PCA10100 usb secured bootloader

RE: PCA10100 usb secured bootloader

astella — Tue, 05 May 2020 12:18:45 GMT

Ok, Simonr thank you very much for your kindness and important info.

Best regards

RE: PCA10100 usb secured bootloader

Simonr — Tue, 05 May 2020 10:52:13 GMT

Editing the bootloader starting address is done by changing bootloader_settings_page in nrf_dfu_settings.c

Best regards,

Simon

RE: PCA10100 usb secured bootloader

astella — Tue, 05 May 2020 08:39:02 GMT

Ok, I tested using RAM_START=0x20000008 RAM_SIZE = 0x1FFF8 (0x20000 - 0x08). No prob with that , it works the same. Only doubt to me seems to be BOOTLOADER starting address at this stage

RE: PCA10100 usb secured bootloader

astella — Tue, 05 May 2020 07:21:08 GMT

devzone.nordicsemi.com/.../usb_5F00_secured_5F00_bootloader04052020.7z

Hi Simonr, thank you for your kindness,

I tested this one with the same version of nrfutil (6.1.0) as before and it is working. I have to say that I used

RAM_START=0x2000260c

RAM_SIZE=0x1d9f4

But still I'll do some other test using RAM_START=0x20000008, because MBR is present and not SoftDevice in my case.

FLASH_START=0x78000 and FLASH_SIZE=0x6000 seems to not be possible in my case, because bootloader is greater than 24kB. I mean, should be compulsory to get it started at 0x78000? Because it seems having it started at 0x75000 with 0x9000 size is ok. I still don't know, and have to do test if it is possible to optimize in a way that it fit the 24kB.

I tested with these commands:

nrfutil.exe pkg generate --hw-version 52 --sd-req 0 --application-version 4 --application xxx_mbr.hex --key-file private.key xxx_dfu_pkg.zip

nrfutil.exe dfu usb-serial -pkg xxx_dfu_pkg.zip -p COMx -fc 1 -b 115200

(being xxx_mbr.hex:

mergehex --merge mbr_nrf52_2.4.1_mbr.hex xxx.hex --output xxx_mbr.hex)

RE: PCA10100 usb secured bootloader

Simonr — Mon, 04 May 2020 12:19:18 GMT

Have you checked out this short "guide" on how to port a bootloader project to work on the pca10100? Please check it out and make sure you've done every step described here.

Best regards,

Simon

RE: PCA10100 usb secured bootloader

astella — Fri, 01 May 2020 18:24:46 GMT

When using:

linker_section_placement_macros="FLASH_PH_START=0x0;FLASH_PH_SIZE=0x80000;RAM_PH_START=0x20000000;RAM_PH_SIZE=0x20000;FLASH_START=0x78000;FLASH_SIZE=0x6000;RAM_START=0x20000008;RAM_SIZE=0x1fff8"
linker_section_placements_segments="FLASH RX 0x0 0x100000;RAM RWX 0x20000000 0x20000;uicr_bootloader_start_address RX 0x10001014 0x4;bootloader_settings_page RX 0x0007F000 0x1000;uicr_mbr_params_page RX 0x10001018 0x4;mbr_params_page RX 0x0007E000 0x1000"

I get this:

that is way I used in the uploaded project (bootloader3.7z) this configuration:

linker_section_placement_macros="FLASH_PH_START=0x0;FLASH_PH_SIZE=0x80000;RAM_PH_START=0x20000000;RAM_PH_SIZE=0x20000;FLASH_START=0x74000;FLASH_SIZE=0xA000;RAM_START=0x20000008;RAM_SIZE=0x1fff8"
linker_section_placements_segments="FLASH RX 0x0 0x100000;RAM RWX 0x20000000 0x20000;uicr_bootloader_start_address RX 0x10001014 0x4;bootloader_settings_page RX 0x0007F000 0x1000;uicr_mbr_params_page RX 0x10001018 0x4;mbr_params_page RX 0x0007E000 0x1000"

I saw in

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v16.0.0%2Flib_bootloader.html&cp=5_1_3_5_0_7&anchor=lib_bootloader_memory

that boot start address should be 0x78000 to 0x7E000 (24kB). But should be the firmware like the one that I have compiled, it seems that there is not enough room, this way.

Best regards