Firmware upgrade via UART

RE: Firmware upgrade via UART

Edvin — Fri, 24 Jan 2020 12:16:44 GMT

Hello Bjarke,

As mentioned in the original reply, there is already a uart bootloader in the SDK, so I suggest you check out that example, together with the guide.

BR,

Edvin

RE: Firmware upgrade via UART

Bjarke — Fri, 24 Jan 2020 10:53:25 GMT

Hi,

Did you manage to make a bootloader with firmware upload over serial?

Best regards

bjarke

RE: Firmware upgrade via UART

Edvin — Mon, 16 Sep 2019 14:17:20 GMT

I understand, but I believe it is easier to get started with the secure bootloader, because the open bootloader currently only supports USB (on the nRF52840, not UART). Make sure you have that up and running before you try to port the transport layer in this project to USB.

Once you know everything is working as intended you can try to port to the open(unsecure)_bootloader. DFU is a bit complex, so there are plenty of things that can go wrong, which is why I suggest that you test something you know that is working before porting it.

Best regards,

Edvin

RE: Firmware upgrade via UART

Autobot — Mon, 16 Sep 2019 12:57:23 GMT

Thanks for replay Edvin,

I don't need secure bootloader on my requirement. I interfacing nrf52832 into WiFi its basically work WiFi download nrf52832 updated .hex or .bin file only firmware from server and push into nrf52832 via uart communication

RE: Firmware upgrade via UART

Edvin — Mon, 16 Sep 2019 12:43:46 GMT

Hello Autobot,

You should read through this guide on getting started with DFU.

This guide shows how to use the BLE bootloader, but if I understand you correctly, you want to use the serial (uart) bootloader instead. Then you should use the SDK\examples\dfu\secure_bootloader\pca10040_uart example, and instead of using nRF Connect, you should use nrfutil (which is the same application that is used to generate keys and DFU images in the guide).

When you have installed nrfutil, type "nrfutil dfu serial --help" to see how to use this command.

Best regards,

Edvin