Other Parts Discussed in Thread: CC2640R2F,
I have a custom-designed board that uses 7x7 MCU just like in the launch board. My board's schematic is almost the same as the launch board. I have also an external flash on the same pin, I have a motion sensor but I connected my sensor's interrupt pins on exactly the same with button pins of launch board, same I2C pins, same SPI pins, same UART pins, etc. Because of that, I did not think to create a custom board header and source files, instead, I use CC2640R2_LAUNCH.h and c files. I did not use 32KHz crystal but I already did this configuration properly. I am sure because before getting my custom board, I developed my code on the launch board referenced by custom board schematic. Only, I think, the related difference between custom and launch board is RF pins' schematic. I used Single-ended with external bias configuration.
I got my custom boards today and I can upload my code on it (as I said, I worked on launch board before, I directly upload this code just changing the "#define CC2650EM_7ID" line with the "#define CC2650EM_4XS" line in CC2640R2_LAUNCH.h file). My code does really basic things via Bluetooth, just sends the data that it received before on the same characteristic.
The PROBLEM IS: I cannot connect to the board, it seams connecting on UART terminal (since I use OAD Off-Chip example basis) just after I got "timed out" and it kicks out my connection suddenly ( I think, 3. party BLE applications try to connect successively, I tried with NRF Connect and BLE Scanner applications). I know I cannot explain the problem well, because of that, I added a video.
Also, THIS IS NOT A HARDWARE PROBLEM, you can check my other issue named "Custom Designed Board Bluetooth Connection Problem".
This project is very important for me and my company also, please help me about that.