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CCS/CC2652R: No RF Output at Custom Board (single ended, internal bias) with Zigbee Demo Code

Part Number: CC2652R

Tool/software: Code Composer Studio

Hi community,

I designed a PCB with a CC2652. The front-end is as suggested in "Hardware Configuration and PCB Design Considerations" (Figure 1, middle)  for single ended with internal bias and connected to PIN 1 (RF_P) and connected a 2.4GHz antenna.
I started with the demo project for zed-sw, changed in "mac_user_config.h" RF_FE_MODE_AND_BIAS to

#define RF_FE_MODE_AND_BIAS (RF_FE_SINGLE_ENDED_RFP | RF_FE_INT_BIAS)

and loaded it to the controller.
Unfortunately I'm not able to see any packets with the packet sniffer and also have no possibility to measure the RF part of the PCB at this moment.

Have I missed some other settings, which has to be changed for this front-end configuration?

Running this code on the demo-board works and I can see messages at the packet sniffer.

BR
Florian

  • Hi,

    Would it be possible to interface your board with our Launchpad and use SmartRF Studio? This way you can check whether your Hardware is OK or not?

    Did you check the power supply voltages on the PS pins and also Crystal oscillator signal?

    Thanks,

    PM