uart DFU in mcuboot bootloader

RE: uart DFU in mcuboot bootloader

Sigurd Hellesvik — Wed, 29 Dec 2021 08:09:38 GMT

If you want to know exactly how mcumgr works, see the source code: https://github.com/zephyrproject-rtos/mcumgr.

What do you mean by "customize the uart protocol"?

Regards,
Sigurd Hellesvik

RE: uart DFU in mcuboot bootloader

sixuanlu&sky — Wed, 29 Dec 2021 03:22:17 GMT

Hi Sigurd

in our solution we need to customize our uart protocol, so that we can fetch the image file from the modem module properly.

When I use mcumgr to upload image file , the command is as following

mcumgr --conntype=serial --connstring=COM14 image upload build/zephyr/app_update.bin

what's protocol is the uart communication using ? How is the image data sending by uart ?

Best Regards

Sky Lu

RE: uart DFU in mcuboot bootloader

Sigurd Hellesvik — Tue, 28 Dec 2021 08:18:05 GMT

The SMP server sample showcases how MCUBoot can be used with mcumgr. In this sample you can choose between different protocols for DFU, one of which is UART.

For documentation on MCUBoot, see our pages on Bootloaders and Device Firmware Updates as well as MCUboot documentation.

If you have any questions to the documentation or face any issues, let us know, and we will help.

Regards,
Sigurd Hellesvik