Can't locate gr-uhd component

GNU Radio
1

Hi,
I switch to the GNU Radio next branch, checkout the files, and
find that the gr-uhd component is not present.

Where is it located?

Best regards,

Elvis D.

2

Hi Manuel,

On Jul 16, 2010, at 4:30 PM, Manuel F. wrote:

gr-uhd is located directly in the root (see also
http://gnuradio.org/cgit/gnuradio.git/tree/gr-uhd?h=next)

Thanks for pointing that out, I realized that I forgot to switch to the
next branch on the Fedora VM. I was working concurrently on the Mac
environment and the Fedora one, and forgot to switch to the next branch.

I can see gr-uhd now, and will try to build it.

I have a problem with getting the UHD to detect the USRP2 though. I set
the static IP address to 192.168.10.1 for the eth2 interface, disabled
firewall, etc, but I’m not able to detect the USRP2 as described here:

http://old.nabble.com/Can't-connect-to-USRP2-using-UHD-driver-td29182873.html

Best regards,

Elvis D.

3

Hi,
I finished building the next branch, and gr-uhd is present, and
I can even see it in grc. There’s an entry for UHD Simple Source.

Now, which firmware or FPGA image should I use, and what is the
difference between the two?

u2_rev3_uhd_20100706.bin (842.4 KB) Josh B., 07/07/2010 01:11 am

txrx_uhd_20100706.bin (15.5 KB) Josh B., 07/07/2010 01:11 am

Till now I’ve been using the txrx_uhd firmware image.

Best regards,

Elvis

4

On Fri, Jul 16, 2010 at 14:56, Elvis D. [email protected]
wrote:

Hi,
     I finished building the next branch, and gr-uhd is present, and I
can even see it in grc. There’s an entry for UHD Simple Source.
Now, which firmware or FPGA image should I use, and what is the difference
between the two?

u2_rev3_uhd_20100706.bin (842.4 KB) Josh B., 07/07/2010 01:11 am

txrx_uhd_20100706.bin (15.5 KB) Josh B., 07/07/2010 01:11 am
The first one is the FPGA image, the second is the firmware for the
aeMB.

Till now I’ve been using the txrx_uhd firmware image.
You should be using a matching combination.

Best regards,
Elvis
Manuel

5

Hi Manuel,
Thanks for the reply.

I tried burning the matched FPGA and firmware images onto the SD card,
but the LED lights don’t blink any more.

Here are the command fragments that I used to write the two images, in
succession onto the SD card

Write the new FPGA image to the SD card:

$ cd uhd/host/utils
$ sudo ./usrp2_card_burner.py --dev=/dev/sdb
–fpga=/home/elvis/Downloads/usrp2-image/u2_rev3_uhd_20100706.bin

Write the new firmware image to the SD card:

$ sudo ./usrp2_card_burner.py --dev=/dev/sdb
–fw=/home/elvis/Downloads/usrp2-image/txrx_uhd_20100706.bin

Best regards,

Elvis

6

Hi,

On Jul 16, 2010, at 5:33 PM, Elvis D. wrote:

I tried burning the matched FPGA and firmware images onto the SD card, but the LED lights don’t blink any more.

When I checked the download size, the FPGA firmware wasn’t completely
downloaded, so the image was corrupted, which is why the LEDs didn’t
work.

Reflashing the card with the command fragments that I posted earlier
worked, the second time around.

Best regards,

Elvis