STM32F429 - Erase falsh sector doupts

[paramasivan]

Posted on November 20, 2014 at 11:38

Hi,

I am using STM32f429 disco FW_upgrade code as bootloader for my application. I had seen it erase only 11 sectors (1MB) of flash memory. I want to erase upto 23 sectors from my application address, So i have modified the code as below. But it hangs on fault handler.

 /* Erase Flash sectors */

  startsector = FLASH_If_GetSectorNumber(Address);

  

  sectorindex = startsector;

  

  /* Erase FLASH sectors to download image */

  while ((erasestatus == FLASH_COMPLETE) && (sectorindex <= FLASH_Sector_22) && (HCD_IsDeviceConnected(&USB_OTG_Core) == 1))

  {

    erasestatus = FLASH_EraseSector(sectorindex, VoltageRange_3);

    sectorindex += 8;

  }

  

  if ((sectorindex != (FLASH_Sector_22 + 8)) || (erasestatus != FLASH_COMPLETE))

  {

    return 1;

  }

  else

  {

    return 0;

  }

[Tesla DeLorean]

Posted on November 20, 2014 at 15:06

The index is not enumerated linearly.