---------- Forwarded message ---------- From: SourceForge.net <[EMAIL PROTECTED]> Date: Jul 3, 2006 10:49 AM Subject: [ owfs-Bugs-1516387 ] DS2490 problems To: [EMAIL PROTECTED]
Bugs item #1516387, was opened at 2006-07-03 23:49 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=576393&aid=1516387&group_id=85502 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: owhttpd Group: None Status: Open Resolution: None Priority: 5 Submitted By: Claes (greven777) Assigned to: Paul Alfille (alfille) Summary: DS2490 problems Initial Comment: Dear all I'm still having problems getting my DS2490 interface to work properly with my Linux box. The problem was described earlier in the port "Debug questions" and the problem is that devices on the bus disappears and also fails to read values randomly. When this happens I get a lot of BUS_read_error, BUS_select_low and BUS_CRC errors in the statistics section and the debug output shows the following when an error occurs: DATA: DS9490_reset DATA: DS9490_reset: ok DATA: DS9490_read: failed ret=0 CONNECT: SELECTION ERROR When it looked like this might be an electrical problem on the 1-wire bus I tried a lot of things including RC filers and resistors to reduce echo's, --altUSB switch for USB timings etc. but there were no improvements. I also tried the DSL CD provided on several different PC HW, but with the same problem (DSL also have a 2.6 kernel). When Vincent suggested this might be Linux kernel related I installed the OW development kit provided by Dallas on my WinXP PC (AMD X2 3800+) and was very surprised to see that it worked perfectly (no errors, missing devices and correct values read every poll which was 1 second). I just assume this would rule out any 1-wire bus electrical problems. I would however really like to use OWFS on my Linux box, but downgrading to kernel 2.4 is not an option as I have other things running which require 2.6. Some more info: My Linux version is Mandriva 2006 (clean install from CD) running default kernel 2.6.12-12, using FUSE 2.5.3 (downloaded & compiled), default libusb 0.1.4 (came with dist), owfs 2.4p3 compiled and installed without errors (also tested 2.4p1 and p2). The Linux HW is an EPIA Via V10000 ITX board with a 1GHz EDEN CPU, 512Mb memory etc., however as I tested on other HW with same problem I don't think it is a HW issue and the CPU performance should be enough I think. Help! Does anyone have any ideas on what might be wrong here? Best Regards /Claes Martinsson ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=576393&aid=1516387&group_id=85502 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
