From mailinglist at xyphur.de Wed Jun 6 14:00:44 2012 From: mailinglist at xyphur.de (Mario Doerr) Date: Wed, 06 Jun 2012 16:00:44 +0200 Subject: [ax25-layer2] NRZI problem? In-Reply-To: <4FA551E9.6050908@opentrac.org> References: <4FA416B5.3010300@xyphur.de> <00c001cd2a31$1c239330$0100a8c0@Janeway> <4FA4CE87.8090807@xyphur.de> <4FA5491F.50202@opentrac.org> <4FA551E9.6050908@opentrac.org> Message-ID: <4FCF628C.9050806@xyphur.de> Thank you all for the advices, it's working now. I've had some problems with the synchronization in my algorithms... From mailinglist at xyphur.de Wed Jun 6 14:05:36 2012 From: mailinglist at xyphur.de (Mario Doerr) Date: Wed, 06 Jun 2012 16:05:36 +0200 Subject: [ax25-layer2] NRZI problem? In-Reply-To: References: <4FA416B5.3010300@xyphur.de> <4FA50EC7.1020902@xyphur.de> Message-ID: <4FCF63B0.8000005@xyphur.de> > I bought some of those to tinker with. I had trouble with the > electrical interfacing (was using with a TXB104 3.3V<-> 5V level > translator to make it arduino compatible, and never worked out the > kinks) and the project got put aside due to work and school. I'm glad to have an "electrician" for problem like that ;) > > It's a bit of a pain because it's byte-oriented and AX.25 is bit > oriented (I have grown to hate bit stuffing), but I'm not telling you > anything new. :) > > I'd be interested to hear your progress. Yes, this byte<->bit orientation while syncing was the problem. This can really make headaches while you working on a microcontroller with a slow connection to the debugger :) BUT - the CMX is now working really fine for 1200 Baud. Best Mario