nRF52840 Firmware update from stm32f407 (non-OS)

RE: nRF52840 Firmware update from stm32f407 (non-OS)

bjorn-spockeli — Wed, 15 Jan 2020 09:04:52 GMT

Hi Alex,

[quote user="alex kim"]

1. I added DEBUG inside the preprocessor symbol in the keil environment.

Undefined symbol app_error_save_and_stop (referred from app_error_weak.o) was printed when I build in keil

[/quote]

The Bootloader projects does not include the app_error.c file where app_error_save_and_stop () is defined to reduce the overal memory usage of the example. You can add it to the project from nRF5_SDK_15.3.0_59ac345\components\libraries\util

[quote user="alex kim"]

2. Which of the following messages would appear in uart of the secure_bootloader?

<error> app: Received an error: 0x00000004!

[/quote]

Error Code 0x04 is NRF_ERROR_NO_MEM meaning that there is No Memory for operation. Which function in the bootloader is returning this error code?

Best regards

Bjørn

RE: nRF52840 Firmware update from stm32f407 (non-OS)

alex kim — Tue, 14 Jan 2020 11:41:29 GMT

Hi Bjorn

I have two questions

1. I added DEBUG inside the preprocessor symbol in the keil environment.

Undefined symbol app_error_save_and_stop (referred from app_error_weak.o) was printed when I build in keil

2. Which of the following messages would appear in uart of the secure_bootloader?

<error> app: Received an error: 0x00000004!

Best regards,

Alex

RE: nRF52840 Firmware update from stm32f407 (non-OS)

bjorn-spockeli — Fri, 11 Oct 2019 06:12:45 GMT

Happy to help 🙂

RE: nRF52840 Firmware update from stm32f407 (non-OS)

bjorn-spockeli — Fri, 11 Oct 2019 06:12:45 GMT

Happy to help 🙂

RE: nRF52840 Firmware update from stm32f407 (non-OS)

alex kim — Fri, 11 Oct 2019 02:21:16 GMT

Thank you for your quick reply.

Alex

RE: nRF52840 Firmware update from stm32f407 (non-OS)

bjorn-spockeli — Mon, 07 Oct 2019 11:59:11 GMT

HI Alex,

I recommend that you take a look at this C port of nrfutil: https://github.com/jimmywong2003/nrf-slim-serial-uart-dfu-host-c-code

I think you should be able to run this on the STM side and then you only need to flash the Secure DFU Bootloader over Serial Link (UART/USB) example to the nRF52840 to perform firmware updates of the nRF52840 from the STM.

Best regards

Bjørn