DFU support for nRF52840 from a third party chipset

RE: DFU support for nRF52840 from a third party chipset

Amanda Hsieh — Wed, 08 May 2024 13:30:56 GMT

Hi,

You can also look at this unofficial sample: https://github.com/hellesvik-nordic/samples_for_nrf_connect_sdk/tree/v2.2.0/bootloader_samples/client_smp/smp_client_uart. It uses UART instead of Bluetooth as transport.

-Amanda H.

RE: DFU support for nRF52840 from a third party chipset

siddharth_987 — Wed, 08 May 2024 08:26:52 GMT

Hi,

The given SMP client example seems to be exclusively for Bluetooth based DFU, am I right ?

How will that be utilised for performing Firmware update over UART pins ?

Regards,

Siddharth Singh

RE: DFU support for nRF52840 from a third party chipset

Amanda Hsieh — Tue, 07 May 2024 13:58:33 GMT

Hi,

We are not familiar with how your non-Nordic MCU works. That example has already demonstrated how it works out on Nordic MCU.

-Amanda H.

RE: DFU support for nRF52840 from a third party chipset

siddharth_987 — Tue, 07 May 2024 09:58:13 GMT

Hi,

I have gone through the sample code. Can you be more specific and give more insight on it, like what exactly we need to implement. Also we don't have SMP server related sample for our non - Nordic MCU so how will that work out ?

Regards,

Siddharth Singh

RE: DFU support for nRF52840 from a third party chipset

Amanda Hsieh — Fri, 26 Apr 2024 12:33:49 GMT

[quote user="siddharth_987"]Is it possible to do Firmware Update for nRF52840 through UART pins from a (non Nordic) MCU that has the updated Firmware binary file ?[/quote]

Yes, Check out this sample https://github.com/nrfconnect/sdk-nrf/tree/v2.6.1/samples/bluetooth/central_smp_client as reference.

RE: DFU support for nRF52840 from a third party chipset

siddharth_987 — Fri, 26 Apr 2024 05:41:21 GMT

Hi,

Thank you for your response. There is a small typing error in my query. Let me just rephrase it:

Is it possible to do Firmware Update for nRF52840 through UART pins from a (non Nordic) MCU that has the updated Firmware binary file ?

If so kindly suggest what method or procedure should we follow.

RE: DFU support for nRF52840 from a third party chipset

Amanda Hsieh — Thu, 25 Apr 2024 15:25:06 GMT

Hi,

[quote user=""]Is there any strategy/method or example of how to perform (non Nordic) MCU to (non Nordic) MCU firmware update via UART ? [/quote]

There is no such sample as your requirement. You have to implement SMP Client and SMP Server on the device to communicate via UART.

The following are some relevant samples. Hope they can help.

SMP Server Sample https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/samples/subsys/mgmt/mcumgr/smp_svr/README.html

DFU over UART

Bluetooth: Central SMP Client

Regards,
Amanda H.