Erased bootloader

Started by quba54 January 9, 2006
I probably erase flash sector with bootloader.( Philips ISP software
doesn't see my board). I thought this sector is protected.
How can I load new bootloader?


An Engineer's Guide to the LPC2100 Series

quba54 wrote:

> I probably erase flash sector with bootloader.( Philips ISP software
> doesn't see my board). I thought this sector is protected.
> How can I load new bootloader?
>

Have you tried to restart the board/chip while holding P0.14 low?

/Ake --
---
Ake Hedman (YAP - Yet Another Programmer)
eurosource, Brattbergavagen 17, 820 50 LOS, Sweden
Phone: (46) 657 413430 Cellular: (46) 73 0533 146
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Boot loader is not supposed to erase itself. Have you loaded anything
to sector 0? If yes, then try pulling P0.14 low to force ISP, and
then erasing sector 0.

If this does not work, please drop me an email -- I have seen this
happen before and like to know more.

--- In lpc2000@lpc2..., "quba54" <quba54@y...> wrote:
>
> I probably erase flash sector with bootloader.( Philips ISP software
> doesn't see my board). I thought this sector is protected.
> How can I load new bootloader?
>




--- In lpc2000@lpc2..., "jayasooriah" <jayasooriah@y...> wrote:
>
> Boot loader is not supposed to erase itself. Have you loaded
> anything to sector 0? If yes, then try pulling P0.14 low to force
> ISP, and then erasing sector 0.
>
> If this does not work, please drop me an email -- I have seen this
> happen before and like to know more.
>

Hi, Mr JayaSooriah, Yeah! Keep it up...
That's the forum culture here => Contribute idea, Helping out, free
chat type of language and avoid shooting down any other
forumer/Philips unless you have real 100% solid backing proof.
Continue in this manner and you will become our BootLoader Expert
here. (BootLoader: Something the Philips guys will never want to
talk about if it gets too "inside"....)
Good job...

> --- In lpc2000@lpc2..., "quba54" <quba54@y...> wrote:
> >
> > I probably erase flash sector with bootloader.( Philips ISP
software
> > doesn't see my board). I thought this sector is protected.
> > How can I load new bootloader?
> >
>




Unity0724, please stop being rude and unhelpful.

Philips knows it has problems with its boot loader has thus chosen to
mitigate damages by not discussing it further.

All the evidence anyone needs to show that boot loader crashes, has
hidden commands and hidden arguments to known commands is out there in
the open if only you care to look at source.

[BTW I checked with Philips before disassembly. It did not object.
It simply said it will not guarantee the part if the its boot loader
was not used, which is a very reasonable response.]

It is quite clear now (given the silence) that those from Philips who
were assuring about CRP security us through the "CRP update" messages
in this forum have no idea of what is in the boot loader.

As to "shooting down", just compare your language with my very simple
request to quba54, to help him, myself, and anyone else who is having
similar problems.

Please forgive me if I choose to ignore further posts from you. If you
have a question, ask with dignitiy willingness to listen and I shall
be only too happy to respond appropriately.

Have a good day.

Jaya

--- In lpc2000@lpc2..., "unity0724" <unity0724@y...> wrote:
>
> --- In lpc2000@lpc2..., "jayasooriah" <jayasooriah@y...> wrote:
> >
> > Boot loader is not supposed to erase itself. Have you loaded
> > anything to sector 0? If yes, then try pulling P0.14 low to force
> > ISP, and then erasing sector 0.
> >
> > If this does not work, please drop me an email -- I have seen this
> > happen before and like to know more.
> >
>
> Hi, Mr JayaSooriah, Yeah! Keep it up...
> That's the forum culture here => Contribute idea, Helping out, free
> chat type of language and avoid shooting down any other
> forumer/Philips unless you have real 100% solid backing proof.
> Continue in this manner and you will become our BootLoader Expert
> here. (BootLoader: Something the Philips guys will never want to
> talk about if it gets too "inside"....)
> Good job...
>
> > --- In lpc2000@lpc2..., "quba54" <quba54@y...> wrote:
> > >
> > > I probably erase flash sector with bootloader.( Philips ISP
> software
> > > doesn't see my board). I thought this sector is protected.
> > > How can I load new bootloader?
> > >
> >
>