The minimum receive on-time for the default LPL implementation (ack) when there are no transmitters nearby is around 5.6 ms.
When a transmitter is found, the receiver remains on long enough to detect a packet - which is anywhere from 20 to 50 ms. I believe I have it set for 50 ms right now just so nobody has an issue with reliability. If no valid packet is detected, the radio goes back to sleep. If a valid packet is detected, the radio remains on for about 100 ms after the last valid packet is transmitter or received. Each time a packet is transmitter or received, that 100 ms timer gets reset. This allows you to perform some kind of high speed data transaction that may take awhile, and no reconfiguration of LPL is required to do so. -David -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Antonis Lambrou Sent: Friday, April 20, 2007 2:03 PM To: [email protected] Subject: [Tinyos-help] LPL for CC2420 in tinyos-2.x ________________________________ From: Antonis Lambrou Sent: Fri 4/20/2007 9:21 PM To: [email protected] Subject: LPL for CC2420 in tinyos-2.x What's the minimum and maximum time of the receiver's listening period at each duty cycle? I understand that if there is no traffic at all the receiver will turn off the radio immediately after CCA check and I'd like to know how long does that take, but also how long it takes as well when there is traffic. Thank you [EMAIL PROTECTED] _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
