Flash Bank2 Pages Write / Erase Problem

[melihcicek]

Posted on April 15, 2011 at 14:36

Flash Bank2 Pages Write / Erase Problem

[Tesla DeLorean]

Posted on May 17, 2011 at 14:31

FLASH_ClearFlag(FLASH_FLAG_BANK2_EOP | FLASH_FLAG_BANK2_PGERR | FLASH_FLAG_BANK2_WRPRTERR);

[Andrew Neil]

Posted on May 17, 2011 at 14:31

Cross post: 

http://www.keil.com/forum/18780/

[melihcicek]

Posted on May 17, 2011 at 14:31

Thank you clive1

It works now I want to ask one more question I can erase pages using FLASH_ErasePage(addr); but it erase 2K but if i want to delete only one byte I mean how can i delete only 0x08002000 address  content !!!

[Andrew Neil]

Posted on May 17, 2011 at 14:31

''It works now''

So be sure to update your thread on the Keil forum! Otherwise you will be wasting people's time over there responding to a question that's already been answered. ''if i want to delete only one byte I mean how can i delete only 0x08002000 address  content !!!'' You can't! It is in the nature of all Flash devices - not just the STM32 - that you can only erase whole pages at a time.

Have you read the ST Application Note about using the Flash to simulate EEPROM...?

[melihcicek]

Posted on May 17, 2011 at 14:31

Hi!

it worked but it is with problem. When i try to erase, it returns FLASH_Timeout but it erase. FLASH_Status1 = FLASH_EraseAllBank2Pages(); Also when i write data it write but function return FLASH_TIMEOUT so it writes more slowly (these problems only for bank2) I didnt understand the problem !!!