STM32F103C8 pins PD0 & PD1 not working as output help me to resolve this issue i am using stm32 cube mx ide

[Rkolh.1]

I configured all pins of stm32f103c8 as output. All pins are toggling and only PD0 and PD1 aren't toggling .. I am using internal crystal of stm32f103c8 then obviously the PD0 and PD1 pins are free for configure as output or input.

[TDK · Accepted solution]

PD0/PD1 are used by the external oscillator by default. To use them as GPIO pins, see "Using OSC_IN/OSC_OUT pins as GPIO ports PD0/PD1" in the reference manual.

[Rkolh.1]

Thank you . Then stm32cube Mx generates faulty code to make remap pins On PD0 and PD1 and configure as ​IO? Please give me direct solution for this because I am new on stm32

[Rkolh.1]

Thank you .give me direct solution for this​

[Rkolh.1]

IN REFERENCE MANUAL

9.3.2 Using OSC_IN/OSC_OUT pins as GPIO ports PD0/PD1

The HSE oscillator pins OSC_IN/OSC_OUT can be used as general-purpose I/O PD0/PD1 

by programming the PD01_REMAP bit in the AF remap and debug I/O configuration register 

(AFIO_MAPR).

This remap is available only on 36-, 48- and 64-pin packages (PD0 and PD1 are available 

on 100-pin and 144-pin packages, no need for remapping).

Note: The external interrupt/event function is not remapped. PD0 and PD1 cannot be used for 

external interrupt/event generation on 36-, 48- and 64-pin packages.

[waclawek.jan]

OK so as you have the 48-pin package, you need to set AFIO_MAPR.PD01_REMAP to be able to use the oscillator pins as PD0/PD1. It appers that in Cube/HAL, you could use AFIO_REMAP_ENABLE(AFIO_MAPR_PD01_REMAP) . I don't use Cube.

Note, that to be able to do that, the AFIO clock in RCC has to be enabled first, by setting RCC_APB2ENR.AFIOEN.

JW

[TDK]

/**
  * @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_GPIOD_CLK_ENABLE();
 
  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOD, GPIO_PIN_0|GPIO_PIN_1, GPIO_PIN_RESET);
 
  /*Configure GPIO pins : PD0 PD1 */
  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
 
  /*Configure peripheral I/O remapping */
  __HAL_AFIO_REMAP_PD01_ENABLE();
 
}

> Then stm32cube Mx generates faulty code to make remap pins

Seems right to me. (Note that  __HAL_RCC_AFIO_CLK_ENABLE() is called within HAL_MspInit.)

[Rkolh.1]

Thank you TDK but not getting Output. Please cheak code

/* MAIN CODE*/

 HAL_GPIO_TogglePin(GPIOD,GPIO_PIN_0);

 HAL_GPIO_TogglePin(GPIOD,GPIO_PIN_1);

   HAL_GPIO_TogglePin(GPIOC,GPIO_PIN_13);

   HAL_Delay(10);

/* GPIO INIT FUNCTION*/

static void MX_GPIO_Init(void)

{

 GPIO_InitTypeDef GPIO_InitStruct = {0};

 /* GPIO Ports Clock Enable */

 __HAL_RCC_GPIOC_CLK_ENABLE();

 __HAL_RCC_GPIOD_CLK_ENABLE();

 __HAL_RCC_GPIOA_CLK_ENABLE();

 /*Configure GPIO pin Output Level */

 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15, GPIO_PIN_RESET);

 /*Configure GPIO pin Output Level */

 HAL_GPIO_WritePin(GPIOD, GPIO_PIN_0|GPIO_PIN_1, GPIO_PIN_RESET);

 /*Configure GPIO pins : PC13 PC14 PC15 */

 GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;

 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 : PD0 PD1 */

 GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;

 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;

 GPIO_InitStruct.Pull = GPIO_NOPULL;

 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

 HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);

 /*Configure peripheral I/O remapping */

 __HAL_AFIO_REMAP_PD01_ENABLE();

}

/* SYSTEM INT*/

HAL_StatusTypeDef HAL_Init(void)

{

 /* Configure Flash prefetch */

#if (PREFETCH_ENABLE != 0)

#if defined(STM32F101x6) || defined(STM32F101xB) || defined(STM32F101xE) || defined(STM32F101xG) || \

  defined(STM32F102x6) || defined(STM32F102xB) || \

  defined(STM32F103x6) || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG) || \

  defined(STM32F105xC) || defined(STM32F107xC)

 /* Prefetch buffer is not available on value line devices */

 __HAL_FLASH_PREFETCH_BUFFER_ENABLE();

#endif

#endif /* PREFETCH_ENABLE */

 /* Set Interrupt Group Priority */

 HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);

 /* Use systick as time base source and configure 1ms tick (default clock after Reset is HSI) */

 HAL_InitTick(TICK_INT_PRIORITY);

 /* Init the low level hardware */

 HAL_MspInit();

 /* Return function status */

 return HAL_OK;

}

/* MSP INIT */

__weak void HAL_MspInit(void)

{

 /* NOTE : This function should not be modified, when the callback is needed,

      the HAL_MspInit could be implemented in the user file

  */

}

/*MY EDITED MSP INT*/

__weak void HAL_MspInit(void)

{

 /* NOTE : This function should not be modified, when the callback is needed,

      the HAL_MspInit could be implemented in the user file

  */

 __HAL_RCC_AFIO_CLK_ENABLE();

}

NOT GETTING OUTPUT:confounded_face:

[TDK]

Per the comments in the code, you shouldn't modify the HAL_MspInit function. It should be implemented in user code. CubeMX generates it for you within "stm32f1xx_hal_msp.c". Here's what it generated for me:

/**
  * Initializes the Global MSP.
  */
void HAL_MspInit(void)
{
  /* USER CODE BEGIN MspInit 0 */
 
  /* USER CODE END MspInit 0 */
 
  __HAL_RCC_AFIO_CLK_ENABLE();
  __HAL_RCC_PWR_CLK_ENABLE();
 
  /* System interrupt init*/
 
  /** DISABLE: JTAG-DP Disabled and SW-DP Disabled
  */
  __HAL_AFIO_REMAP_SWJ_DISABLE();
 
  /* USER CODE BEGIN MspInit 1 */
 
  /* USER CODE END MspInit 1 */
}

But that's probably in your code too if you've generated it from CubeMX. If it is, not sure what the issue is. I don't have an F103 board.

[Rkolh.1]

Thank you .. you tried your best to explain it to me. but my outcomes are zero.as your suggestion i found out

__HAL_AFIO_REMAP_PD01_ENABLE();

 __HAL_RCC_AFIO_CLK_ENABLE();