On Wed, Feb 15, 2012 at 10:39 AM, Kevin Gordon <[email protected]> wrote: > > On Wed, Feb 15, 2012 at 1:34 PM, Paul Fox <[email protected]> wrote: >> >> kevin wrote: >> > I'm fixing up about 5 XO-1s I bought from eBay, all with what appear to >> be >> > RTC issues. >> > >> > 4 all worked nicely, page fault error from the serial adapter console, >> > entered the select/decimal/set-time, they rebooted and re-flashed very >> well. >> > >> > Alas, number 5, when I crank up the power, all that appears on the >> serial >> > console is a '+' sign, no pretty Forth message, no Page Fault error, >> just >> > that lonely arithmetic symbol. >> > >> > Went back to a couple of the others and verified that serial adapter >> and >> > console still worked >> > >> > Is there a possiblity that this one beast might have a different baud >> rate >> > or parity? I didn't really want to try the o, let's say, 32768 >> different >> >> no, it's not a baud rate or parity issue. if you look closely at the >> serial output from one of your working machines, you'll see that the >> very first character produced by OFW is '+'. <cr><nl> or <nl><cr> is >> next, then the Forthmacs strings. i believe mitch uses every one of >> those characters as a progress indication. dying as early as your >> machine does is probably not a good sign. > > > Darn. > > And I left my JTAG in my other pants. > > Kidding. > > I'll put it into the 'Investigate Later' bin, as it looks like it might take > a fair amount of time/effort with an appreciable chance of ultimate > failure. Back to the 1.75 I go ..... > > Thanks everyone for the quick replies. > > KG > > > >> >> >> paul >> >> =--------------------- >> paul fox, [email protected] > > > > _______________________________________________ > Devel mailing list > [email protected] > http://lists.laptop.org/listinfo/devel >
I now have one that came in for repair, and is showing the same behavior. Shows a + sign at power up on minicom. Sameer -- Sameer Verma, Ph.D. Professor, Information Systems San Francisco State University http://verma.sfsu.edu/ http://commons.sfsu.edu/ http://olpcsf.org/ _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
