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| From: | Brian Padalino |
| Subject: | Re: [Discuss-gnuradio] Free USRP FPGA Resources |
| Date: | Sun, 22 Apr 2007 10:27:47 -0400 |
On 4/22/07, Eng. Firas <address@hidden> wrote:
Dear Matt, Dear All, Is the DDC decimate by 2 half band filter built inside the FPGA ? If it is so, then how much the free available FPGA resources left after building all the present USPR circuits in it? I mean, is there a free space to modify the CIC + HBF circuit and to build a complete DDC block (CIC + CFIR + PFIR) ?
The standard USRP build has about 95% of the LE's used up, but a decent amount of memory free. If you plan on using only 1 complex RX path and 1 complex TX path - you can remove quite a bit of logic and build with a single side enabled.
Thank you in advance. Firas
Brian
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