nRF21540 does not work

Question

I use nRF52840DK and nRF21540EK to develop BLE programs, and the program uses FLASH for BLE image storage, the program works well on the DK. However, when I burned it into our own drawn PCB, FEM didn't seem to work (couldn't search for the device I wanted to connect to). 
 We tried to find out if nRF21540 was the cause, however when we burned another BLE program, the FEM was working correctly (broadcast device). 
 
 3146.code.zip 
 This is a program that doesn't work。 
 1385.Code1.zip 
 This is the test program.

carefree · Accepted Answer

I think I have found the reason for the problem. Since I used Bluetooth extended directional broadcast, my transmitter should turn off or change the host address of directional broadcast. However, in my test, I set it to the DK board, so that the rest of the PCB could not be searched for connection. 
 After the problem is solved and solved, the function of nRF21540 is normal, which is verified in the signal quality detection of nRF21540 opening and closing. 
 Thank you very much for your help.

nRF21540 does not work

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