Code gets stuck at configASSERT(0); after running for few minutes

[vishnu_illikkal]

I am using the STM32H735G-DK board

When i tried the Debugging at this file the code gets stuck.

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * File Name          : STM32TouchController.cpp
  ******************************************************************************
  * This file is generated by TouchGFX Generator 4.19.1.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2022 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 */

/* USER CODE BEGIN STM32TouchController */

#include <STM32TouchController.hpp>
#include <stm32h735g_discovery_ts.h>
#include <TouchGFXHAL.hpp>
#include <cmsis_os.h>

void STM32TouchController::init()
{
    TS_Init_t hTS;

    hTS.Orientation = TS_SWAP_XY;
    hTS.Accuracy = 0;
    hTS.Width = touchgfx::HAL::FRAME_BUFFER_WIDTH;
    hTS.Height = touchgfx::HAL::FRAME_BUFFER_HEIGHT;
    BSP_TS_Init(0, &hTS);
}

bool STM32TouchController::sampleTouch(int32_t& x, int32_t& y)
{
    TS_State_t TS_State = { 0 };

    /* This should never fail !! */
    if (BSP_TS_GetState(0, &TS_State) != BSP_ERROR_NONE)
    {
        configASSERT(0);
    }

    if (TS_State.TouchDetected)
    {
        x = TS_State.TouchX;
        y = TS_State.TouchY;

        return true;
    }

    return false;
}

/* USER CODE END STM32TouchController */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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configASSERT(0);  is the line at which the code is 

@STTwo-32 

[Andrew Neil]

---

@vishnu_illikkal wrote:

configASSERT(0);  is the line at which the code is 

---

Here:

    /* This should never fail !! */
    if (BSP_TS_GetState(0, &TS_State) != BSP_ERROR_NONE)
    {
        configASSERT(0);
    }

 So BSP_TS_GetState() is returning an error.

Take a look at what error it's returning.

Can you step into  BSP_TS_GetState() to see where it detects the error?

EDIT:

---

@vishnu_illikkal wrote:

after running for few minutes

---

So maybe try instrumenting BSP_TS_GetState() (eg, UART output) and see what changes when it stops working ...

[vishnu_illikkal]

ok will check.

[vishnu_illikkal]

does anyone know how not to optimize out the values?
this is on by default.

[vishnu_illikkal]

i used snprintf and got to see the error

bool STM32TouchController::sampleTouch(int32_t& x, int32_t& y)
{
    TS_State_t TS_State = { 0 };

    /* This should never fail !! */
    int err = BSP_TS_GetState(0, &TS_State);
    printf("%d",err);
    char buffer[50];  // Adjust the buffer size as needed

	snprintf(buffer, sizeof(buffer), "%d", err);
	printf("%s\n", buffer);

//    event_log((char*)err, LOG_DEBUG);
    if (BSP_TS_GetState(0, &TS_State) != BSP_ERROR_NONE)
    {
        configASSERT(0);
    }

    if (TS_State.TouchDetected)
    {
        x = TS_State.TouchX;
        y = TS_State.TouchY;

        return true;
    }

    return false;
}

it was -5 which is BSP_ERROR_COMPONENT_FAILURE

/**
  * @brief  Returns positions of a single touch screen.
  *   Instance  TS instance. Could be only 0.
  *   TS_State  Pointer to touch screen current state structure
  * @retval BSP status
  */
int32_t BSP_TS_GetState(uint32_t Instance, TS_State_t *TS_State)
{
  int32_t ret = BSP_ERROR_NONE;
  uint32_t x_oriented, y_oriented;
  uint32_t x_diff, y_diff;

  if(Instance >= TS_INSTANCES_NBR)
  {
    ret = BSP_ERROR_WRONG_PARAM;
  }
  else
  {
    FT5336_State_t state;

    /* Get each touch coordinates */
    if(Ts_Drv->GetState(Ts_CompObj[Instance], &state) < 0)
    {
      ret = BSP_ERROR_COMPONENT_FAILURE;
    }/* Check and update the number of touches active detected */
    else if(state.TouchDetected != 0U)
    {
      x_oriented = state.TouchX;
      y_oriented = state.TouchY;

      if((Ts_Ctx[Instance].Orientation & TS_SWAP_XY) == TS_SWAP_XY)
      {
        x_oriented = state.TouchY;
        y_oriented = state.TouchX;
      }

      if((Ts_Ctx[Instance].Orientation & TS_SWAP_X) == TS_SWAP_X)
      {
        x_oriented = Ts_Ctx[Instance].MaxX - state.TouchX - 1UL;
      }

      if((Ts_Ctx[Instance].Orientation & TS_SWAP_Y) == TS_SWAP_Y)
      {
        y_oriented = Ts_Ctx[Instance].MaxY - state.TouchY;
      }

