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[Discuss-gnuradio] any suggestions?
From: |
Ravi Palaniappan |
Subject: |
[Discuss-gnuradio] any suggestions? |
Date: |
Mon, 06 Jan 2003 16:51:26 -0500 |
the below message was from Eric some months ago.I have purchased the 4937
eval board and the PCI-DAS 4020.If anybody has a ciruit diagram on how to
use the eval board for both the devices to do fm-demod, i would appreciate
it.
thanks again
-Ravi
"The existing eval board requires +5, -5 and external inputs for the RF
and IF AGC controls (typically 1 to 4 volts). I'd like to put a small
switcher on board the new eval board to handle the power, a dual trim
dac for the AGC controls that we can drive using the I2C bus that is
bit banged over the parallel port. Also, I'd pick a different choice
of pins on the parallel port, because as is, it takes a bit of hair to
control the board from linux. Reassigning some of the pins would make
this much easier."
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