When data is deleted in Flash, this directly affects my GPIO pins.

[FatihTaşt.]

I am working with STM32G030K6T6 MCU. In some cases I write and erase to flash memory. While writing there is no problem, while erasing some of my GPIOs go from HIGH to LOW momentarily. I see LED blinking momentarily. Erase function works fine but my general purpose peripheral is affected. My write and erase functions are almost the same as STM32Cube->Repository example. No change is observed in MCU power supply. Can you help me? Thanks.

[Andrew Neil]

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@FatihTaşt. wrote:

My write and erase functions are almost the same as STM32Cube->Repository example. 

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"almost" ?  :thinking_face:

So what, exactly, is different?

[TDK]

Probably going to need more detail here. Which pins are affected and at which point exactly within the code.

[FatihTaşt.]

This happens when I call the HAL_FLASHEx_Erase() function and I get the message "Target not responding, retrying......" from St-Link for a short while. The LED I control on port B resets briefly.Also the ST-link SWD pins are probably affected by this situation.

FLASH_EraseInitTypeDef erase_init;
uint32_t page_error = 0;

/* Set page erase initialization structure */
erase_init.TypeErase = FLASH_TYPEERASE_PAGES;
erase_init.PageAddress = page_address;
erase_init.NbPages = page_count;

HAL_FLASH_Unlock();
/* Flash erase initialization */
if (HAL_FLASHEx_Erase(&erase_init, &page_error) != HAL_OK)
{
/* Error condition handling */
// Error_Handler();
}

HAL_FLASH_Lock();

 The error received is indicated;

[Andrew Neil]

Please see the posting tips for how to properly post source code:

https://community.st.com/t5/community-guidelines/how-to-write-your-question-to-maximize-your-chances-to-find-a/ta-p/575228