#: 5045 S10/Tandy CoCo
10-Jul-90 16:03:50
Sb: #5044-#Dedicated CoCo3
Fm: Kevin Darling (UG Pres) 76703,4227
To: LARRY OLSON 72227,3467 (X)
Larry - in an MOTD not long ago, there was an article about a greenhouse
controller built around a coco-3 and os9. What they did was to use that 512K
battery-backed ram you see advertised in Rainbow. It was their ramdisk and boot
device. That allowed them to change things around, but still always reboot
after a power failure.
It might also be possible to write a special interrupt-driven driver, which
would be triggered by a coming power loss.... it would save out the entire
state of the machine to ramdisk (probably to a partition so it doesn't go thru
rbf) and set a flag for the reboot routine to reload that saved state and
return as if nothing had ever happened. Altho you'd probably want to note it in
the logbook .
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