# Imcompatibility between GRC version and the USRP FW **URL:** \ **Category:** GNU Radio\ **Created:** [March 27, 2014, 1:10am UTC](https://www.ruby-forum.com/t/imcompatibility-between-grc-version-and-the-usrp-fw/240090 "2014-03-27T01:10:11Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Detlef\_R](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/58f4c7/32.png) [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Post date:** [March 27, 2014, 1:10am UTC](https://www.ruby-forum.com/t/imcompatibility-between-grc-version-and-the-usrp-fw/240090/1 "2014-03-27T01:10:11Z")
HI I am presently trying to work with USRP N210 with a SBX daughter board connected to a Host laptop with Ubuntu 12.10 installed.This laptop had a version of GRC and UHD installed when I got it. But even though I was able to run some uhd example programs like tx\_waveform and uhd\_siggen\_gui.py iw as unable to run uhd\_fft.py directly from the uhd utilities. The error showed that some libraries are missing and hence I decided to update the uhd,grc version. However, the USRP with the daughter board was not getting recognised with uhd\_usrp\_probe command. So after the googling I found some people suggesting that fw on the usrp needed to be updated too. Though I have burned the latest images of usrp\_n210\_fw.bin and usrp\_n210\_fpga\_r4.bin into usrp ,still it is not working. I get the foll error message: Error:Runtime Error Please update the firmware and fpga images for your device Expected protocol compatibility number [7 t 11], got 12 The firmware is not compatible with the host code build. I am stuck and google is not providing any different answers. how do I know which is the compatible version for the current uhd and GRC Any help will be greatly appreciated. Thanks Gayathri – View this message in context: [http://gnuradio.4.n7.nabble.com/Imcompatibility-between-GRC-version-and-the-USRP-FW-tp47248.html](http://gnuradio.4.n7.nabble.com/Imcompatibility-between-GRC-version-and-the-USRP-FW-tp47248.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![Gayathri\_Ramasubram](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/9fc29f/32.png) [@Gayathri\_Ramasubram](https://www.ruby-forum.com/u/Gayathri_Ramasubram)\ **Post date:** [March 27, 2014, 1:25am UTC](https://www.ruby-forum.com/t/imcompatibility-between-grc-version-and-the-usrp-fw/240090/2 "2014-03-27T01:25:28Z")
Hi Gayathri - I’ll email you off-list with what to try to get the N210 working again. - MLD ---
**Author:** ![Gayathri\_Ramasubram](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/9fc29f/32.png) [@Gayathri\_Ramasubram](https://www.ruby-forum.com/u/Gayathri_Ramasubram)\ **Post date:** [March 27, 2014, 2:03am UTC](https://www.ruby-forum.com/t/imcompatibility-between-grc-version-and-the-usrp-fw/240090/3 "2014-03-27T02:03:07Z")
On 3/26/14 8:08 PM, Gayathri Ramasubramanian wrote: … > Though I have burned the latest images of usrp\_n210\_fw.bin and > usrp\_n210\_fpga\_r4.bin into usrp ,still it is not working. I get the foll > error message: > > Error:Runtime Error > Please update the firmware and fpga images for your device > Expected protocol compatibility number [7 t 11], got 12 > The firmware is not compatible with the host code build. It looks like still have the wrong fpga & fw images. You need to uninstall UHD and reinstall the latest version from ettus. This will get you the latest fw & fpga. THEN burn them into the USRP N210. You should probably rerun make and make install on gnuradio as well to insure you are linked to the new UHD libraries. @(^.^)@ Ed ---
**Author:** ![Gayathri\_Ramasubram](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/9fc29f/32.png) [@Gayathri\_Ramasubram](https://www.ruby-forum.com/u/Gayathri_Ramasubram)\ **Post date:** [March 27, 2014, 10:11am UTC](https://www.ruby-forum.com/t/imcompatibility-between-grc-version-and-the-usrp-fw/240090/4 "2014-03-27T10:11:57Z")
On 03/27/2014 02:01 AM, Ed Criscuolo wrote: > > The firmware is not compatible with the host code build. > > It looks like still have the wrong fpga & fw images. You need to > uninstall UHD and reinstall the latest version from ettus. > This will get you the latest fw & fpga. THEN burn them > into the USRP N210. You should probably rerun make and > make install on gnuradio as well to insure you are linked > to the new UHD libraries. Also, for the record, it seems like you’re using old versions of GNU Radio, and maybe UHD, too. uhd\_fft.py hasn’t been called that for a long time now. I recommend you clear out your GR and UHD installs completely, and start from scratch. Cheers, Martin ---
**Author:** ![Gayathri\_Ramasubram](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/9fc29f/32.png) [@Gayathri\_Ramasubram](https://www.ruby-forum.com/u/Gayathri_Ramasubram)\ **Post date:** [March 27, 2014, 11:51am UTC](https://www.ruby-forum.com/t/imcompatibility-between-grc-version-and-the-usrp-fw/240090/5 "2014-03-27T11:51:57Z")
And to complete the whole story, this is a good starting point: [http://gnuradio.org/redmine/projects/gnuradio/wiki/InstallingGR](http://gnuradio.org/redmine/projects/gnuradio/wiki/InstallingGR) Or for installing from source: [http://gnuradio.org/redmine/projects/gnuradio/wiki/InstallingGRFromSource](http://gnuradio.org/redmine/projects/gnuradio/wiki/InstallingGRFromSource) I personally prefer the buildinstall-script, not the pybombs stuff what takes too much control out of my hands. Ralph. > Also, for the record, it seems like you’re using old versions of GNU > Radio, and