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

The Secure and nonsecure environments in the ARM Cortex-M33 processor of the nRF5340 is explained in detail in Part 2 | section 1.6 of our nRFConnect SDK tutorial.

In short, the nRF53 has two cores. The application core(appcore) and network core (netcore). Then, in the appcore you can choose whether to use a secure or non-secure environment for your application. In order to flash a BLE example onto the nRF5340 with SES, follow the Building and programming a sample, and make sure you set CONFIG_BT_RPMSG_NRF53 to y before programming the network sample from SES. 

If you're new to the nRF53 and NCS environment, I think it's easier to use nrfjprog or west to flash this example onto the nRF53DK.

Best regards,

Simon

[Sunil vignesh]

Hi Simonr,

Yeah i am new to nRF53  and NCS SDK

this nrfjprog or west are the CMD is it right?

and

Simonr said:

CONFIG_BT_RPMSG_NRF53

 where we need to find These kind of configuration lines

Is there example code for writing

1. Data in flash storage for nRF53

2. TWI data sensing