Re: HDMI Video/Audio Card

[Steve <srkh28@gmail.com>]

On Jan 17, 1:08 pm, Mark McDougall <msmcd...@no.spam.iinet> wrote:
> On 18/01/2012 12:51 AM, Steve wrote:
>
> >   Or is the TFP410 able to convert to a standard
> >> frame format?
>
> > Not that im aware of.
>
> No, you need a frame buffer to do that. The TFP410 simply takes a parallel
> digital RGB signal and multiplexes it onto the HDMI bus; data and sync
> signals included.
>
> FWIW the project I'm working on atm (@work) uses a TFP410. It's a
> proprietary video mixer card with two (2) FPGAs and VGA/DVI output. Ideal
> for mucking about with FPGA emulations of old micros and games... we
> actually convinced the client to add 'development' build options so we could
> power them in stand-alone mode (didn't take much convincing). I kid you not
> - we tested the video output during bring-up by porting Space Invaders to it! :)
>
> Anyway, my point was, I've had some experience with it. We have it hooked up
> with I2C enabled, driven by the FPGA. But to be honest, with that chip
> there's not much you need to configure - it's a set-and-forget type deal...
>
> Regards,
>
> --
> |              Mark McDougall                | "Electrical Engineers do it
> |  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"

Hi Mark,

Thats great info. Thats exactly why I chose it. I simply wanted to
interpret the existing memory map into a HDMI framed data stream. I
did make available dual edge triggering so as only 12 of the FPGA's IO
can be used for transferring data to the device and the remaining 12
FPGA IO's can still be used on carte blance's IDE connector. The last
chip I used for HDMI was an analogix anx9804 - very nice device -
produced both display port and HDMI/DVI, but way too fancy for a
simple Apple II HDMI video card.

thanks

Steve