Lpc2000

Hi,

Due to LPC user manual I can write to flash in resolution of 512 bytes 
and more (That's mean not less than sector).

I'm looking for way to change single bit (from 1 to 0), or at least 
one byte.

Any idea welcomed.

Thanks.

You could mask out bits you don't want to change with 0xff, but that only 
works up to the CRC granularity. IIRC every 16 byte are protected by a CRC 
value, and thus can't be written more than once, as the CRC would have to be 
re-written.

Regards,

Dominic

On Tuesday 02 May 2006 08:28, vlads4377 wrote:
> Hi,
>
> Due to LPC user manual I can write to flash in resolution of 512 bytes
> and more (That's mean not less than sector).
>
> I'm looking for way to change single bit (from 1 to 0), or at least
> one byte.
>
> Any idea welcomed.
>
> Thanks.

Thank you !!!

does it mean that I can re-write sector and to put the bytes that I 
don't want to change as 0xff.

btw, I want to re-write it only once.

Thanks,
Vlad

--- In lpc2000@yahoogroups.com, Dominic Rath <Dominic.Rath@...> 
wrote:
>
> You could mask out bits you don't want to change with 0xff, but 
that only 
> works up to the CRC granularity. IIRC every 16 byte are protected 
by a CRC 
> value, and thus can't be written more than once, as the CRC would 
have to be 
> re-written.
> 
> Regards,
> 
> Dominic
> 
> On Tuesday 02 May 2006 08:28, vlads4377 wrote:
> > Hi,
> >
> > Due to LPC user manual I can write to flash in resolution of 512 
bytes
> > and more (That's mean not less than sector).
> >
> > I'm looking for way to change single bit (from 1 to 0), or at 
least

> > one byte.
> >
> > Any idea welcomed.
> >
> > Thanks.
>