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 flowi
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Re: SAM460 Audio Driver Released
Posted on 17-Aug-2011 17:14:29
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Joined: 23-Oct-2009
Posts: 46
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| @wawa
I guess the reason why the SAM460 is equipped with the Silicon Motion 502 chip is mainly for display purposes, but it is also able to produce the sound, handle the video decoding (MPEG-2) etc., so for whatever the main purpose of the board is (I doubt it was specifically built to run AOS4) the chip was chosen for those reasons.
Maybe Linux has already a driver for that chip, so no need to invest in additional programming there.
But just a guess. |
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wawa
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Re: SAM460 Audio Driver Released
Posted on 17-Aug-2011 18:05:45
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Elite Member
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Joined: 21-Jan-2008
Posts: 6259
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| @flowi
yeah, thanks, that figures. |
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Jupp3
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Re: SAM460 Audio Driver Released
Posted on 17-Aug-2011 19:14:40
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Joined: 22-Feb-2007
Posts: 1225
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| @flowi
Quote:
| I guess the reason why the SAM460 is equipped with the Silicon Motion 502 chip is ... handle the video decoding (MPEG-2) etc. |
Just curious, where have you seen any mention of that? 
For example this product page doesn't have any mention of that (which I find weird, if it really can do that...) |
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flowi
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Re: SAM460 Audio Driver Released
Posted on 17-Aug-2011 19:40:01
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Joined: 23-Oct-2009
Posts: 46
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| @Jupp3
Reading the spec sheet properly I think you're correct, it has only interface for MPEG-2 decoder, but doesn't do the decoding itself.
I just briefly checked this spec sheet from Silicon Motion. |
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corto
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Re: SAM460 Audio Driver Released
Posted on 17-Aug-2011 20:18:12
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Joined: 24-Apr-2004
Posts: 342
From: Grenoble (France) | | |
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| rossv : I don't own a Sam460 and there is still much work to do but what you did is a great achievement. Congrats ! I would be interested in seeing what this driver source looks like.
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xray
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Re: SAM460 Audio Driver Released
Posted on 17-Aug-2011 21:36:33
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Joined: 10-Mar-2003
Posts: 21
From: Suisse | | |
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| @Amiga4000
Hi,
currently it is necessary to ask us to have an offer personalized in dollars
Cordially
XRAY
Resp.techn.
Team RELEC |
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Daytona675x
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Re: SAM460 Audio Driver Released
Posted on 19-Aug-2011 10:28:23
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Regular Member
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Joined: 5-Jan-2011
Posts: 491
From: Germany | | |
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| Works! Now some fresh (OpenGL accelerating) display driver and the 460 becomes useful to me 
Noticed some cracks during playback though. Practically always there, for example when playing the OS4 startup sound or the AHI test pling.
Nevertheless, thanks! A huge step forward. _________________
AmigaOS 4.1 FE (sam460ex Radeon 9200 / RadeonHD), MorphOS 3.8 (PowerMac G4 733MHz Radeon 9000), AROS (x86), A1200 (060 80MHz Indivision MK2), A500, A600, CDTV
Wings Remastered Development Diary |
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Nibunnoichi
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Re: SAM460 Audio Driver Released
Posted on 19-Aug-2011 13:11:31
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Cult Member
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Joined: 18-Nov-2004
Posts: 972
From: Roma + Milano, Italia | | |
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| @Jupp3
Quote:
Jupp3 wrote:
@flowi
Quote:
| I guess the reason why the SAM460 is equipped with the Silicon Motion 502 chip is ... handle the video decoding (MPEG-2) etc. |
Just curious, where have you seen any mention of that?
For example this product page doesn't have any mention of that (which I find weird, if it really can do that...) |
This card was supposed to be based on the same chip i believe, and it talks about mpeg decoding, tv etc.
_________________
Proud Amigan since 1987
Owner of various Commodore and a SAM440ep\OS4.1FE
See them on http://retro.furinkan.org/ |
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NutsAboutAmiga
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Re: SAM460 Audio Driver Released
Posted on 19-Aug-2011 13:45:10
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Elite Member
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Joined: 9-Jun-2004
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Framiga
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Re: SAM460 Audio Driver Released
Posted on 19-Aug-2011 13:49:09
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Elite Member
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Joined: 5-Jul-2003
Posts: 2213
From: Unknown | | |
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| @Nibunnoichi
nibunnoichi wrote:
@Jupp3
Quote:
This card was supposed to be based on the same chip i believe, and it talks about mpeg decoding, tv etc
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"A ZV port is also included as an interface for external circuitry for MPEG decoding or TV input."
Last edited by Framiga on 19-Aug-2011 at 01:51 PM.
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