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[Discuss-gnuradio] FPGA firmware
From: |
Dominik Auras |
Subject: |
[Discuss-gnuradio] FPGA firmware |
Date: |
Tue, 28 Aug 2007 23:02:25 +0200 |
Hi!
Am I right to state that the fpga firmware is configured as followed:
Tx chain (0 to 2 possible)
- NCO fine+coarse on Analog Devices Chip
- low-pass 4x interpolation on AD-Chip
- CIC interpolation filters, separate for I- and Q-Data
Especially:
Cordic turned off, internal DUC (duc.v) turned off?
And RX Chain (0 to 4 possible)
- Cordic for downconversion
- CIC decimator per I- and Q-Stream
- Halfbandfilter, after CIC, per I/Q-Stream
Also:
DDC not used? (I mean, ddc.v)
Low-pass decimation filter on AD-Chip disabled.
I wonder if http://gnuradio.org/trac/wiki/UsrpRfxDiagrams is still correct.
Greetings
Dominik
- [Discuss-gnuradio] FPGA firmware,
Dominik Auras <=