> >The one thing that pushed me over the top was adding CRC
> >checking for my 1 wire temperature sensors -  needed it
> >because I'm getting the occasional erroneous result.
> >This adds about 300 program words.
> 
> How often does this code run? Could you set a compiler switch to
> optimise for size (but it may run a bit slower) for this section?

Executes every 750ms (DS18B22 temp sensor in 12 bit mode). But I've got that 
section sorted now thanks. I took out the table driven CRC routine (256 words were 
used by the table) and used a full CRC calculator routine... more machine cycles 
but much less code space (approx 34 words now).

-- 
Brent Brown, Electronic Design Solutions
16 English Street, St Andrews,
Hamilton 3200, New Zealand
Ph: +64 7 849 0069
Fax: +64 7 849 0071
Cell: 027 433 4069
eMail:  brent.brown@clear.net.nz


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