RADE Error (Code 1) on KW47B42Z83AFTB — digital_key_car_anchor_cs_freertos

[chris123951]

 Hi NXP Support Team,

We are using the KW47B42Z83AFTB on a custom PCB for both ECU (anchor/car side) and Transponder (device side) roles.

Setup:
- SDK: SDK_25_12_00_KW47B42Z83xxxA
- ECU (Initiator / Car Anchor): flashed with digital_key_car_anchor_cs_freertos
- Transponder (Reflector / Device): flashed with digital_key_device_cs_freertos
- Both devices are on the custom PCB design

Issue:
On the initiator side (ECU / car anchor), we consistently receive RADE error code 1 during Channel Sounding procedures. RTT distance measurement runs correctly on both sides, but the RADE-based distance calculation fails at the initiator.

Questions:
1. Is RADE distance calculation supported on KW47B42Z83AFTB (no LCE) with the current SDK?
2. Does error code 1 indicate that LCE hardware is required but absent, or is there a software fallback available?
3. Are there any known configuration flags in app_preinclude.h or the CS profile layer that need to be set for RADE on a non-LCE variant?

Please let us know if additional logs or configuration files would be helpful.

Best regards
Christian

BLE-NFC  BLUETOOTH-BEACON 

[Ricardo_Zamora]

Hello,

Hope you are doing well. Is there any particular reason to use an IC version without LCE.

Anyways, I would recommend you checking this section from the SDK documentation: Enabling RADE v1 Usage (non-LCE) — MCUXpresso SDK Documentation

Best Regards,

Ricardo