Bootloader memory settings for 51822xxAB

RE: Bootloader memory settings for 51822xxAB

Jackxl — Mon, 03 Apr 2017 08:14:50 GMT

I have tried send 2kB file too, but with the same error. I have free 24kB flash for application according to nRFgo Studio. I have read that simple use of dfu_single_bank is simple only for version 8.1+. Could be problem low RAM? I have only 8kB free RAM.

RE: Bootloader memory settings for 51822xxAB

Vidar Berg — Mon, 03 Apr 2017 08:02:26 GMT

This error is reported when there is not enough room to store the new image in swap, which is quite limited on the 128K part(memory layout). Note that you can change the the bootloader to do single bank updates of the application by using dfu_single_bank.c instead of dfu_dual_bank.c in your project.

RE: Bootloader memory settings for 51822xxAB

Jackxl — Thu, 30 Mar 2017 10:23:56 GMT

OK.I made some progress. I found out, that softdevice init in bootloader has wrong crystal. So, It transmiting now but REMOTE DATA SIZE EXCEED LIMIT is occurs in nRF Toolbox. My app file has 21k.

RE: Bootloader memory settings for 51822xxAB

Jackxl — Thu, 30 Mar 2017 09:54:29 GMT

I found third file dfu_types.h and there was that issue with bootloader start memory. So I don't have problem with addresses on first look, but bootloader still doens't start.

RE: Bootloader memory settings for 51822xxAB

Jackxl — Thu, 30 Mar 2017 07:21:41 GMT

How You recognize changes in hex file ?

RE: Bootloader memory settings for 51822xxAB

Vidar Berg — Thu, 30 Mar 2017 07:17:46 GMT

The changes you made in dfu_types.h does not appear to have any effect on the build output. Looks like a different version of this header is used in your build.

RE: Bootloader memory settings for 51822xxAB

Jackxl — Thu, 30 Mar 2017 07:12:48 GMT

This bootloader use CMSIS pack, so it could be problem.

RE: Bootloader memory settings for 51822xxAB

Vidar Berg — Thu, 30 Mar 2017 07:07:11 GMT

Thanks, the change you made to the BOOTLOADER_REGION_START definition is not reflected in the build output, which indicates that you are not using the modified dfu_types.h in your build. Recommend to not use CMSIS packs for the reasons outlined here.

RE: Bootloader memory settings for 51822xxAB

Vidar Berg — Thu, 30 Mar 2017 06:19:41 GMT

Please include the bootloader .hex file you have.

RE: Bootloader memory settings for 51822xxAB

Jackxl — Thu, 30 Mar 2017 06:12:40 GMT

I guess that I have the same problem as in devzone.nordicsemi.com/.../ because bootloader start address has no change.

RE: Bootloader memory settings for 51822xxAB

Jackxl — Wed, 29 Mar 2017 13:43:15 GMT

And RAM Size ? If I change only RAM Start I will get 'Range IRAM2 overlaps range IRAM1'.

I set IRAM1 Start to 0x20000000 now. IRAM1 Size 0x3F80 IRAM2 Size 0x80

RE: Bootloader memory settings for 51822xxAB

Vidar Berg — Wed, 29 Mar 2017 13:36:09 GMT

Ok, not sure why that is, but you can do the same from the memory view in Keil if you open a debug session. Also, just noticed that the RAM layout is incorrect in the screenshot you posted. Should be something like this so you don't exceed the 16K boundary:

IRAM1 0x20002000
IRAM2 0x20003f80

RE: Bootloader memory settings for 51822xxAB

Jackxl — Wed, 29 Mar 2017 13:32:58 GMT

Nrfjprog black console window blink without any text and nothing happens from my view.

RE: Bootloader memory settings for 51822xxAB

Vidar Berg — Wed, 29 Mar 2017 13:25:17 GMT

That should work, what do you get if you do a memory read of the UICR->BOOTLAODERADDR register?

nrfjprog --memrd 0x100010014

RE: Bootloader memory settings for 51822xxAB

Jackxl — Wed, 29 Mar 2017 13:23:27 GMT

I did 'eraseall' within nrfjprog.exe --eraseall and in nRFgo Studio by 'Erase all' button and I have flashed it by Keil with External Tool: Command nrfjprog.exe, Arguments:--family NRF51 --program "#H" Flashing with external tool works because I have tried it for nrf51422xxAC.

RE: Bootloader memory settings for 51822xxAB

Vidar Berg — Wed, 29 Mar 2017 13:18:06 GMT

Did you do a complete chip erase before you uploaded the new bootlaoder, and are you using nrfjprog to load the FW (flash alghoritm in keil cant write to the UICR registers)?

RE: Bootloader memory settings for 51822xxAB

Jackxl — Wed, 29 Mar 2017 13:15:20 GMT

THX. I set your settings but It still doesn't work. So, I guess that problem has to be elsewhere. Check my update.

RE: Bootloader memory settings for 51822xxAB

Vidar Berg — Wed, 29 Mar 2017 12:56:59 GMT

The key is to update the BOOTLOADER_REGION_START and BOOTLOADER_SETTINGS_ADDRESS defintions as well as the linker options, which you have done already. However, the addresses needs to be page aligned (0x400), so BOOTLOADER_REGION_START should be 0x1C000 or 0x1C400.., and the BOOTLOADER_SETTINGS_ADDRESS must be set to 0x1FC00. In addition, you need to do a full chip erase before you can update the UICR registers. You can do that by clicking the erase button in nrfgo studio.

RE: Bootloader memory settings for 51822xxAB

Jackxl — Wed, 29 Mar 2017 12:48:58 GMT

I don't understand. That thread is diferent. I know that I have to reduce IROM Start, but what address is still right. I have expected that my new settings is right, but it isn't. How I can erase all from custom board by nrf51422 DK? I erase all by nRFgo Studio but I am not sure, that it works.

My new settings : #define BOOTLOADER_REGION_START 0x1C200//0x0003C000
#define BOOTLOADER_SETTINGS_ADDRESS 0x0001FE00//0x0003FC00

RE: Bootloader memory settings for 51822xxAB

Vidar Berg — Wed, 29 Mar 2017 12:19:44 GMT

Please refer to this thread, it explains how you can change the flash layout for the bootloader.

Update 30/3

Everything below 0x20002000 is reserved for the softdevice

As a side note, if you change the device type from xxAC to xxAB, ensure that you are including the config headers located in \bootloader\config and \bootloader\config\dfu_dual_bank_ble_pca10028.