-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Christian Fl�gel wrote: > We have three Mica2dots which do not work anymore. Two of them are not > even discoverable (uisp cannot detect them) and usip supplies the > following error:
Did you read this? http://www.xbow.com/Support/Support_pdf_files/UISPHELP.pdf Here we have had a lot of similar issues with our Atmega128-based products, one of them being fuses taking life of their own and rebelling for no apparent reason (just turning the device off and on). Some chips may be brought back only via the parallel programming mode (neither SPI nor JTAG will do since the fuses affected may be exactly the ones that disable these modes or change the clock configuration), others are gone to oblivion forever. I don't know if it is possible to use the parallel programming mode with the mica2dot design --for example using a parallel STK programmer-- since it takes a lot of pins, 12V must be applied to the RESET pin and not all the boards take this in consideration... It appears that newer Atmega128 masks correct some of the earlier problems, specially one concerning the LPM instruction --last year I lost ~3 weeks of my precious time debugging a *big* program and finally the problem turned out to be this nasty errata that corrupted the Flash memory. However some well known bugs are still there... HaPpY hAcKiNg :P - -- PabloBleyerKocik /"I believed that people would become programmers pbleyer / and not need companies as much. You can see how @embedded.cl / laughable that was." -- Steve Wozniak -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (MingW32) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFCENuaF5qpHYMA2a0RAtW2AKCCXOb3flvjzp72ZWlDm+7Z/qPNkwCfRJoR h71HORuVqMMlFGVpL3qU4ys= =3vwv -----END PGP SIGNATURE----- _______________________________________________ Tinyos-users mailing list [email protected] http://mail.Millennium.Berkeley.EDU/mailman/listinfo/tinyos-users
