Hello Group;
I've recently tried the schematic documented wake by dio_04 when the ts7800 has
been put to sleep using the provided ts7800ctl -s command. This causes the
ATMEGA48V micro to cut power to the ARM, and sleep in a very low power mode
~200uA. It works great... well the sleep does. The details described from
this post here:
http://tech.groups.yahoo.com/group/ts-7000/message/11870
The problem is waking the board; the schematic says either the dio_04 or
ISAB32(GND) can edge interrupt the ATMEGA48V awake, but the only thing I see
happening when grounding out the dio_04 pin is the board comes halve awake.
The current draw ramps back up, the board GRN LED blinks, but the board does
not reboot; it just prints a single garbage character out to serial COM1 and
hangs.
I have a couple clues from the ATMEGA48V datasheet, but without the source code
who knows how that interrupt is being handled...
My question to the group is: has anyone had this interrupt by dio04 or ISAB32
successfully wake the ts7800? if so how?
-mike
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