Changes between Version 12 and Version 13 of 802.11/PacketFlow
- Timestamp:
- Oct 14, 2014, 4:01:13 PM (10 years ago)
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802.11/PacketFlow
v12 v13 104 104 u32 channel_est[64];///< Rx PHY channel estimates 105 105 } rx_frame_info; 106 }}} 106 107 107 108 The PHY begins writing received bytes immediately after the {{{rx_frame_info}}}. The received SIGNAL and SERVICE fields are written to the first 5 bytes following the {{{rx_frame_info}}}. The PHY then skips 3 bytes and writes the next received byte (the first byte of the MAC header) to 8 bytes past the rx_frame_info. This convention aligns received payloads to a 64-bit boundary, easing access by the MAC software and DMAs. Generally the MAC software ignores the SIGNAL and SERVICE fields in the Rx packet buffer, instead relying on the rate/length values provided by the MAC core.