SVGA Controller on FPGA

[Matti Dun]

Hi,
I have seen a demo of LAVA 10 (SVGA Controller based on FPGA) on
youtube and I was wondering if there are some similar solutions like
this? I've read about generating VGA but first time about SVGA. Any
info about how fast processor I need to use that module?
Thanks,
Matti

 

[backhus]

On 4 Nov., 17:08, Matti Dun <matti....@gmail.com> wrote:

Hi,
I have seen a demo of LAVA 10 (SVGA Controller based on FPGA) on
youtube and I was wondering if there are some similar solutions like
this? I've read about generating VGA but first time about SVGA. Any
info about how fast processor I need to use that module?
Thanks,
Matti

Hi Matti,
SVGA has a higher pixel count than VGA, but with modern FPGAs that can
work with DDR RAMs at above 100MHZ this is no problem anymore.

There are reference designs available that read in DVI-Video
(1280x1024@60Hz and larger) do some video processing and output the
results on a DVI Output.
This can be done with an ordinary S3E (and external DVI-(de)serializer
chips).
For SVGA you need a fast Video-DAC that can handle the up to 100MSPS
Data rates.
No sweat for the FPGA.

When you say processor, are you refering to the CPU of some embedded
system? That doesn't need to be fast.
Only the video part (namely some counters, sync logic and the memory
controller) need to work at or above pixel clock frequencies.

Have a nice synthesis
Eilert

 

[Matti Dun]

Hi Eilert,
Yes, it seems that all logic you mentioned (sync logic and the
memorycontroller) is already in that module so I can use any cortex
and it will be sufficient.
Thanks,
Matti