Flash @ STM32F429VIT6

[gui2]

Posted on November 02, 2015 at 00:43

Hi,

I'm using FLASH to store some data. Everything works great when I write in an empty address. When I try to write in a already used memory position, the stored value becomes to zero!

I tried erase the sector before call the write function but the uC crashes. 

Here it follows:

FLASH_Unlock();

FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR|FLASH_FLAG_PGSERR); 

FLASH_EraseSector(ADDR_FLASH_SECTOR_4,VoltageRange_3);

FLASH_ProgramWord(ADDR_FLASH_SECTOR_4, data);

FLASH_Lock();

Anyone can help me? I'm using FreeRTOS.

Thanks in advance,

--

Guilherme 

[gui2]

Posted on November 02, 2015 at 20:36

SOLVED!!!!

Thank you very much everyone specially clive1!

You was right! I was making confusion with the index and with the initial address of sectors! Everything goes right now!

Thank you!

--

Guilherme