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From: Benny Sjostrand <gorm@cucumelo.org>
To: Peter Heatwole <peter599@gotnet.net>
Cc: Weijia Yang <gte733z@prism.gatech.edu>, alsa-devel@lists.sourceforge.net
Subject: Re: cs46xx experimental DSP drivers
Date: Wed, 25 Sep 2002 07:40:56 +0200	[thread overview]
Message-ID: <3D914C68.7010401@cucumelo.org> (raw)
In-Reply-To: 20020925020343.GC4779@porky

>    I suppose so. I just leave an MP3 playing in XMMS, and restart it 
> after
> making a change (though this isn't required for all changes; I'm just
> cautious).
>    I _think_ you modify each pin using the "EGPIO On/Off" to turn each 
> pin
> on and off, and select the different pins using "EGPIO select".
>    When I have more time I will try to learn more about this, and may be
> able to help more.
>
And "EGPIO In/Out" controls to use pin as input or output,
"EGPIO CMOS/Open drain", control if the pin use active CMOS
levels, or open drain. If think "Open drain" is like open collector, the
pin is floating when it's active, it needs a pull-up resistor or 
something, well,
just copied the text from the datasheet.

Playing with the EGPIO is very experimental and the consequences
can be _any_, but hope that you already knows that -;)

/Benny




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  reply	other threads:[~2002-09-25  5:40 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-23 20:53 cs46xx experimental DSP drivers Weijia Yang
2002-09-24 18:03 ` Benny Sjostrand
2002-09-24 18:56   ` Weijia Yang
2002-09-24 21:16     ` Benny Sjostrand
2002-09-25  0:10       ` Weijia Yang
2002-09-25  1:00         ` Peter Heatwole
2002-09-25  1:45           ` Weijia Yang
2002-09-25  2:03             ` Peter Heatwole
2002-09-25  5:40               ` Benny Sjostrand [this message]
2002-09-25  0:33       ` Peter Heatwole
2002-09-25  1:08       ` Peter Heatwole
2002-09-25  6:41         ` Peter Heatwole

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