Re: [avrdude-dev] [RFC] stk500: skip empty pages

[E . Weddington]

> Hi Eric,
> 
<snip> 
> The only issue that I see (aside from '{'s on a line by 
themselves for
> 'if' and 'for' blocks), is that this optimization should 
_only_ be
> applied to the FLASH.  EEPROM memory supports rewriting 
and we should
> honor whatever data is given to us for that.  FLASH, as I 
know you
> know, is special and writing 0xff is a no-op, but not so 
for EEPROM.
> 
> One of the reasons I had not committed an optimization 
like this is
> that I hadn't yet thought of a good way to know whether 
we are working
> with FLASH or EEPROM from down in the lower level 
routines.
> 
> But I'm all for it - assuming we can differentiate 
between those.
> 

See attached.

For the stk500, it can be differentiated, though not the 
most efficient way for sure. But it's fairly moot with PC 
speeds.

I haven't checked in the general case though (for avr.c as 
Ted mentioned).

Eric

skip-empty-page.patch
Description: Text document