regarding ota in nrf5340

[manikandan]

hello,

i am using nrf5340 with ncs 1.9.1 i want to integrared ota on my custom board with custom firmware first i want to integrate ota on dvk with nrf5340 can someone please tell me how can i do that some link and document would be helpful

thanks and regards

manikandan v

[Menon]

Hello,

The folder mentioned here is from the hci_rpmsg sample under the zephyr. This is the sample running inside the network core of the nRF5340.

Please see that this repository is not based on OTA DFU. It is based on serial DFU. Refer to this sample instead.

Kind Regards,

Abhijith

[manikandan]

1)is external flash is must for updating both network and the app bin simultaneously

2why i cant merge both the bootloader and app in to single zip and try to do ota like nrf52832.?. and

3)is it neccasary to update both net and app core everytime while doing ota

4)also is there documents for adding ota to the firmware with both app and network core?

[Menon]

Hello,

manikandan said:

)is external flash is must for updating both network and the app bin simultaneously

It is not necessary to use an external flash for doing the simultaneous DFU for the nRF5340 but the external flash will make the things little more smooth. You can work with the internal flash for doing this.

manikandan said:

2why i cant merge both the bootloader and app in to single zip and try to do ota like nrf52832.?. and

Please see the section Building FOTA  Images and Output build files.

manikandan said:

3)is it neccasary to update both net and app core everytime while doing ota

No it's not necessary to do a simultaneous DFU all the time. You can update the cores one at a time but ,if you are updating the interface between the two core, then you need to update both cores at the same time.

manikandan said:

also is there documents for adding ota to the firmware with both app and network core?

I think the sample I mentioned in my last response shows a simultaneous DFU or you can refer to  this sample from the same repository.

Kind Regards,

Abhijith