I'm fixing up about 5 XO-1s I bought from eBay, all with what appear to be RTC issues. <br><br>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.<br>
<br>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.<br><br>Went back to a couple of the others and verified that serial adapter and console still worked<br>
<br>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 combinations of values, if instead there is knowledge out there that this is a recognized issue that indicates an SPI explosion or sumpin' :-)<br>
<br>Again no real panic, I can always use the parts.<br><br>Cheers,<br><br>KG<br>