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Comp.Arch.FPGA | How can I convert size requirements from Altera devices to Xilinx devices?
There are 4 messages in this thread.
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How can I convert size requirements from Altera devices to Xilinx devices? - Sam - 2010-02-01 09:59:00
I have two designs for an Altera chip that use approximately 6,000 and 24,000 logic elements. I am looking at moving to Xilinx tools, but am not sure how these numbers translate across manufacturers. I have seen Xilinx FPGA with gate counts cited, but I am not sure what those number mean. Can anyone provide some guidance in this?
Re: How can I convert size requirements from Altera devices to Xilinx devices? - Symon - 2010-02-01 10:19:00
On 2/1/2010 2:59 PM, Sam wrote: > I have two designs for an Altera chip that use approximately 6,000 and > 24,000 logic elements. I am looking at moving to Xilinx tools, but am > not sure how these numbers translate across manufacturers. I have seen > Xilinx FPGA with gate counts cited, but I am not sure what those > number mean. > > Can anyone provide some guidance in this? 1) Download tools from Xilinx's website with free 60 day license. 2) Feed your design into Xilinx tools. 3) Look at numbers. Ta da! HTH., Syms.
Re: How can I convert size requirements from Altera devices to Xilinx devices? - james - 2010-02-01 21:25:00
On Mon, 1 Feb 2010 06:59:33 -0800 (PST), Sam <k...@gmail.com> wrote: |I have two designs for an Altera chip that use approximately 6,000 and |24,000 logic elements. I am looking at moving to Xilinx tools, but am |not sure how these numbers translate across manufacturers. I have seen |Xilinx FPGA with gate counts cited, but I am not sure what those |number mean. | |Can anyone provide some guidance in this? | |============== In my opinion about the best way to compare different vendor's FPGAs is not to use stated gate count. Instead look at the features like # of LUTs # of block ram # of multipliers # of DSP blocks It is better to compare the building blocks of the FPGA rather than an estimated gate count. james
Re: How can I convert size requirements from Altera devices to Xilinx devices? - rickman - 2010-02-01 22:32:00
On Feb 1, 9:25=A0pm, james <bu...@bud.u> wrote: > On Mon, 1 Feb 2010 06:59:33 -0800 (PST), Sam <kerr....@gmail.com> > wrote: > > |I have two designs for an Altera chip that use approximately 6,000 and > |24,000 logic elements. I am looking at moving to Xilinx tools, but am > |not sure how these numbers translate across manufacturers. I have seen > |Xilinx FPGA with gate counts cited, but I am not sure what those > |number mean. > | > |Can anyone provide some guidance in this? > | > |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > In my opinion about the best way to compare different vendor's FPGAs > is not to use stated gate count. Instead look at the features like > > # of LUTs > # of block ram > # of multipliers > # of DSP blocks > > It is better to compare the building blocks of the FPGA rather than an > estimated gate count. > > james And make sure you do your own counting of features like LUTs. Xome companies like to count "imaginary" features like "Logic Cells" which don't exist in *anyone's* FPGAs. Rick