NRF52840 Secure DFU Over UART

RE: NRF52840 Secure DFU Over UART

Dillibabu — Wed, 26 Jun 2024 02:22:03 GMT

Hi Sigurd,

it was stuck at below line

After remove NRF_LOG_FLUSH() function calling it is switching to application properly.

Thanks

RE: NRF52840 Secure DFU Over UART

Sigurd — Tue, 25 Jun 2024 10:30:04 GMT

Are you able to debug, and see what the code the CPU is executing? Is it stuck in some loop somewhere, etc ?

RE: NRF52840 Secure DFU Over UART

Dillibabu — Mon, 24 Jun 2024 16:08:26 GMT

Hi Sigurd,

After DFU update it is not enter into the "nrf_bootloader_init()" function.

Thanks

RE: NRF52840 Secure DFU Over UART

Sigurd — Mon, 24 Jun 2024 08:52:39 GMT

Hi,

I think some more debugging is needed here. Looks like it goes back to DFU mode after the update.

Could you check if dfu_enter_check() is returning true?

RE: NRF52840 Secure DFU Over UART

Dillibabu — Thu, 20 Jun 2024 15:21:30 GMT

Hi Sigurd,

Thanks for your reply,

as per your reply I have used SES 5.42a but still getting same error, Here attached logfile,

devzone.nordicsemi.com/.../3386.Nrf_5F00_Log.txt

I took LED blink project as application and configured placement macros like below,

FLASH_PH_START=0x0

FLASH_PH_SIZE=0x100000

RAM_PH_START=0x20000000

RAM_PH_SIZE=0x40000

FLASH_START=0x1000

FLASH_SIZE=0x10000

RAM_START=0x20000008

RAM_SIZE=0x40000

After flash application over UART I am getting log message up to "Inside main" it is not entering into the "nrf_bootloader_init" function,

Used below command to create the ZIP file,

nrfutil pkg generate --hw-version 52 --sd-req 0x00 --application blinky_pca10056.hex --application-version 1 --key-file private.pem dfu_uart_package.zip

Used below command to flash the application,

dfu serial -pkg dfu_uart_package.zip -p COM5 -b 115200 -fc 0

above command was taking 20-30 sec to start the flashing

kindly correct me if I made any mistake and help to fix this issue.

Thanks

RE: NRF52840 Secure DFU Over UART

Sigurd — Mon, 17 Jun 2024 12:31:49 GMT

Hi!

Please use SES 5.42a

This is the version used for testing and verification of the SDK v17.1.0

https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/index.html