This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC2642R-Q1: Bluetooth is not advertising, but other peripherals like GPIO,UART are working.

Part Number: CC2642R-Q1

Hi,

I have a custom-designed board that uses 12x12 CC2642 MCU just like in the launch board LAUNCH-XL CC26X2R1. My board's schematic is almost the same as the launch board. I have also an external antenna connected. We eliminated the PCB antenna.

Tested "Simple peripheral" code in LAUNCH-XL and Custom board.

LAUNCH-XL CC26X2R1 :

Advertising the BLE packets and all the peripherals are working.

Custom board(CC2642) :

1. All the controls to GPIOs pins are tested and Debug UART is working and we are able print the logs.
2. Code execution is verified and no hard fault detected.
3. I'am Measuring Crystal frequency of 24MHz , VDDR = 1.67V and DCOUPL = 1.27V but our RF is not working. We didn't measured 2.4GHz frequency in the spectrum analyzer.
We fallowed the exact RF trace as like Evaluation board(Differential, Internal biased).
We are using BLE stack 4.3
Please let me know what need to be verified and fixed so that BLE will advertise.

Could you please help me to fix this issue. If additional information needed means please let me know.

Thanks,

Reshma HC