Re: [Discuss-gnuradio] USRP limitations

2010-02-13 Thread Matt Ettus
On 02/10/2010 02:52 PM, Justin Kelly wrote: I've seen conflicting specifications for the receive bandwidth on the USRP, what is the absolute widest chunk of spectrum you can receive with the BasicRX? If you are using 16 bit complex samples, the USRP1 can send 8 MHz of RF bandwidth to the host

Re: [Discuss-gnuradio] Rebuilding the USRP2 Firmware in ISE 11.4

2010-02-13 Thread Matt Ettus
On 02/12/2010 06:51 AM, Tracey Bernath wrote: Just curious, Has anyone actually been able to rebuild the fpga bitfile using ISE 11.4? I loaded the files from the latest git and the .ucf, and I had 239 timing errors when the process completed. I just thought before I started ripping through it I

Re: [Discuss-gnuradio] Firmware / FPGA bitstream for USRP2 Rev 4

2010-02-13 Thread Omid F
Thanks Matt for the helpful suggestions. I apologize for the long back and forths! I really appreciate your help. I checked the ethernet interface on two of my laptops. On both, I made sure this is the setting: Pause parameters for eth0: Autonegotiate: on RX: on TX: on I tried "ethtool -r eth0"

[Discuss-gnuradio] Error correction

2010-02-13 Thread abbasi9999
Hi there, As far as i know there is no library for error correction (to retransmit the packets which has been mistakenly received -i don't mean error correction codes-). can anybody direct me if this work has been done before. regards, abbasi -- View this message in context: http://old.nabble.

Re: [Discuss-gnuradio] Firmware / FPGA bitstream for USRP2 Rev 4

2010-02-13 Thread Matt Ettus
On 02/13/2010 12:49 PM, Omid F wrote: I copied the latest txrx.bin and u3_rev3.bin on a new 256MB SD-card. Then I verified and made sure it is properly copied. Still no success. LEDs don't turn on. I also tried some of the older firmware/fpga. Same results! Not all SD cards work with the USRP2.

Re: [Discuss-gnuradio] Firmware / FPGA bitstream for USRP2 Rev 4

2010-02-13 Thread Omid F
I copied the latest txrx.bin and u3_rev3.bin on a new 256MB SD-card. Then I verified and made sure it is properly copied. Still no success. LEDs don't turn on. I also tried some of the older firmware/fpga. Same results! When I use the original SD-card, the LEDs turn on properly, but for some reaso

Re: [Discuss-gnuradio] FPGA code for USRP2

2010-02-13 Thread Josh Blum
git clone git://git.ettus.com/ettus/fpga.git works for me. Perhaps you are behind a firewall that blocks the git protocol? -Josh On 02/12/2010 08:40 AM, senlin peng wrote: Hi All, I need to make some modifications on the USRP2 board. It seems I cannot download the code from: git clone git://g