If you are wanting to use the ports in anything other than their default configuration you need to initialise the relevant port registers (direction, function etc). Note that the sample programs usually have calls to brdInit() which setup the port registers for the core modules corresponding prototype boards. If using your own hardware you may need to make your own "brdInit" function.
Regards,
Nathan
-----Original Message-----
From: Friends
[mailto:s...@yahoo.com]
Sent: Monday, 18
October 2004 2:29
PM
To: r...@yahoogroups.com
Subject: Re: [rabbit-semi] Initial
Read or Write
Port?
Dear Kos,
I have some prob as you. Played BitRdPort,
BitWrPort
but never get correct result.
Regards,
Steven
--- causeofexisting <c...@yahoo.com>
wrote:
>
> Dear Folks,
>
> It's my turn to pay back for the turtle,
as
my
> RCM2200 were running all
> day long. I've got some questions to ask,
if
you
> would please to answer,
> I would really appreciate that. Here are
the
>
questions.
>
> 1. I've been working on BitRdPort,
BitWrPort,
WrPort
> and RdPort
> functions for several days, but they
didn't
> work.(Note that, I've used an
> oscilloscope inspected them though) Do I have
to
> initial the Port before
> using them as Input or
Output
Port? Please give
me
> some examples.
>
> 2. I am trying to use Port A,B,C,D or
E...right now
> I don't know which
> one I'll choose to turn on some LEDs and
to
Get an
> input from some IR
> sensors. Which Port should I use for the
Output and
> the Input?
>
> However thank you for your reading. Enjoy
your
> weekend.
> Kos
>
>
>
>
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