RE: Can you give me a sample about how to USB to DFU the network core?

ken.oujingxue — Mon, 06 Feb 2023 10:25:36 GMT

Thanks

RE: Can you give me a sample about how to USB to DFU the network core?

Amanda Hsieh — Fri, 03 Feb 2023 15:20:05 GMT

See my colleague's sample to test updatable bootloaders at Sample on how to use NSIB(b0) to update MCUBoot feat. SMP Server.

-Amanda H.

RE: Can you give me a sample about how to USB to DFU the network core?

ken.oujingxue — Fri, 03 Feb 2023 10:07:07 GMT

Hello

Thank you for your reply.
Another question, how to DFU the mucboot？

RE: Can you give me a sample about how to USB to DFU the network core?

Amanda Hsieh — Thu, 02 Feb 2023 18:28:43 GMT

Hi,

I have nRF53 MCUBoot Serial Recovery Sample over USB CDC for netcore and appcore with mcumgr sample devzone.nordicsemi.com/.../netcore_5F00_serial_5F00_recovery_5F00_cdc_5F00_acm.7z for NCS2.2.0, but it's not based on that USB sample.

Add the following log to the main function in the zephyr\samples\bluetooth\hci_rpmsg\src\main.c

	printk("Board config %s\n", CONFIG_BOARD);
	printk("IMAGE_VERSION %d\n", CONFIG_FW_INFO_FIRMWARE_VERSION);
	printk("build time: " __DATE__ " " __TIME__ "\n");

Build and flash the program using west:

west build -p -b nrf5340dk_nrf5340_cpuapp && west flash --recover

Connect the terminal, and it would show as the following.

Then, Modify the version number in the prj.conf and hci_rpmsg.conf, and recompile the project for the update.

To activate the Serial Recovery Mode, hold Button 1 while restarting the Developement Kit. Now, you should be able to communicate with the bootloader using mcumgr:

mcumgr conn add acm46 type="serial" connstring="COM46,baud=115200,mtu=512"
mcumgr -c acm46 image list

The list command should print:
Images:
image=0 slot=0
version: 1.0.0.0
bootable: false
flags:
hash: Unavailable
Split status: N/A (0)

Locate under build\zephyr and update new images for appcore and netcore:

mcumgr -c acm46 image upload -e app_update.bin -n 1
mcumgr -c acm46 image upload -e net_core_app_update.bin -n 3

Redet the nRF5340DK:

The netcore would not boot up with the new image in after updating in v2.1.0. It's fixed in v2.2.0.

Hope this can help.

Regards,
Amanda H.