Lpc2000

I definitely got problems when writing 64 or 32 byte chunks on an 
LPC2129. After some experimentation I found I could only get reliable 
behaviour with 512 bytes (didn't test bigger).

Typically, I'd see a few wrong bits out of 64kB. This might have been 
fixed in a more recent bootloader.





--- In lpc2000@yahoogroups.com, "johnthomasedwardtimm" <area51@a...> 
wrote:
> 
> Robert,
> 
> Thanks for the reply.  Can I write 32 byte (256-bit) chunks 16 times 
> to fill a 4096-bit section?  I believe in a previous email you 
> mentioned that 256-bit is the maximum size of a chunk you can write 
> to a 4096-bit row that has data in it already.
> 
> Thanks,
> 
> JT
> 
> --- In lpc2000@yahoogroups.com, "philips_apps" <philips_apps@y...> 
> wrote:
> > 
> > John,
> > 
> > the answer is simple, unreliable data :-( A new device will 
> probably 
> > not show any proplems but over time data retention will get worse 
> and 
> > you could simply loose data. Could work for quite a while but 
> > absolutely not recommended (and not specified). 
> > 
> > Robert
> > 
> > --- In lpc2000@yahoogroups.com, "johnthomasedwardtimm" 
> <area51@a...> 
> > wrote:
> > > 
> > > I understand the various limitations concering the internal 
> flash 
> > > memory.  Concering the 16 writes per 4096 bit block limitation, 
> I am 
> > > doing 32 128-bit writes without problems.  What is the potential 
> > > danger of doing this?
> > > 
> > > Thanks,
> > > 
> > > JT