Changes between Version 17 and Version 18 of CSMAMAC

Timestamp:

Feb 8, 2008, 12:18:16 AM (16 years ago)

Author:

chunter

Comment:

--

CSMAMAC

@@ -152 +152 @@
 === Accepted Packet from Source ===
 
+This state is entered if a higher layer has a packet it needs transmitted. For the reference design, this means a packet has arrived via Ethernet and needs processing.
+
 ----
 
 === Medium State ===
 
+The purpose of this state is to check to see if the medium has been idle for a DIFS period.
+
+{{{
+#!c
+warpmac_carrierSense(-);
+}}}
+
+Is called and returns a 1 if the medium is idle (and hence the medium can be contented for) and a 0 if the medium is busy (and hence the node must wait).
+
 ----
 
 === Transmit Packet via PHY ===
 
+To transmit a packet over-the-air via the OFDM physical layer, the MAC calls
+
+{{{
+#!c
+warpmac_sendOfdm(&txBuffer);
+}}}
+
+The argument of this function
+
+
+
+
 ----
 
@@ -172 +195 @@
 === Received Packet via PHY ===
 
+This state kick-starts the receive states. 
 ----
 
 === Checksum ===
 
+Either 
+
+{{{
+#!c
+int receiveGoodPacket(-) 
+}}}
+
+is called in the event of receiving a packet that passes checksum or
+
+{{{
+#!c
+int receiveGoodPacket(-) 
+}}}
+
+in the event of receiving a packet that fails checksum.
+
+
+
+
 ----