Changes between Version 13 and Version 14 of CSMAMAC

Timestamp:

Feb 7, 2008, 10:50:30 PM (16 years ago)

Author:

chunter

Comment:

--

CSMAMAC

@@ -22 +22 @@
 == Life of a Packet ==
 
-Below is the state-machine representation of the above algorithm. Each state can be "clicked" and is described in detail in the accompanying link. The up-to-date code can be found here: [source:/ResearchApps/MAC/CSMA/csmaMac.c@L csmaMac.c]. The API documentation for the code can be found here: [http://warp.rice.edu/WARP_API/csma_mac_8c.html CSMAMAC API]
+Below is the state-machine representation of the above algorithm. Each state can be "clicked" and is described in detail in the accompanying link. The up-to-date code can be found here: [source:/ResearchApps/MAC/CSMAMAC/csmaMac.c@L csmaMac.c]. The API documentation for the code can be found here: [http://warp.rice.edu/WARP_API/csma_mac_8c.html CSMAMAC API]
 
 {{{
@@ -59 +59 @@
 ----
 
+Note: Through all of the following descriptions, a "-" is used in place of arguments to functions when those arguments are not important to the overall purpose of the description. Howeverm, that is not to say that these arguments can be changed to ''anything'' and have the code still compile and run successfully. Care must be taken in modifying the reference design.
+
 === Idle ===
 
@@ -68 +70 @@
 }}}
 
-function of [source:/ResearchApps/MAC/CSMA/csmaMac.c@L csmaMac.c].
+function of [source:/ResearchApps/MAC/CSMAMAC/csmaMac.c@L csmaMac.c].
+
+==== Steady State ====
+This block of code calls the following [http://warp.rice.edu/WARP_API/warpmac_8c.html WARPMAC] functions:
+
+{{{
+#!c
+warpmac_getMyId();
+}}}
+
+This function reads the current setting on the [wiki:HardwareUsersGuides/FPGABoard_v1.2/UserIO#DIPSwitch Dip Switches]. The value is used simply to identify the node in the network. For the purposes of the Reference Design, one node must be identified as "0" and the other as "1."
+
+{{{
+#!c
+warpmac_init()
+}}}
+
+This function sets reasonable default values for many of the parameters of the MAC, configures interrupts and exceptions, configures Ethernet, and finally initializes the custom peripherals such as the radio controller, the PHY, the packet detector, and the automatic gain control block.
+
+{{{
+#!c
+warpmac_setMacAddr(-);
+}}}
+
+This function sets the wireless MAC address of the node.
+
+{{{
+#!c
+warpmac_setMaxResend(-);
+warpmac_setMaxCW(-);
+warpmac_setTimeout(-);
+warpmac_setSlotTime(-);
+}}}
+
+These function set up internal parameters of the MAC. The maximum number of resends is the maximum number of times that a packet should be retransmitted, in the event of not receiving an acknowledgment. The maximum contention window defines "how random" backoffs should be in the worst case. The timeout time is the amount of time that the MAC should wait on an acknowledgment before retransmitting. Finally, the slot time is a length of the minimum contention window.
+
+{{{
+#!c
+warpmac_setRxBuffer(&rxBuffer,0);
+warpmac_setTxBuffer(1);
+}}}
+
+The newest version of the [wiki:OFDM PHY]
+
+
+{{{
+#!c
+int main()
+}}}
+
+
+{{{
+#!c
+int main()
+}}}
+
+
+{{{
+#!c
+int main()
+}}}
+
 
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