RE: Re: Bootloader after piggyback / what is jtag

Hi

Suspend is controlled by a combination of hardware and software.
The boot loader has an important role here,
but the OS also has to save states in
the low level routines.
Hardware support is also needed to save power of course.

On SA1110 everything goes through the reset state.
In a register the boot loader can see the cause of the reset.
The register says if it was a sleep reset or something else.
If it was a sleep reset the system must not need to be reinitialized,
but the drivers must restore the state in the OS.

Regards
Walter


> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of mozdyn
> Sent: Tuesday, September 14, 2004 8:43 AM
> To: [email protected]
> Subject: Re: [Simpad-general] Re: Bootloader after piggyback / what is
> jtag
> 
> 
> On Tue, 14 Sep 2004 04:14:15 +0200
> Ralf Miunske <[email protected]> wrote:
> 
> > > > Hi Massimo!
> > > Hi  Ralf, thanks for your reply.
> > > Sorry but probably there is something I can't understand.
> > Don't matter... Embedded development is usually a hassle....  :)
> [...]
> > Hope this was'nt to deep into the materia, but perhaps some 
> others like to 
> > read it O:-)
> > To all: tell me, if I write only crap at any point... ;-)
> Thanks Ralf. It was very interesting.
> I wonder it there is any hardware inside Simpad, responsible 
> for controlling suspend or it's software (bootloader?) job?
> 
> -- 
> Regards
> Michal Mozdyniewicz
> 
> 
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