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Comp.Arch.FPGA | LVDS output pins of Altera Cyclone II

There are 2 messages in this thread.

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LVDS output pins of Altera Cyclone II - onlyspam@online.ms - 2006-11-30 17:05:00

Hi,

does anybody know how to switch of the LVDS output pins of a Cyclone 
II?

I use the "alt_lvds" megafunction but there are no inputs to this 
megafuction to enable or disable the LVDS output pins.

I thought about writing my own serializer as a workaround but I have 
no idea how this is done. But it should be possible by using the 
double data rate IOs and some shift registers.

Thanks.


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Re: LVDS output pins of Altera Cyclone II - Rob - 2006-11-30 22:32:00

Setting an output pin to LVDS is not part of the
megafunction.  You can use 
the assignment editor to accomplish what you want.

Writing your own serailizer usually takes a fairly good understanding of the 
hardware, setup/hold times, and jitter.


"tentacle" <o...@online.ms> wrote in message 
news:5a2cd$456f558e$54965988$2...@nf4.news-service.com...
> Hi,
>
> does anybody know how to switch of the LVDS output pins of a Cyclone
> II?
>
> I use the "alt_lvds" megafunction but there are no inputs to this
> megafuction to enable or disable the LVDS output pins.
>
> I thought about writing my own serializer as a workaround but I have
> no idea how this is done. But it should be possible by using the
> double data rate IOs and some shift registers.
>
> Thanks.
>
>
> --
> --------------------------------- --- -- -
> Posted with NewsLeecher v3.7 Final
> Web @ http://www.newsleecher.com/?usenet
> ------------------- ----- ---- -- -
>
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