If you have a GPS sattelite nearby, I can see how that can cause a problem. But how does a nearby GPS receiver give you problems?
Dave Cornelius Claussen <[EMAIL PROTECTED]> wrote: Hi, I don't think that it is really an EMI problem if you are using shielded USB cables. I had a lot of EMI problems with a nearby GPS, but had no problems with USB so far. Maybe this is just a driver issue. Seems you are not the only one having this problem: http://mhonarc.axis.se/dev-etrax/msg08499.html -Cornelius Am Mittwoch, 13. Februar 2008 schrieb Patrick Bellasi: > Hi everybody! > > Has anyone experimented issues using the FoxBoard and a USB-to-Serial > converter? > > I'm using an FTDI to build a UART port for connecting a GPRS modem. > Generally the modem work fine but sometimes the ppp daemon shutdown and > looking at dmesg I could read the sentences reported on attachment. > > The USB port is being disabled by the HUB, possibly due to EMI, and > thereafter immediately re-enabled. My suspect is that the FoxBoard someway > produce EMI that affect USB communications and > > Has anyone experimented similar instabilities? > Has anyone monitored FoxBoard electromagnetic emissions? > ... and even more important: is the FoxBoard CE compliant?!? > > Thanks > Patrick > > -- > <-------------------------------------------------------------------------- >--------------------------------> DERKLING > LRU 338214 (http://counter.li.org) > > "I invented it, Bill made it famous." - David Bradley > (wrote the code for Ctrl-Alt-Delete on the IBM PC) > <-------------------------------------------------------------------------- >--------------------------------> Patrick Bellasi > sourceforge dot net> > PhD Student on Computer Science at Politecnico di Milano > > Contacts: > - ICQ 344672588 > - MSN derkling at yahoo dot it > - Skype derkling > > Personal Sites: > - Bookmarks http://del.icio.us/derkling > - Bibliography http://www.bibsonomy.org/user/derkling > - Music taste http://www.last.fm/user/derkling/ > > Privacy: > - GnuPG 0x72ABC1EE (keyserver.linux.it) > pub 1024D/72ABC1EE 2003-12-04 Patrick Bellasi > Key fingerprint: 3958 7B5F 36EC D1F8 C752 9589 C3B7 FD49 72AB C1EE > <-------------------------------------------------------------------------- >--------------------------------> -- Cornelius Claussen opentek GbR Mobile: +49 (0)175 6944518 E-Mail: [EMAIL PROTECTED] Internet: http://www.opentek.de USt.-IdNr.: DE242952925 Yahoo! Groups Links
