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AC97-Controller on Avalon bus?
by Unknown on Mar 15, 2005 |
Not available! | ||
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Hello,
I put the AC'97 Controller on the Avalon bus and it is working fine (thanks
Rudi!!!)... most of the time ;(
I record via microphone, store the data in SDRAM and play it via line out.
Most of the time it is working, but sometimes it is played very much too
fast, and I have no idea why? The same data can came out normally if I give
it another try....
I have only one interrupt (from the AC'97 Controller) in the system, don't
use the AC'97 Controllers DMA. In the interrupt service function I
read/write the data to/from the AC'97 controller to/from SDRAM. That's all.
Anybody made the same strange experiences or has any idea where to look for
the bug?
Thanks
Otto
P.S. I don't think that the bug is in the AC'97 Controller, I think it's in
my adaptation, but where?
--
SMS bei wichtigen e-mails und Ihre Gedanken sind frei ...
Alle Infos zur SMS-Benachrichtigung: http://www.gmx.net/de/go/sms
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AC97-Controller on Avalon bus?
by Unknown on Mar 21, 2005 |
Not available! | ||
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I'm trying to put a 68k core in the avalon bus? How I can do that?
On Tue, 15 Mar 2005 12:06:59 +0100 (MET), otto otto damc4 at gmx.de> wrote:
Hello,
I put the AC'97 Controller on the Avalon bus and it is working fine (thanks
Rudi!!!)... most of the time ;(
I record via microphone, store the data in SDRAM and play it via line out.
Most of the time it is working, but sometimes it is played very much too
fast, and I have no idea why? The same data can came out normally if I give
it another try....
I have only one interrupt (from the AC'97 Controller) in the system, don't
use the AC'97 Controllers DMA. In the interrupt service function I
read/write the data to/from the AC'97 controller to/from SDRAM. That's all.
Anybody made the same strange experiences or has any idea where to look for
the bug?
Thanks
Otto
P.S. I don't think that the bug is in the AC'97 Controller, I think it's in
my adaptation, but where?
--
SMS bei wichtigen e-mails und Ihre Gedanken sind frei ...
Alle Infos zur SMS-Benachrichtigung: http://www.gmx.net/de/go/sms
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http://www.opencores.org/mailman/listinfo/cores
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AC97-Controller on Avalon bus?
by dghadia on Oct 26, 2007 |
dghadia
Posts: 1 Joined: Oct 3, 2008 Last seen: Dec 23, 2008 |
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Hi All,
I am Divyesh i have also tested with avalone and i am faced some of
problem on real harware i have used LM4550 Ac97 Codec controller.
if you have test on real hardware ?
if you had completed then please give me some of idea how to interface
SDATA_ IN line (line_in to line_out) i have configure all channel but not
yet sdata_in so please let me about this as soon as possibale
regards
Divyesh
----- Original Message -----
From: otto ottodamc4 at g...>
To:
Date: Tue Mar 15 12:06:59 CET 2005
Subject: [oc] AC97-Controller on Avalon bus?
Hello,
I put the AC'97 Controller on the Avalon bus and it is working fine (thanks Rudi!!!)... most of the time ;( I record via microphone, store the data in SDRAM and play it via line out. Most of the time it is working, but sometimes it is played very much too fast, and I have no idea why? The same data can came out normally if I give it another try.... I have only one interrupt (from the AC'97 Controller) in the system, don't use the AC'97 Controllers DMA. In the interrupt service function I read/write the data to/from the AC'97 controller to/from SDRAM. That's all. Anybody made the same strange experiences or has any idea where to
look for
the bug?
Thanks
Otto
P.S. I don't think that the bug is in the AC'97 Controller, I think
it's in
my adaptation, but where?
--
SMS bei wichtigen e-mails und Ihre Gedanken sind frei ...
Alle Infos zur SMS-Benachrichtigung: http://www.gmx.net/de/go/sms
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