write to flash fail

[aviel]

Hi,

I try to write and read from flash on stm32wb10cc but when i try to write by HAL_FLASH_Program function i received 3 errors in  FLASH Status register:

1. Programming alignment error

2. size error

3. Programming sequence error

my code is:

on the main:

uint64_t data2[] = {0x44444444,0x55555555};

uint64_t Rx_Data[30] = {0};

Flash_Write_Data((FLASH_END_ADDR - (FLASH_PAGE_SIZE * 150)) - 1 , (uint64_t *)data2, 2);

the Flash_Write_Data function is:

uint32_t Flash_Write_Data (uint32_t StartPageAddress, uint64_t *Data, uint16_t numberofwords)

{

static FLASH_EraseInitTypeDef EraseInitStruct;

uint32_t PAGEError;

int sofar=0;

/* Unlock the Flash to enable the flash control register access *************/

HAL_FLASH_Unlock();

/* Erase the user Flash area*/

uint32_t StartPage = GetPageIndex(StartPageAddress);

/* Fill EraseInit structure*/

EraseInitStruct.TypeErase = FLASH_TYPEERASE_PAGES;

EraseInitStruct.Page = StartPage;

EraseInitStruct.NbPages = 1;

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

{

/*Error occurred while page erase.*/

return HAL_FLASH_GetError ();

}

/* Program the user Flash area word by word*/

while (sofar<numberofwords)

{

if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, StartPageAddress, Data[sofar]) == HAL_OK)

{

StartPageAddress += 2; // use StartPageAddress += 2 for half word and 8 for double word

sofar++;

}

else

{

/* Error occurred while writing data in Flash memory*/

return HAL_FLASH_GetError ();

}

}

/* Lock the Flash to disable the flash control register access (recommended

to protect the FLASH memory against possible unwanted operation) *********/

HAL_FLASH_Lock();

return 0;

}

The GetPageIndex function is:

static uint32_t GetPageIndex(uint32_t Address)

{

for (int indx=0; indx<160; indx++)

{

uint32_t addressOne = 0x08000000 + (FLASH_PAGE_SIZE *(indx+1));

uint32_t addresstwo = (0x08000000 + FLASH_PAGE_SIZE*indx);

if((Address < (0x08000000 + (FLASH_PAGE_SIZE *(indx+1))) ) && (Address >= (0x08000000 + FLASH_PAGE_SIZE*indx)))

{

return (indx);

}

}

return 0;

}

the erase page its ok but the write fail :(

Can anyone explain to me what the problem is?

[TDK]

> StartPageAddress += 2; // use StartPageAddress += 2 for half word and 8 for double word

You're writing double words, so this should be 8, surely. Would explain the alignment error. Could be other issues as well.