[[Include(wiki:802.11/beta-note)]]

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= 802.11 Reference Design: Changelog =

== 0.3 Beta Release: ==
'''Download: [http://warpproject.org/dl/refdes/802.11/Mango_802.11_RefDes_v0.3_beta.zip Mango_802.11_RefDes_v0.3_beta.zip]'''

Release Details:
||= Hardware =||= Release =||= Date Posted =||= SVN Rev. =||= ISE Ver. =||= Arch =||
||  WARP v3  ||  0.3 Beta  ||  20-August-2013  ||  [browser:ReferenceDesigns/w3_802.11?rev=2164 2164]  ||  14.4  ||  Dual MB/AXI  ||

Changes in 0.3 Beta:
 * Many MAC/PHY bug fixes
  * Resolved rare deadlock in Rx PHY following late pkt det events
  * Updated LTS correlator (fixed offset-by-1 bug, increased dynamic range of stored coefficients)
  * Added high/low SNR thresholds for LTS correlation
  * Fixed bug related to asynchronous resets in decoder
  * Re-designed phase error correction system to apply pilot-derived phase estimates in same symbol period
 * Added 16-QAM rates to PHY Tx and Rx (24Mbps and 36Mbps)
 * Re-designed Ethernet I/O to use scatter-gather DMA (replaces Ethernet FIFO)
 * Completely redesigned wireless transmit queue
  * Much better handling of bursty Ethernet receptions
  * Ties into Ethernet DMA for zero-copy Ethernet payloads to placed directly in queue
  * Per-associated-station queueing of MPDUs awaiting transmission
  * Uses DDR3 SO-DIMM (if present) for large queues (up to 3000 packets)
 * Added UI for changing AP parameters over UART (after downloading design press Esc key to see menu)
 * Added support to en/disable new associates at run-time via the top push button (to avoid unwanted associations during experiments)

== 0.2 Beta Release: ==
'''Download: [http://warpproject.org/dl/refdes/802.11/Mango_802.11_RefDes_v0.2_beta.zip Mango_802.11_RefDes_v0.2_beta.zip]'''

Release Details:
||= Hardware =||= Release =||= Date Posted =||= SVN Rev. =||= ISE Ver. =||= Arch =||
||  WARP v3  ||  0.2 Beta  ||  30-July-2013  ||  [browser:ReferenceDesigns/w3_802.11?rev=2115 2115]  ||  14.4  ||  Dual MB/AXI  ||

Changes in 0.2 Beta:
 * Many MAC/PHY bug fixes
 * Better default thresholds for packet detection and Rx correlations
 * Added queue to CPU High Tx packet processing, to reduce chances of dropped packets during bursts at Ethernet Rx
 * Added support for disassociation and re-association handshakes in wlan_mac_ap.c
 * Stubbed out code for setting per-station, per-packet rates in wlan_mac_ap.c (ready for custom rate adaptation schemes)

Known issues:
 * Under very rare circumstances a deadlock can occur when RSSI-based packet detection is enabled. RSSI-based packet detection is disabled by default (in our tests the alternative auto-correlation packet detection is sufficient by itself).
 * Bursts of Ethernet receptions can cause dropped packets at the Ethernet MAC, due to the Rx buffer filling faster than the wireless Tx can process new packets. This manifests as a slight asymmetry between downlink and uplink throughput when using TCP. A faster Ethernet Rx -> wireless Tx queueing scheme is in the works which should address this.

== 0.1 Beta Release: ==
'''Download: [http://warpproject.org/dl/refdes/802.11/Mango_802.11_RefDes_v0.1_beta.zip Mango_802.11_RefDes_v0.1_beta.zip]'''

Release Details:
||= Hardware =||= Release =||= Date Posted =||= SVN Rev. =||= ISE Ver. =||= Arch =||
||  WARP v3  ||  0.1 Beta  ||  23-July-2013  ||  [browser:ReferenceDesigns/w3_802.11?rev=2086 2086]  ||  14.4  ||  Dual MB/AXI  ||

 * Initial beta release of 802.11 Reference Design
 * Compiling the 802.11 Reference Design requires an edk_user_repository of revision 2086 or later. Update your local edk_user_repository working copy to the latest version.