nrf5340 - netcore and cpuapp build and upload issue

[Sunil vignesh]

Hi, I am trying to get start nRF5340 and projects. In NCS 1.5.0 

i am following this link https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/ug_nrf5340.html

There i have seen

cpuapp

cpuappns

cpunetcore

I can't able to understand about secure and non-secure CPU

and I have get start the nRF5340DK with nrf_blinky so. I used cpuapp nrf5340dk

and created the netcore but while download the netcore hex. from SES but showing the error no input file

[Simonr]

Hi Sunil

According to the "Programming the network sample from SES guide, you should first build an application onto the app core before trying to flash the hci_rpmsg_nrf5340_netcore application onto the network core. Are you able to do that successfully first? It seems like you're mixing these two processes together.

Best regards,

Simon

[Sunil vignesh]

Hi Simonr, Yes before flash the netcore. I am able to build the application core successful.. but i can't able to flash the netcore hex file from the segger studio. Instead of doing that i am able to flash the netcore hex file from nrf connect desktop. and after that i am able to flash the application core from the segger studio.

and i have a question that is it possible to update the netcore in DFU OTA  without affecting the application core

[Simonr]

Sunil vignesh said:

and i have a question that is it possible to update the netcore in DFU OTA  without affecting the application core

 This is no longer the same subject as your initial ticket, so I would appreciate it if you could create a new ticket for this question, as it will help others to keep each ticket on subject.

If you're happy flashing the network core using nRFConnect for Desktop that should be fine as well, but it should be possible flashing it using SES as well, but it's important to follow the guide step-by-step. 

Best regards,

Simon