ZigBee Coordinator and BLE peripheral nus

Question

Hi to all, I'm developing a new device that should be a multiprotocol: Zigbee (as coordinator) and BLE peripheral (nus).

I use the nrf5_sdk_for_thread_and_zigbee_V4.1.0_32ce5f8 \examples\multiprotocol\ ble_zigbee_dynamic_light_switch_nus example f or development, This project compiles OK before making changes. A ccording to" https://devzone.nordicsemi.com/f/nordic-q-a/50748/zigbee-coordinator-and-ble-peripheral " , I made the following modifications in this sample project: 
 1. Change zb_set_network_ed_role() to use zb_set_network_coordinator_role(). 
 2. Add zb_set_max_children(10 for example). 
 3. Change the included library. Use libzboss.a instead of libzboss.ed.a . 
 4. The IDE I used was Keil5. I modified ZB_ED_ROLE to ZB_COORDINATOR_ROLE in the "Preprocessor Symbols" of "Options for Target 'NRF52840_XXAA". 
 After the above modification, error "No space in execution Regions with.ANY selector matchingXXX" is displayed appeared when compiling the project 
 The error messages are summarized below：

"Build target 'nrf52840_xxaa' 
 linking... 
 .\_build
rf52840_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching nrf_802154_rx_buffer.o(.bss). 
 .\_build
rf52840_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching main.o(.bss). 
 .\_build
rf52840_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching nus.o(.bss). 
 ........ 
 Not enough information to list image symbols. 
 Not enough information to list load addresses in the image map. 
 Finished: 2 information, 0 warning and 193 error messages. 
 ".\_build
rf52840_xxaa.axf" - 193 Error(s), 0 Warning(s). 
 Target not created.”

Are there any modifications to the project that I haven't made yet? 
 What should I do to solve this issue 
 Many thanks for answer

Jon_chen · Accepted Answer

This problem is solved because keil's simulated chip memory is not enough, less than the actual chip memory. 
 The solution is to increase the chip analog memory given in the KEil setup