Need a secure bootloader for nRF52811 that supports S113

RE: Need a secure bootloader for nRF52811 that supports S113

bjorn-spockeli — Thu, 02 Jan 2020 12:26:33 GMT

Hi Drew,

Great. Glad to hear that you were able to solve the issue.

Best regards

Bjørn

RE: Need a secure bootloader for nRF52811 that supports S113

amarchand — Fri, 20 Dec 2019 14:21:45 GMT

We were able to resolve out issue with the bootloader and MBR from our distributor. This case can be closed.

Thanks,

Drew

RE: Need a secure bootloader for nRF52811 that supports S113

bjorn-spockeli — Wed, 18 Dec 2019 10:10:57 GMT

Hi Andrew,

I am not seeing any issues when compiling the pca10056e_uart ( i.e. nRF5_SDK_16.0.0_684aa2c\examples\dfu\secure_bootloader\pca10056e_uart example) in a clean "install" of nRF5_SDK_16.0.0_684aa2c. I have attached the compiled hex file.

devzone.nordicsemi.com/.../secure_5F00_bootloader_5F00_uart_5F00_mbr_5F00_pca10056e.hex

Have you modified the example in any way, e.g. added any code or modified the project options like the linker settings or similar?

Best regards

Bjørn

RE: Need a secure bootloader for nRF52811 that supports S113

amarchand — Tue, 17 Dec 2019 16:31:45 GMT

We are building in Release mode.

RE: Need a secure bootloader for nRF52811 that supports S113

Pratyush Dave — Tue, 17 Dec 2019 16:28:20 GMT

Are you building in "Debug" mode or "Release" mode? It will be larger in size in Debug mode.

RE: Need a secure bootloader for nRF52811 that supports S113

amarchand — Tue, 17 Dec 2019 16:22:52 GMT

The project does not link. After building the micro-ecc library and building the project, we are getting the following error:

Linking secure_bootloader_uart_mbr_pca10056e.elf
    Output/Release/Exe/secure_bootloader_uart_mbr_pca10056e.elf section `.got' will not fit in region `UNPLACED_SECTIONS'
    region `UNPLACED_SECTIONS' overflowed by 16 bytes

Do we need to fix the flash placement?

Regards,

Drew

RE: Need a secure bootloader for nRF52811 that supports S113

Pratyush Dave — Tue, 17 Dec 2019 15:22:59 GMT

In SDK 16.0.0, examples for the nRF52811 are in folders starting with “pca10056e”, and not the “pca10040e”. So for secure UART bootloader, the one in this path should be used,

“<Your path to nRF5_SDK_v16.0.0>\examples\dfu\secure_bootloader\pca10056e_uart”. This will work with both S112 and S113.