Article ID: 000099169 Content Type: Troubleshooting Last Reviewed: 06/19/2024

Why does the avst_source_u_data data interface overflow when using Block floating-point (BFP) compression with the O-RAN FPGA IP?

Environment

  • Intel® Quartus® Prime Pro Edition
  • Interfaces
    • BUILT IN - ARTICLE INTRO SECOND COMPONENT
    Description

    Due to a problem in the O-RAN FPGA IP,  raw IQ Samples (iSample and qSample) data exponent only supports up to power of 7 in Block floating-point (BFP) compression.

    If the exponent is larger,  the avst_source_u_data interface will overflow.

    Resolution

    To work around this problem, users should ensure that they scale the raw IQ Sample data to keep the exponent within 7.

    This problem is scheduled to be fixed in a future release of the O-RAN FPGA IP.

    Related Products

    This article applies to 2 products

    Intel® Arria® 10 FPGAs and SoC FPGAs
    Intel® Stratix® 10 FPGAs and SoC FPGAs

    Need more help?

    Contact support

    Disclaimer

    1

    All postings and use of the content on this site are subject to Intel.com Terms of Use.