UART DFU to nRF52840 on nRF91 DK Board using NCS SDK

RE: UART DFU to nRF52840 on nRF91 DK Board using NCS SDK

Elfving — Mon, 31 Oct 2022 12:59:41 GMT

Hello Aleksa,

Please take a look at this case. We've gotten so many requests for this that Simon made it.

Regards

Elfving

RE: UART DFU to nRF52840 on nRF91 DK Board using NCS SDK

Aleksa — Wed, 26 Oct 2022 08:19:42 GMT

Hello Siddarth. Were you able to solve this update? Could you share some info that could help me get started to do the same on NCS SDK v2.1.1?

RE: UART DFU to nRF52840 on nRF91 DK Board using NCS SDK

Elfving — Wed, 17 Nov 2021 14:07:04 GMT

Hey again Siddhart!

[quote user="Siddharth Kachhia"]Is there any sample for SMP server and client over serial?[/quote]

Sadly not, though I think studying the other examples will give you an idea of what to do. The steps you've listed sound promising. You have the right idea.

Download the image to the 91, and either store it there in the meantime or send it directly to the 52. The 52 receives the image, and saves it in a secondary slot, and when the entire image is received it restarts and the bootloader swaps the new and the old image.

Best regards,

Elfving

RE: UART DFU to nRF52840 on nRF91 DK Board using NCS SDK

Siddharth Kachhia — Tue, 16 Nov 2021 04:33:08 GMT

Hi Elfving,

You shared SMP over Bluetooth. Is there any sample for SMP server and client over serial?

My main work is the following:

1) Download the firmware for nrf52 from Internet. The format of this firmware will be bin file. While this firmware belongs to nrf52, it will be stored on nrf91.

2) After storing this bin, the second step is sending the firmware to nrf52 through UART. I have achieved it for basic data like char array.

3) After taking firmware through UART, I want to update it using DFU in nRF52.

Now, I'm at the first step which is storing data on nrf91. Do you have suggestion for my work and issues?

RE: UART DFU to nRF52840 on nRF91 DK Board using NCS SDK

Elfving — Mon, 15 Nov 2021 13:01:05 GMT

Hey Siddhart!

That sounds like a plan!

I would recommend you to start off by taking a look at the GATT DFU SMP examples (here & here), as well as one that demonstrates how to use the UART.

Let me know if there is anything else!

Best regards,

Elfving

RE: UART DFU to nRF52840 on nRF91 DK Board using NCS SDK

Elfving — Fri, 12 Nov 2021 15:38:12 GMT

Hey Siddharth!

I'm looking into it, but I will have to get back to you over the weekend.

Best regards,

Elfving