can someone recommend a board?

Hi all, After some hardware problems with our protoype I have been advised to use a board. But I cannot find one with all the features.

1) VGA in and out ports 2) SDR SDRAM. I have looked at digilentinc and xess but these people dont have any that fits all requirements. I have the XUP V2P board with the video capture card and 256MB DDR SDRAM. How difficult will it be for me to use the DDR SDRAM. Can I try to use the DDR SDRAM as an SDR SDRAM? Any suggestions are appreciated. Thanks Subhasri.K
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Subhasri krishnan
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Subhasri krishnan schrieb:

1 SDR and DDR memories require different controller ip-cores 2 there is no FPGA board with VGA input, its quite complicated, there are 3 companies producing VGA digitizer, 2 of them dont sell in less 30,000 pcs/year customers. So the only one chip available is averlogic AL875 that requires extra PLL to work. 3 VGA out is simple

Antti

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Antti

Have a look at the ADV7202 that we support as an add-on for our boards. I think that can be used to do the VGA input digitising and the opposite on the way out.

I think we can do something on the SDR too but I will have to check release dates for that one.

John Adair Enterpo> Hi all,

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John Adair

John Adair schrieb:

John,

ADV7202 supports NTSC/PAL/SECAM input, not VGA input, there are very chips that do VGA input they are moslty used in LCD monitors

Antti

Reply to
Antti

But you can digitise it.

Antti wrote:

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John Adair

John Adair schrieb:

NOPS, ASFAIK you cant use ADV7202 to digitize VGA input signals I have studied the subject.

the only obtainable chip that can digitize VGA inputs is AL875 from averlogic, and it requires external genlock chip, the datasheet says it has internal PLL but that doesnt work actually

Antti

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Antti

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Subhasri krishnan

Subhasri krishnan schrieb:

surprise surprise - DVI input is simpler than VGA input!

there are some boards with DVI input available but not very cheap Hitech tech global has some listed for sure

Antti

Reply to
Antti

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