Em 22/2/2010 06:42, Alan B. Pearce escreveu:
>> Why are you using this odd crystal.
>> Why not a 4MHz version, makes calculation easier.
>>     =

> The crystal he is using is probably cheaper than a 4MHz one because it is=
 a =

> TV colour burst frequency for US TV sets. =

>   =


Beware! I once used to use crystals with this frequency in my 8032
boards, and sometimes when I powered my boards near TV sets, the TV
color went away.

Hopefully, today the MCUs use much less power and the OP's boards may
radiate much less EMI/RFI interference than mine. Just to illustrate,
the 8032 (plus EPROM) consumed up to 200mA just to run code!!!


Regards,

Isaac

__________________________________________________
Fa=E7a liga=E7=F5es para outros computadores com o novo Yahoo! Messenger =

http://br.beta.messenger.yahoo.com/ =


-- =

http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist