OMAP35x HDMI (Video + Audio)

[LeMaBa]

Hi champs,

what are the options to implement "full" HDMI (Video and Audio
channels) in the OMAP35x on the BeagleBoard? how can we do this?

LeMaBa

[Gerald Coley]

In order to integrate the audio and HDMI into one stream, you would need to add a HDMI framer device onto the LCD interface pins and add wires manually to jumper the audio output from the TPS65950 into the device. As the McBSP signals are embeeded into the PCB layout, adding the wires will be a very tough undertaking. In short, you can't do it. You would need a new ground up design.

 

Gerald

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[Søren Steen Christensen]

Unless using McBSP1 or 3 from the expansion header instead of McBSP2 currently going to TPS65xxx J

 

Getting hold on a full (Video+Audio) HDMI chip and datasheet is however a bit more difficult – At least in small quantities and without signing NDA, etc…

  Søren

 

---

SSC Solutions ApS - Denmark - www.ssc-solutions.dk

[Gerald Coley]

Agreed!

 

Gerald

[Juha Kuikka]

McBSP1 and 3 are available on the expansion connector. With SW support audio can be driven out through them into an external HDMI framer. Getting proper audio clock rates from McBSP can be hard though unless the framer can drive the audio clock. Optionally, if MCBSP_CLKS is connected to a good audio clock source (like it is on the BB) it can be used to get the right rates.

 - Juha

--
Duck tape is like the force, it has a light side and a dark side and it holds the universe together.

[Colby Boyer]

Can you get HDMI chips without the crypto/DRM protection? Thats the main reason the chip maker is protective of the HDMI design.

-----Original Message-----
From: Gerald Coley
Sent: 08/09/2010 13:53:45
Subject: Re: [beagleboard] OMAP35x HDMI (Video + Audio)

Agreed!

Gerald

On Mon, Aug 9, 2010 at 3:38 PM, Søren Steen Christensen <
li...@ssc-solutions.dk> wrote:

> Unless using McBSP1 or 3 from the expansion header instead of McBSP2
> currently going to TPS65xxx J
>
>
>
> Getting hold on a full (Video+Audio) HDMI chip and datasheet is however a
> bit more difficult – At least in small quantities and without signing NDA,
> etc…
>
> Søren
>
>
>
> ---
>

> *SSC Solutions ApS* - Denmark - www.ssc-solutions.dk
>
>
>
> *From:* beagl...@googlegroups.com [mailto:beagl...@googlegroups.com]
> *On Behalf Of *Gerald Coley
> *Sent:* Monday, August 09, 2010 10:08 PM
> *To:* beagl...@googlegroups.com
> *Subject:* Re: [beagleboard] OMAP35x HDMI (Video + Audio)

>
>
>
> In order to integrate the audio and HDMI into one stream, you would need to
> add a HDMI framer device onto the LCD interface pins and add wires manually
> to jumper the audio output from the TPS65950 into the device. As the McBSP
> signals are embeeded into the PCB layout, adding the wires will be a very
> tough undertaking. In short, you can't do it. You would need a new ground up
> design.
>
>
>
> Gerald
>
> On Mon, Aug 9, 2010 at 2:05 PM, LeMaBa <leom...@engineer.com> wrote:
>
> Hi champs,
>
> what are the options to implement "full" HDMI (Video and Audio
> channels) in the OMAP35x on the BeagleBoard? how can we do this?
>
> LeMaBa
>
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>
>
>
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[Gerald Coley]

Not that I am aware of. There aren't that many people making those devices that will even deal with someone unless you want to talk 5 figure quantities. Plus, there is the whole NDA thing. I don't know if there is anything out there that does not have the encryption.

 

Gerald

[Michael Iversen]

Zoom OMAP34x-II Mobile Development Platform includes SiI9022 HDMI
encoder (TFBGA84 package) on baseboard schematics.

Please have a look at http://omapworld.com/zoom.html (registration
required for schematics and layout) and http://www.siliconimage.com/products/product.aspx?pid=118

No HDCP is enabled in Sil9022, but NDA will for sure still be required
to get datasheet. However, it should be possible to implement the IC
given the schematics and open source drivers without...

