> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of cdb
> Sent: Sunday, November 03, 2002 6:31 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: 18F series program coding question APOLOGY
>
> I'm a little confused, according to a Microchip document, when
> writing to a Port they advise using the LAT instruction, I assume
> this gets around the RWM problem, however the example code offered by
> Microchip and from others floating around don't use it.

Microchip did not take special care to craft examples SPECIFICALLY for
the 18 series, they just cloned the same old examples, there are SEVERAL
mistakes in their 18 series code... beware!
>
> I realise that it doesn't have to be used, but if its there and does
> get around the RWM problem, why aren't people taking advantage of it?

I can not speak for other people, but I have been "burned" enough times
by errors in Read Modify Write (RMW) that I globally replaced all PORT
writes
to LAT(s) in my PIC18C452 code.  For me it's not a case of advantage but
necessity!
>
> Colin
> --
> cdb, cdb@barnard.name on 01/11/2002
>
>
>
> --
> cdb, bodgy1@optusnet.com.au on 03/11/2002
>
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  *
  |  __O    Thomas C. Sefranek   WA1RHP@ARRL.NET
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