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IAP encrypted flash re-programming

IAP encrypted flash re-programming

2005-05-01 by bobtransformer

Anybody here ever seen (or done) an IAP flash programming app that
re-loads flash with updated code that the end user downloads from
their PC ?
  I would think one could do this without too much trouble on
an LPC2XXX and might even fit into one sector.
Un-encryption of the downloaded code would be a benefit as well so
code copying wouldn't be so much of a problem.

Maybe there's even some good starting point examples around.

Thanks,
Bob

Re: [lpc2000] IAP encrypted flash re-programming

2005-05-01 by Charles Manning

I have done something like this, but unfortunately can't release it.

This is a pretty straight formward thing to do.
* Establish comms with PC via RS232.
* Accept command to erase
* Accept chunks of data to program. Write with IAP.

It should easily fit within a single sector.
Show quoted textHide quoted text
On Sunday 01 May 2005 14:33, you wrote:
> Anybody here ever seen (or done) an IAP flash programming app that
> re-loads flash with updated code that the end user downloads from
> their PC ?
>   I would think one could do this without too much trouble on
> an LPC2XXX and might even fit into one sector.
> Un-encryption of the downloaded code would be a benefit as well so
> code copying wouldn't be so much of a problem.
>
> Maybe there's even some good starting point examples around.
>
> Thanks,
> Bob
>
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>

Re: [lpc2000] IAP encrypted flash re-programming

2005-05-01 by Onestone

To the OP.

Bob check out the MSP430 group on yahoo, there was a long discussion of 
robust IAP programming methods.

Al

Charles Manning wrote:
Show quoted textHide quoted text
> I have done something like this, but unfortunately can't release it.
>
> This is a pretty straight formward thing to do.
> * Establish comms with PC via RS232.
> * Accept command to erase
> * Accept chunks of data to program. Write with IAP.
>
> It should easily fit within a single sector.
>
> On Sunday 01 May 2005 14:33, you wrote:
> > Anybody here ever seen (or done) an IAP flash programming app that
> > re-loads flash with updated code that the end user downloads from
> > their PC ?
> >   I would think one could do this without too much trouble on
> > an LPC2XXX and might even fit into one sector.
> > Un-encryption of the downloaded code would be a benefit as well so
> > code copying wouldn't be so much of a problem.
> >
> > Maybe there's even some good starting point examples around.
> >
> > Thanks,
> > Bob
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
>
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