BR Michael

On Aug 10, 1:52 am, Gerald Coley <ger...@beagleboard.org> wrote:
> Not that I am aware of. There aren't that many people making those devices
> that will even deal with someone unless you want to talk 5 figure
> quantities. Plus, there is the whole NDA thing. I don't know if there is
> anything out there that does not have the encryption.
>
> Gerald
>

> > > On Mon, Aug 9, 2010 at 2:05 PM, LeMaBa <leoma...@engineer.com> wrote:
>
> > > Hi champs,
>
> > > what are the options to implement "full" HDMI (Video and Audio
> > > channels) in the OMAP35x on the BeagleBoard? how can we do this?
>
> > > LeMaBa
>
> > > --
> > > You received this message because you are subscribed to the Google Groups
> > > "Beagle Board" group.
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> > <beagleboard%2Bunsu...@googlegroups.com<beagleboard%252Buns...@googlegroups.com>

>
> > > .
> > > For more options, visit this group at
> > >http://groups.google.com/group/beagleboard?hl=en.
>
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>
> > > .
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[Michael Iversen]

Zoom OMAP34x-II Mobile Development Platform uses a Silicon Image
SiI9022 HDMI encoder without HDCP.

SiI9022 (TFBGA84 6x6 mm 0,5mm pitch package) is included in baseboard
shematics found at http://omapworld.com/zoom.html
Google Sil9022.c and Sil9022.h for drivers.

NDA is required for SiI9022. However, it should be possible to
implement in your design without, if you can get your hands on samples
or a reel (490 pcs)...

[Richard Watts]

Gerald Coley wrote:
> Not that I am aware of. There aren't that many people making those
> devices that will even deal with someone unless you want to talk 5
> figure quantities. Plus, there is the whole NDA thing. I don't know if
> there is anything out there that does not have the encryption.

You can buy trays from distributors - <http://www.sequoia.co.uk/> and
others will sell them. However,

* For HDMI, you need to have signed the HDMI adopters agreement
($5k - $10k/ year + $1/10c per unit royalty) and have the first
device of each type externally certified.

* For HDCP you need in addition to agree to the HDCP consortium's
rules and pay another yearly fee. I'm not sure what the certification
is for that.

You can buy HDMI encoders without HDCP (in fact, I think 9022A does
this), but not, frustratingly, HDMI decoders. The HDCP agreement
obviously prohibits you from taking HDCP content and emitting it
as pure HDMI.

You need NDAs for the chip data, but this isn't usually too much
of a problem since (a) the Linux kernel contains drivers for quite
a few of these HDMI driver chips, and (b) you're signing all sorts
of horrible agreements with the HDMI/HDCP people anyway.

9022A works nicely with a beagle's LCD output and seems (shockingly
for I2C) to obey commands sent to it without complaint. Get the
TQFP version though; you don't want to tangle with 0.5 pitch
BGA unless you have an appetite for very expensive boards.

Richard.

[Søren Steen Christensen]

Hi Michael,

> Zoom OMAP34x-II Mobile Development Platform includes SiI9022 HDMI
> encoder (TFBGA84 package) on baseboard schematics.
>
> Please have a look at http://omapworld.com/zoom.html (registration
> required for schematics and layout) and
http://www.siliconimage.com/products/product.aspx?pid=118
>
> No HDCP is enabled in Sil9022, but NDA will for sure still be required
> to get datasheet. However, it should be possible to implement the IC
> given the schematics and open source drivers without...

I totally agree, but sourcing the chip in like 100+ chips volume is
unfortunately nearly impossible (at least when I tried some time back :-)
In case somebody have a better connection to Silicon Image than I have it
might however definitely be an easy HW/SW-way forward...

I totally agree that having a full HDMI add-on card for Beagle would be
great... :-)

[Richard Watts]

S�ren Steen Christensen wrote:
> Hi Michael,
>
[sbnip]

> I totally agree that having a full HDMI add-on card for Beagle would be
> great... :-)

FWIW, we looked into this a while back; it's perfectly practical if
you're prepared to stomach the $15-$17k certification startup
costs and subsequent $5k/yr + $1/unit licencing. We weren't :-)

(though we do have some prototypes lying about if anyone is close
to us and wants to experiment)

Richard.

[Colby Boyer]

Thanks for the detailed email Richard.

-----Original Message-----
From: Richard Watts
Sent: 08/11/2010 05:58:46
Subject: Re: [beagleboard] OMAP35x HDMI (Video + Audio)

Richard.

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