DFU on UART for pca10056

RE: DFU on UART for pca10056

QuentinD — Thu, 30 Apr 2020 14:12:25 GMT

I don't know why I wrote 0xFC000 for the start address...

If I write 0xE0000 for the "start_ot_flash_data" address, it's works.

RE: DFU on UART for pca10056

QuentinD — Tue, 28 Apr 2020 12:57:05 GMT

I noticed that in the flash_placement.xml file I have:

  <MemorySegment name="ot_flash_data" start="0xfc000" size="0x4000">
    <ProgramSection alignment="4" keep="Yes" load="Yes" name=".ot_flash_data" address_symbol="__start_ot_flash_data" end_symbol="__stop_ot_flash_data" start = "0xfc000" size="0x4000" />
  </MemorySegment>

This "start_ot_flash_data" address is 0xFC000.
But the range address of bootloader is 0xE4000 - 0xFE000 : is not that a problem?

I tested by changing the "start_ot_flash_data" address to 0xF4000 but I still have the same problem…
Do you think I need to change something else?

RE: DFU on UART for pca10056

QuentinD — Fri, 24 Apr 2020 07:39:43 GMT

I think this problem is a linker problem : is it possible ?

Here is my linker configuration (software) :
FLASH_PH_START=0x0
FLASH_PH_SIZE=0x100000
RAM_PH_START=0x20000000
RAM_PH_SIZE=0x40000
FLASH_START=0x27000
FLASH_SIZE=0xd5000
RAM_START=0x20002ae8
RAM_SIZE=0x3d518

Here is my linker configuration (bootloader - PCA10056) :

FLASH_PH_START=0x0
FLASH_PH_SIZE=0x100000
RAM_PH_START=0x20000000
RAM_PH_SIZE=0x40000
FLASH_START=0xe4000
FLASH_SIZE=0x1a000
RAM_START=0x20000008
RAM_SIZE=0x3fff8

Are there things to modify to be compatible with the bootloader?