-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Thanks Paul for the reply.
It looks like I must have completely messed up my circuit somewhere as I have a difference of 0.35V between 1-Wire data and ground in Idle mode! I can't fail to get the DS1990A polarity wrong. I ordered their sample to get a reader and a button (albeit the reader is F5 and the iButton is F3). Looks like I need to rebuild the circuit! Chris Paul Alfille wrote: > I've built the circuit myself. After a few awkward soldering attempts, it > did work. In fact it's been in use continuously over a year. > > So my first suggestion is to just test the voltages, with no devices > attached. The data line should be 5V higher than the ground. > > Second, make sure you are attaching the DS1990A with the correct polarity. > > After that, there is always the issue of correct ports, etc. The fact you > have different responses depending on what is attached suggests you have > chosen correctly. > > Please report on your progress. > > Paul Alfille > > On 8/22/06, Christopher Malton <[EMAIL PROTECTED]> wrote: >> > Hello, > I recently bought the parts for a 1-Wire adaptor (the DS9097), > and > assembled using the diagram on your site: > http://owfs.sourceforge.net/adapters.html > The real problem comes reading any chip from it. No matter how hard I > try, it fails to read my DS1990A iButton! > > Using OWHTTPD, it sits there for about 10 seconds refreshing the bus.0 > page, with the DS1990A, and without the DS1990A a mere millisecond. > > Do you have any suggestions as to a fix to solve this? > > > Chris >> >> - ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers >> > ------------------------------------------------------------------------ > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > ------------------------------------------------------------------------ > _______________________________________________ > Owfs-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/owfs-developers -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFE6/AXICjLB9Dfh/IRAlDLAJ4q6C0gFbUMwLehIKFWcca9ZXIoBwCcDN31 FU+TKAJLd3+8JMlBA9+hZOE= =nUSS -----END PGP SIGNATURE----- ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