      /* Apply boundary */
      TS_State->TouchX = (x_oriented * Ts_Ctx[Instance].Width) / Ts_Ctx[Instance].MaxX;
      TS_State->TouchY = (y_oriented * Ts_Ctx[Instance].Height) / Ts_Ctx[Instance].MaxY;
      /* Store Current TS state */
      TS_State->TouchDetected = state.TouchDetected;

      /* Check accuracy */
      x_diff = (TS_State->TouchX > Ts_Ctx[Instance].PreviousX[0])?
        (TS_State->TouchX - Ts_Ctx[Instance].PreviousX[0]):
        (Ts_Ctx[Instance].PreviousX[0] - TS_State->TouchX);

        y_diff = (TS_State->TouchY > Ts_Ctx[Instance].PreviousY[0])?
          (TS_State->TouchY - Ts_Ctx[Instance].PreviousY[0]):
          (Ts_Ctx[Instance].PreviousY[0] - TS_State->TouchY);


          if ((x_diff > Ts_Ctx[Instance].Accuracy) || (y_diff > Ts_Ctx[Instance].Accuracy))
          {
            /* New touch detected */
            Ts_Ctx[Instance].PreviousX[0] = TS_State->TouchX;
            Ts_Ctx[Instance].PreviousY[0] = TS_State->TouchY;
          }
          else
          {
            TS_State->TouchX = Ts_Ctx[Instance].PreviousX[0];
            TS_State->TouchY = Ts_Ctx[Instance].PreviousY[0];
          }
    }
    else
    {
      TS_State->TouchDetected = 0U;
      TS_State->TouchX = Ts_Ctx[Instance].PreviousX[0];
      TS_State->TouchY = Ts_Ctx[Instance].PreviousY[0];
    }
  }

  return ret;
}

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[Andrew Neil]

---

@vishnu_illikkal wrote:

does anyone know how not to optimize out the values?

---

Change optimiser level.

Make sure the value is used - eg, in a printf.

Make the variable 'volatile'

[Andrew Neil]

---

@vishnu_illikkal wrote:

i used snprintf and got to see the error

it was -5 which is BSP_ERROR_COMPONENT_FAILURE

---

So that must be happening here:

    /* Get each touch coordinates */
    if(Ts_Drv->GetState(Ts_CompObj[Instance], &state) < 0)
    {
      ret = BSP_ERROR_COMPONENT_FAILURE;
    }

So, again, instrument  that GetState function to see what it's returning, and why.

[vishnu_illikkal]

    int err = Ts_Drv->GetState(Ts_CompObj[Instance], &state);
    char buffer[50] = {0};
	snprintf(buffer, sizeof(buffer), "%d", err);
	printf("%s\n", buffer);
    if(Ts_Drv->GetState(Ts_CompObj[Instance], &state) < 0)
    {
      ret = BSP_ERROR_COMPONENT_FAILURE;

I found the error as -1 
but i couldn't fine the function 
i could only find the ts.h header file

/**
  ******************************************************************************
  * @file    ts.h
  * @author  MCD Application Team
  * @brief   This file contains all the functions prototypes for the Touch Screen driver.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2018 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
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef TS_H
#define TS_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include <stdint.h> 

/** @addtogroup BSP
  * @{
  */

/** @addtogroup Components
  * @{
  */
    
/** @addtogroup TS
  * @{
  */

/** @defgroup TS_Exported_Types
  * @{
  */

/** @defgroup TS_Driver_structure  Touch Sensor Driver structure
  * @{
  */
typedef struct
{  
  int32_t ( *Init                 ) (void *);  
  int32_t ( *DeInit               ) (void *);
  int32_t ( *GestureConfig        ) (void *, void*);
  int32_t ( *ReadID               ) (void *, uint32_t *);  
  int32_t ( *GetState             ) (void *, void*);
  int32_t ( *GetMultiTouchState   ) (void *, void*);
  int32_t ( *GetGesture           ) (void *, void*);
  int32_t ( *GetCapabilities      ) (void *, void*);  
  int32_t ( *EnableIT             ) (void *);
  int32_t ( *DisableIT            ) (void *);
  int32_t ( *ClearIT              ) (void *);
  int32_t ( *ITStatus             ) (void *);
}TS_Drv_t;

  
/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /* TS_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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[Andrew Neil]

---

@vishnu_illikkal wrote:

but i couldn't fine the function 

---

It's a function pointer - so you'd have to find where that Ts_Drv structure gets initialised to know what actual function it's pointing to.

But there's no need for that: just use the debugger's "Step Into" and that will, as the name suggests step into the function - whatever it is.

[vishnu_illikkal]

i will try.