wiki:OFDMReferenceDesign/Changelog

Version 6 (modified by chunter, 16 years ago) (diff)

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OFDM Reference Design History

OFDM Reference Design v09 (2008-Jun-11)

  • Updated warpmac/warpphy & csmamac
    • Header interrupts are used to pipeline receive processions (i.e. an ACK is constructed and loaded into a PHY before the packet is even completely received)
    • Rx Data to Tx ACK turn-around time reduced from 80 microseconds to 30 microseconds
    • By default, left and right push buttons use left and right radios respectively (only for MIMO WARP kits)
    • Numerous tweaks to MAC timing parameters

OFDM Reference Design v08 (2008-Feb-08)

  • Download the XPS project: OFDM_ReferenceDesign_v08.zip
  • Built using cores and code as of repository revision 834
  • Updated OFDM PHY
    • Added support for header-only packets (like ACKs); numFullRateSymbols can be zero
    • Last two bytes of header are now a 16-bit CRC of just the header
    • Added new interrupt output for good header; asserts for non-header-only packets when header CRC passes
    • Added TxDone interrupt output; asserts when a packet transmission finishes
    • Fixed bugs in dynamic modulation mask usage
  • Updated warpmac/warpphy & csmamac
    • Changes to support new PHY features
    • Added TxDone & GoodHeader interrupt handlers; unused in this version
    • Added lots of comments to the source code to better explain various MAC/PHY interactions