From: Daniel Kahlin (tlr_at_stacken.kth.se)
Date: 2006-03-04 17:21:12
On Sat, 4 Mar 2006, Wouter Coene wrote:
>> Some FPGAs also have the ability to directly connect to configuration ROMs
>> (special ROM that increments by itself).
>
> Xilinx has its Spartan-3E series that's supposedly capable of this, but I
> haven't seen it being sold at the usual places yet (hope it's available
> soon; looks really nice). Sure, other FPGA-makers may have devices capable
> of this, but that doesn't mean it'd be competetive with a more common device
> or even affordable.
Most Xilinx FPGA's have this feature actually. XC4000, Virtex, Virtex-E,
Virtex-II, Virtex-IIPro, Virtex-4, etc... The flash-chips are a bit
expensive though.
>> Many of the vendor programs include schematic entry, which may be easier if
>> you are having trouble with learning the languages. I have heard in the
>> past that this is buggy, but that was years ago and this may be much more
>> stable by now.
Schematic entry also forces you implement the design at a much lower level
than usually necessary. If you are to do a really big design it will
just hold you back.
/Daniel
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