Philip, thanks for help. I was reading one paper from David Culler regarding the immediate ACK in TinyOS. Just curious, was it actually a packet, or through certain correlated signals or something? From your email, it seems like a packet is actually sent out. Correct me if I understand wrong. Thanks.
-----Original Message----- From: Philip Levis [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 07, 2006 6:21 PM To: Adam Cc: 'TinyOS Help' Subject: Re: [Tinyos-help] How does CC2420 ACK implemented On Wed, 2006-06-07 at 17:04, Adam wrote: > I notice CC2420 radio control model support immediate ACKs. I am > curious how it is implemented? Is it through an explicit short > message? Can we capture the ACK message through certain tools? Thanks. Check out the CC2420 data sheet. The TinyOS 1.x stack uses hardware-generated acknowledgments. Software processes received acknowledgments. The 2.x stack also uses hardware-generated acknowledgments. The Boomerang stack uses software-generated acknowledgments. If you're digging into the CC2420, I *strongly* recommend getting a developer's kit. They run about $600, but have software that lets you inspect every packet sent out, which lets you really easily figure out if a problem is in the receiver or in the transmitter. Phil _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
