nrf5340dk how to setup (application core (empty_app_build)) as child image for network parent image

Hi Thamiz, 

Have you looked at this empty app core example: 
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/nrf5340/empty_app_core/README.html

The sample does exactly what you wanted to do it would enable all GPIO pins to be available to the netcore and then put the CPU on the app core to sleep. 

The next step is to include the empty app core as the child image to the netcore app. Please have a look here. So what you need is to simply add CONFIG_NCS_SAMPLE_EMPTY_APP_CORE_CHILD_IMAGE=y in the prj.conf of your netcore application. 

i am taking blinky sample, here i am not changing any setting and cofiguration and  build and run directly NETWORK CORE its build and running good, and programmed EMPTY APP CORE example in APPLICATION CORE. working perfect. 

but i am taking sample like (zephyr/sample/driver/can) example or (zephyr/sample/sensor/dht) example trying to running Network core mode, i can't able to build, came error. i want to change ant configuration or setting.

please asses me.

i am taking blinky sample, here i am not changing any setting and cofiguration and  build and run directly NETWORK CORE its build and running good, and programmed EMPTY APP CORE example in APPLICATION CORE. working perfect. 

but i am taking sample like (zephyr/sample/driver/can) example or (zephyr/sample/sensor/dht) example trying to running Network core mode, i can't able to build, came error. i want to change ant configuration or setting.

please asses me.

Hi, 
Have you added  CONFIG_NCS_SAMPLE_EMPTY_APP_CORE_CHILD_IMAGE=y  to the configuration ? 
Which error did you receive ?