> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On
Behalf
> Of Apptech
> Sent: 24 September 2008 13:36
> To: Microcontroller discussion list - Public.
> Subject: Re: [pic:] I2C EEPROM write speed ?
> 
> >> ... to write 32768 bytes It takes 4.5 minutes.
> 
> > That comes out to 8.2mS per byte.  That is plausible if you are
doing
> > individual byte writes, but of course you should be doing page mode
> > writes.
> > That will make things much faster.
> 
> >> I am going to try FRAM like Bob suggested.
> 
> > Or learn to use the EEPROM you have properly.
> 
> Surely that's cutting the garment to suit the cloth.
> If someone wants to do individual byte writes then being forced to do
page
> writes to suit a hardware shortcoming *may* justify the use of a
different
> technology. This obviously depends on the application and resource
> availability or perhaps how much the user is happy to have the
hardware
> lead
> him by the nose, BUT "using something properly" where the item is of
low
> capability is not necessarily the same as 'doing the job well'. But,
you
> know that.

Agreed.  The mitigating (but circumstantial!) evidence in this case is
that the OP has complained that it takes 4.5 minutes to fill a 32kbyte
device.  If you have 32kbytes of data to write as quickly as possible, I
struggle to think of a good reason not to use the page buffer.

Regards

Mike

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