Changes between Version 2 and Version 3 of Old/TinyOS/Serial


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Timestamp:
Dec 24, 2008, 1:17:24 AM (16 years ago)
Author:
shweta
Comment:

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  • Old/TinyOS/Serial

    v2 v3  
    11== Mote-PC Serial Communication ==
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    3 The basic abstraction for mote-PC communication is a '' packet source ''. A packet source is a communication medium over which an application can receive packets from and send packets to a mote.
    4 Examples of packet sources include serial ports, TCP sockets, and the SerialForwarder tool. Most TinyOS communication tools take an optional -comm parameter, which allows you to specify the packet source as a string. For example:
    5 
     3The receivers receive packets from senders and pass them on to the serial port. Tinyos provides two java tools  (Listen and MsgReader) to print the messages on the PC console.
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    12 tells Listen tool to use the serial port /dev/ttyUSB0 at the correct speed for a telosb mote.
    13 
    14 Listen creates a packet source and just prints out every packet it sees. Output should look something like this:
     10The Listen tool receives the packets and prints the raw packets to the PC console. Output should look something like this:
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    37 We use MsgReader to print out the messages.
     33MsgReader is a better alternative to Listen. The MsgReader class takes a java message class (provided by the user) as an argument. It prints receives the packets from the serial port and prints the packet structure defined by the java message class.
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