Lpc2000

Brendan,

The Errata sheet for 2292 (please read the full text in the original document):

"Due to a timing problem in the interface between the Flash block and the 
digital logic ... in up to 10% of the devices the Flash memory interface, 
at some point during an IAP programming or erase operation, may never 
return from the IAP call"

I have looked at the code before and after boot loader update to address 
this problem. I formed my opinion on the significance of this mode of 
failure after considering the update, and based on looking at parts that 
failed.

Perhaps you should do something similar before you refute my observations 
with substance.

Kind regards,

Jaya

PS:  If you have something to say, I ask that say it here rather than 
advocate or solicit by way of private emails.  Thank you.


>Message: 6
>    Date: Wed, 22 Feb 2006 14:30:50 -0000
>    From: "brendanmurphy37" <brendan.murphy@...>
>Subject: Re: trashed 2148 bootloader
>
>I think you're wasting your time here (as I've been). I'd suggest
>making no further contributions to this thread (I certainly won't be
>making any). From what I've seen it's the same as the CRP thread: vague
>suggestions of how there might be a problem somewhere; no specific
>failure mode that's actually been observed described; criticism of a
>design by someone not familiar with all of the requirements that led to
>it (as noone outside Philips can have); etc. etc.
>
>As ever, if there is some failure mode or problem that's been observed
>in practice, then let's hear about it. If not, then I think it's better
>to keep our opinions of the parts design to ourselves: it just
>generates heat rather than light.
>
>Brendan

Send instant messages to your online friends http://au.messenger.yahoo.com

> 
> I have looked at the code before and after boot loader update to 
address 
> this problem. I formed my opinion on the significance of this mode 
of 
> failure after considering the update, and based on looking at 
parts that 
> failed.
> 
> Perhaps you should do something similar before you refute my 
observations 
> with substance.
> 

Jaya,

Can you indicate how this IAP problem effects the boot loader? 

I'm not refuting what you say: all I'm asking for is some evidence 
to your claim "the boot loader is broken".

In very simple terms, can you describe a set of actions that shows 
that the boot loader is broken (i.e. doesn't function as expected)? 
That is, have you observed the boot loader fail, and leave a part in 
an unrecoverable state? If so, what actions led to this happenening?

All I've heard to date is a lot of noise and opinion on things that 
may or may not be relevant to the original claim. As I've pointed 
out, this is only generating heat rather than light. Can you shine 
some light, please?

Thanks!

Brendan