TX channel synchronization error occurs when initializing the baseband TX modules.
When initializing the baseband TX modules by calling the Open VI in the NI mmWave Reference Project, you may get the following error:
Error code: -1 Sync TX.vi<ERR> TX channel cannot be synchronized. The measured skew exceeds 1.5 samples.
This error indicates a synchronization issue between the PXIe-3610 Waveform Generator and the PXIe-7902 module.
Workaround: Ensure that both modules are placed in the same bus segment and are connected using mini-SAS HD cables that are less than or equal to 1 m. Ensure proper chassis fan settings, adequate airflow, and ambient temperatures within the specified operating range. Visit ni.com/manuals and refer to the mmWave Transceiver System Getting Started Guide or mmWave Transceiver System Specifications for environmental requirements.
If you modified the FPGA code and introduced additional delay on the in-phase/quadrature (I/Q) data path, ensure that you have compensated for this delay on the Host code.
After verifying proper hardware configuration and delay compensation in the code, try to reproduce the error by running the Multichannel Transceiver (Host) VI, found in the NI mmWave Reference Project. If the problem persists, contact National Instruments support at ni.com/support.
|Reported Version: 15.3
||Resolved Version: N/A