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peterjohn
Adventurer
Adventurer
487 Views
Registered: ‎10-18-2019

FPGA logic estimator to select device

Hi, 

I am wondering if there exist a logic resource estimator for FPGA fabric that can give a quick estimate about how much LUT, DSP and BRAM resources are needed to implement the design. 

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3 Replies
dgisselq
Scholar
Scholar
479 Views
Registered: ‎05-21-2015

@peterjohn ,

I use Yosys for this purpose all the time.  For example,

yosys -p 'read -sv file1.sv file2.sv top.sv ; synth_xilinx -flatten -top top; stat'

Dan

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peterjohn
Adventurer
Adventurer
440 Views
Registered: ‎10-18-2019

Is there any spreadsheet based solution to estimate the required logic resources to select the device like XPE which we have in case of power estimation for ZYNQ ?

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u4223374
Advisor
Advisor
374 Views
Registered: ‎04-26-2015

@peterjohn Not really. If you exclusively use off-the-shelf IP then most of the cores include resource estimates, but as soon as you start developing your own then all bets are off.

 

If you've already developed your own, you can try building that for a variety of chips and see if it fits.

 

Alternatively, a lot of Xilinx chips are pin-compatible which allows easy upgrades. If you design your PCB for the XCKU3P in the D900 package, then if you need more resources you can use an XCKU5P or even an XCKU11P instead.

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