AVR32AP7000 and DVI screens

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As it is possible to drive a VGA scren, is it possible to drive a DVI screen directly?

If so, would the circuit for an AP7000 in the NGW100 be complicated to hook up to a DVI port? And would the software require a vastly different set up to VGA output or would the LCD controller handle it in a similar fashion to the VGA output?

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This is a hardware question, so I moved it to the hardware forum :)

Hans-Christian

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Dingo_aus wrote:
As it is possible to drive a VGA scren, is it possible to drive a DVI screen directly?

If so, would the circuit for an AP7000 in the NGW100 be complicated to hook up to a DVI port? And would the software require a vastly different set up to VGA output or would the LCD controller handle it in a similar fashion to the VGA output?


The AVR32 certainly couldn't drive the screen directly. DVI consists of 2-4 TMDS serial channels each running at up to 165MHz. Very fast indeed! Then again, strictly, the AVR32 doesn't drive a VGA screen directly, it's LCDC lines are passed through a video DAC. There may be such thing as a TMDS serializer which could do the job, I'm really not sure. I have seen TMDS transmitters which require serial input, you could probably serialize the LCDC data and TMDS transmit it. Check out Silicon Image, the people who developed DVI, for more info.

In any case, the setup would kinda require that the AVR32 is somewhat ignorant, so the software changes would be minimal.

-S.

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Yes, if you use the right DVI serilizer you could hook up a DVI. The avr32 does not really care that much. At most you need a little i2c setup for the dvi chip. Already looked at it, and was planning on doing it in the future.