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Re: [Discuss-gnuradio] Logic utilization of standard USRP2 configuratio
From: |
Johnathan Corgan |
Subject: |
Re: [Discuss-gnuradio] Logic utilization of standard USRP2 configuration |
Date: |
Tue, 21 Apr 2009 09:31:44 -0700 |
On Tue, Apr 21, 2009 at 9:17 AM, Carl Ingemarsson
<address@hidden> wrote:
> I wonder how much of the FPGA on the USRP2 that is utilized.
We're using about half the logic, most of the block rams, and about
half the multipliers.
>From the synthesis report of the current trunk:
Device utilization summary:
---------------------------
Selected Device : 3s2000fg456-5
Number of Slices: 11104 out of 20480 54%
Number of Slice Flip Flops: 12657 out of 40960 30%
Number of 4 input LUTs: 20212 out of 40960 49%
Number used as logic: 18130
Number used as Shift registers: 1058
Number used as RAMs: 1024
Number of IOs: 309
Number of bonded IOBs: 301 out of 333 90%
IOB Flip Flops: 261
Number of BRAMs: 34 out of 40 85%
Number of MULT18X18s: 16 out of 40 40%
Number of GCLKs: 6 out of 8 75%
Number of DCMs: 1 out of 4 25%
> And also: Is it expected that the configuration will grow from the current
> size?
Yes.
Johnathan