Forum: GNU Radio Standalone usrp2 - using SD card

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093bd7d7f8531d3ee5cf020d96a2177b?d=identicon&s=25 Hyuntack Lim (hyuntack)
on 2009-01-14 03:36
Hi, all.

I want to configure a stand-alone USRP2 transmitter (without using PC,
with SD card).
So, first, I used the "tx_standalone.c" file at usrp2/firmware/apps.

Here are my questions:

1. Is using the "tx_standalone.c" to configure a stand-alone usrp2 TX
right way?

2. Now, does "tx_standalone.c" work?

3. IF USRP2 works with a "unmodifed" tx_standalone.c, what effects does
USRP2 have? In example, xxMHz tone generation, etc.,


Thanks.

Lim.
745d8202ef5a58c1058d0e5395a78f9c?d=identicon&s=25 Eric Blossom (Guest)
on 2009-01-14 05:30
(Received via mailing list)
On Wed, Jan 14, 2009 at 03:36:45AM +0100, Hyuntack Lim wrote:
>
> 2. Now, does "tx_standalone.c" work?
>
> 3. IF USRP2 works with a "unmodifed" tx_standalone.c, what effects does
> USRP2 have? In example, xxMHz tone generation, etc.,
>
>
> Thanks.
>
> Lim.

tx_standalone was early test code.  I don't know if it works anymore.
I doubt it, since it's not getting built in the Makefile.am.
When it did work, it sent a constant value into the TX DSP pipeline.

Eric
3596cfe1d579c65b9babd35e8787977c?d=identicon&s=25 Matt Ettus (Guest)
on 2009-01-14 06:23
(Received via mailing list)
Hyuntack Lim wrote:
>
> 2. Now, does "tx_standalone.c" work?
>
> 3. IF USRP2 works with a "unmodifed" tx_standalone.c, what effects does
> USRP2 have? In example, xxMHz tone generation, etc.,
>

tx_standalone does not do what you think it does.  We used it for
testing purposes.  If you really want to make a complete standalone
transmitter you will likely need to modify the FPGA as well.

Matt
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