Hi, I'm Tommaso Mineccia, a student in Computer Engineering of University of Florence. I need to do some tests with the Iris mote using TinyOs 2.1.0 and the LowPowerListening interface. I have read the Tep105 and the tutorial "Writing Low-Power Applications" but I don't understand some things.
1. When I use a timer there is an event for its firing, but when I use the LPL interface which event is called when the radio turn on? 2. In TinyOs 1.0 LowPowerListening interface had some command to set the preamble length and check interval length, in TinyOs 2.1.0 is possible to set those parameters? If they are static, how long they are? If I can change they, where can I find their settings? 3. The tutorial says "Because the LPL check period is much longer than a packet, a transmitter must send its first packet enough times for a receiver to have a chance to hear it. The transmitter stops sending once it receives a link-layer acknowledgment or a timeout". How many times the transmitter sends the packet? Can I change this parameter? How long are the ack-wait timeout and the timeout before the transmitter goes to sleep? 4. For my tests I take the timestamp of each packet that my mote receive and transmit and I store the value in the mote log, how can I read that value on my PC? Thanks a lot for your time, Tommaso Mineccia
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