************************
 * @attention
 *
 * <h2><center>&copy; Copyright (c) 2021 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
 *
 ******************************************************************************
 */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
 
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stm32f4xx.h"
//#include "function.h"
/* USER CODE END Includes */
 
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
 
/* USER CODE END PTD */
 
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
 
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
 
/* USER CODE END PM */
 
/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi1;
 
/* USER CODE BEGIN PV */
 
/* USER CODE END PV */
 
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI1_Init(void);
/* USER CODE BEGIN PFP */
void SendCommand(SPI_HandleTypeDef *hspi, uint8_t *bufferTx);
/* 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 */
	uint8_t SPI_BUF = 0x75;
 /* USER CODE END 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 SysInit */
 
 /* USER CODE END SysInit */
 
 /* Initialize all configured peripherals */
 MX_GPIO_Init();
 MX_SPI1_Init();
 /* USER CODE BEGIN 2 */
 HAL_GPIO_WritePin(GPIOG, GPIO_PIN_14, GPIO_PIN_SET);
 /* USER CODE END 2 */
 
 /* Infinite loop */
 /* USER CODE BEGIN WHILE */
 while (1)
 {
 /* USER CODE END WHILE */
 /* USER CODE BEGIN 3 */
	 SendCommand(&hspi1, &SPI_BUF);
 
 
	 HAL_GPIO_TogglePin(GPIOG, GPIO_PIN_13);
	 HAL_Delay(500);
 }
 /* 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 the main internal regulator output voltage
 */
 __HAL_RCC_PWR_CLK_ENABLE();
 __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
 /** 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_ON;
 RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
 RCC_OscInitStruct.PLL.PLLM = 8;
 RCC_OscInitStruct.PLL.PLLN = 180;
 RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
 RCC_OscInitStruct.PLL.PLLQ = 4;
 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
 {
 Error_Handler();
 }
 /** Activate the Over-Drive mode
 */
 if (HAL_PWREx_EnableOverDrive() != 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_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
 RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
 RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
 
 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
 {
 Error_Handler();
 }
}
 
/**
 * @brief SPI1 Initialization Function
 * @param None
 * @retval None
 */
static void MX_SPI1_Init(void)
{
 
 /* USER CODE BEGIN SPI1_Init 0 */
 
 /* USER CODE END SPI1_Init 0 */
 
 /* USER CODE BEGIN SPI1_Init 1 */
 
 /* USER CODE END SPI1_Init 1 */
 /* SPI1 parameter configuration*/
 hspi1.Instance = SPI1;
 hspi1.Init.Mode = SPI_MODE_MASTER;
 hspi1.Init.Direction = SPI_DIRECTION_2LINES;
 hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
 hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
 hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
 hspi1.Init.NSS = SPI_NSS_SOFT;
 hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_32;
 hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
 hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
 hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
 hspi1.Init.CRCPolynomial = 10;
 if (HAL_SPI_Init(&hspi1) != HAL_OK)
 {
 Error_Handler();
 }
 /* USER CODE BEGIN SPI1_Init 2 */
 
 /* USER CODE END SPI1_Init 2 */
 
}
 
/**
 * @brief GPIO Initialization Function
 * @param None
 * @retval None
 */
static void MX_GPIO_Init(void)
{
 GPIO_InitTypeDef GPIO_InitStruct = {0};
 
 /* GPIO Ports Clock Enable */
 __HAL_RCC_GPIOH_CLK_ENABLE();
 __HAL_RCC_GPIOA_CLK_ENABLE();
 __HAL_RCC_GPIOC_CLK_ENABLE();
 __HAL_RCC_GPIOG_CLK_ENABLE();
 
 /*Configure GPIO pin Output Level */
 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_RESET);
 
 /*Configure GPIO pin Output Level */
 HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13|GPIO_PIN_14, GPIO_PIN_RESET);
 
 /*Configure GPIO pin : PA0 */
 GPIO_InitStruct.Pin = GPIO_PIN_0;
 GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
 GPIO_InitStruct.Pull = GPIO_NOPULL;
 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
 /*Configure GPIO pin : PC4 */
 GPIO_InitStruct.Pin = GPIO_PIN_4;
 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
 GPIO_InitStruct.Pull = GPIO_NOPULL;
 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
 /*Configure GPIO pins : PG13 PG14 */
 GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14;
 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
 GPIO_InitStruct.Pull = GPIO_NOPULL;
 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
 HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
 
}
 
/* USER CODE BEGIN 4 */
 
void SendCommand(SPI_HandleTypeDef *hspi, uint8_t *bufferTx)
{
	//uint8_t Buffer2Send = bufferTx;
	HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_RESET);
 
	while(HAL_SPI_Transmit(&hspi, &bufferTx, 1, 100) != HAL_OK);
 
	HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_SET);
}
 
/* USER CODE END 4 */
 
/**
 * @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 */
 
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

[SKAŞ.1]

Does anyone have an idea?

maybe I should declare my function as static void instead of void or anything else?

:folded_hands:

[TDK]

You are hopeless. Instead of making the recommended change, you go and change things entirely and introduce new errors.

I don't understand how you are compiling these codes as the compiler won't convert uint8_t to uint8_t * without a warning or error. Those warnings should give you a close as to what's wrong.

Similarly, the compiler won't convert uint8_t ** to uint8_t * without a warning or error.

error: cannot convert 'uint8_t** {aka unsigned char**}' to 'uint8_t* {aka unsigned char*}' for argument '2' to 'HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef*, uint8_t*, uint16_t, uint32_t)'

How are you not seeing these errors?

[SKAŞ.1]

with my all respect sir,

I try to learn things, commenting on someone as hopeless is kinda rude? But I will respect your aspect.

to answer your question how did I not get any error -> Well, I use STM32CubeIDE maybe that's an issue related to them?

Thanks for your response anyway, I have some medical situation right at moment, I have to stop my working process for a couple of days. I will check the issue and try to solve it if I could.

Also, I want to mention that, while I waiting for a response from any community member, I try things. Is it a bad thing? I didn't change everything entirely, my initial project still waiting as it is posted here. I just simplified the problem as much as I could, to see if anything may break while I arrange it in the first place.

Thanks again, kind regards.

[TDK]

Maybe it was a little harsh. I apologize.
It’s hard to solve a problem when the goalposts keep moving.
CubeIDE uses the GCC compiler, which absolutely will throw an error with that code. I can’t explain why you’re not seeing it in the console.