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HAL_Delay is not working properly for stm32 blue pill

Monssef
Associate II

i'm trying to run a simple blinking led program on my stm32f103c8t6 (after i run it several times before successfully), and it doesn't work, when i fix the delay in 1000 ms the led is always on, when i decrement it to 100, 200, 300 it's working properly, but whenever i go above 400 ms it's not working:

Monssef_0-1729150589677.pngMonssef_1-1729150612727.png

 

1 ACCEPTED SOLUTION

Accepted Solutions
SofLit
ST Employee

Hello @Monssef and welcome to the community,

"X" Pill board flavors (Blue/Black .. other colors) are not the product of ST. They don't contain genuine STM32 chips for years but just fake ones.

I suggest you to purchase any of official ST boards such as NUCLEO-F103RB containing genuine STM32 MCUs.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

View solution in original post

8 REPLIES 8
SofLit
ST Employee

Hello @Monssef and welcome to the community,

"X" Pill board flavors (Blue/Black .. other colors) are not the product of ST. They don't contain genuine STM32 chips for years but just fake ones.

I suggest you to purchase any of official ST boards such as NUCLEO-F103RB containing genuine STM32 MCUs.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

okeyy, but i think all the mcu chips are manufactured by ST because i got already one in a custom pcb and i will rerun the same program in it (even i will struggle to access the pins because i have only the interfaces needed in my project)

thank you !

 

Can you share the project code? I have webact bluepill stm32f103c8t6. 

If you feel a post has answered your question, please click "Accept as Solution".

@Monssef wrote:

 i think all the mcu chips are manufactured by ST


No, they're not - by definition, fake & clone STM32 chips are not manufactured by ST !

For a couple of examples of the troubles fake parts can cause, see:

https://community.st.com/t5/stm32-mcus-products/configuring-uart-on-stm32f103c8t6-bluepill-kills-connection-to/m-p/668641/highlight/true#M242690

 

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* 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 ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(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)
{
	__HAL_RCC_GPIOA_CLK_ENABLE(); // Enable clock for GPIOA

	GPIO_InitTypeDef GPIO_InitStruct = {0};
	GPIO_InitStruct.Pin = GPIO_PIN_1;
	GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;  // Ensure it's set as output push-pull
	GPIO_InitStruct.Pull = GPIO_NOPULL;          // No pull-up or pull-down resistors
	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; // Set speed to low (or medium/high if needed)
	HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);      // Initialize GPIO
	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_RESET); // Ensure the pin starts LOW


  /* USER CODE BEGIN 1 */

  /* 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();
  if (HAL_SYSTICK_Config(SystemCoreClock / 1000) != 0)
  {
      Error_Handler(); // Handle error
  }

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET);
	  HAL_Delay(1000);
	  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_RESET);
	  HAL_Delay(1000);
    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** 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_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_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

/* 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 */

HAL_Delay() depends on HAL_GetTick()... So not sure how the hardware is causing the issue if it works up to 400ms, so I am curious

You code works well on my board.

can you try the code below?

uint32_t prevTime = 0;

if(HAL_GetTick() - prevTime >= 1000)

{

prevTime = HAL_GetTick();

HAL_GPIO_Toggle();

 

}

If you feel a post has answered your question, please click "Accept as Solution".

Hi Andrew Neil,

The program in question is HAL_Delay() which is just waiting in a loop to check if the HAL_GetTick() increments till the delay. So if it works for 400ms why does it not work for higher values? Is it  a software bug or can it be caused by HW bug?

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still getting exactly the same problem as before !