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[ts-7000] Re: TS-7800 wake from sleep using dio_04 (interrupt)

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Subject: [ts-7000] Re: TS-7800 wake from sleep using dio_04 (interrupt)
From: "Charles" <>
Date: Sat, 06 Feb 2010 16:08:46 -0000
Hi --

--- In  "" <> wrote:
>
> Hello?
> Is there a different group for the TS-7800; there seems to be alot of 7200 & 
> 7400 questions?
> 
> I've attempted to contact TS for the past few days about this issue to no 
> avail.  Just wondering if anyone has had similar experience and possibly a 
> work around for interrupt driven wake-up for TS-7800
> 
> I'm now looking into the ATMEGA48V AVR_RESET# (PC6) signal; or possibly some 
> io driven relay controlling the pwr directly... 

I looked through ts7800ctl.c, and there doesn't seem to be much there.  I was 
curious how the kernel was being notified about going into a sleep state, but 
it seems the in-kernel suspend / resume /hibernate is not being used at all.

Surely there must be more than just using the AVR as a glorified power switch?

regards, ............ Charlie

> 
> Unfortunate when the documentation says it supports such a feature :[
> 
> thanks
> -mike
> 
> --- In  "michaelheins@" <mike_alias@> wrote:
> >
> > 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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