Flash memory erase

[DivyaJayan]

I am using STM32L476RGT6. I am trying to read and write operation in the embedded flash memory. I am unable to erase the stored data in the embedded flash memory. 

I am following method to erase :

FLASH_EraseInitTypeDef EraseInitStruct;

HAL_FLASH_Unlock();

EraseInitStruct.TypeErase= FLASH_TYPEERASE_PAGES;

EraseInitStruct. Page = 0x0807F800;

EraseInitStruct. NbPages=1;

EraseInitStruct. Banks= 1;//

uint32_t  PAGE Error;

if (HAL_FLASHEx_Erase(&EraseInitStruct, &PAGEError) != HAL_OK) {

}

HAL_FLASH_Lock();

[Elatewendy · Accepted solution]

hello,

EraseInitStruct. Page = 0x0807F800;

the page is the number of page,not the address.

The number of page numbers can be obtained by calculation.

For example:

unsigned int STMFLASH_GetFlashPage(unsigned int addr)
{
    uint32_t page = 0;

    if (addr < (FLASH_BASE + FLASH_BANK_SIZE))
    {
        /* Bank 1 */
        page = (addr - FLASH_BASE) / FLASH_PAGE_SIZE;
    }
    else
    {
        /* Bank 2 */
        page = (addr - (FLASH_BASE + FLASH_BANK_SIZE)) / FLASH_PAGE_SIZE;
    }

    return page;
}