Hi Josh, Please could you add TVRX rev1 support to your UHD things to do list.
I'd like to update my scanner apps to be universal before I release them. Thanks, Mike M0MIK On 20 July 2011 06:43, Josh Blum <j...@ettus.com> wrote: > Hello list, > > I have pulled work from the next branch into the master. If you are > working from the code in the master branch, you will need to update your > FPGA images. In the case of E100 users, this will also require a kernel > uImage and kernel modules update. > > FPGA and firmware images for the master branch can be found here. > http://code.ettus.com/redmine/ettus/projects/uhd/wiki#Binary-downloads > > Some changes are summarized below, for a detailed list see: > http://code.ettus.com/redmine/ettus/projects/uhd/wiki/ChangeLog > > ----------------------------------------------------------------------- > -- USRP2 / N-series changes > ----------------------------------------------------------------------- > The mimo_mode device address argument was removed. It was redundant, and > there is now one proper way to set the clock and time source, which is > to set the clock configuration: > http://www.ettus.com/uhd_docs/manual/html/usrp2.html#using-the-mimo-cable > > The gr-uhd blocks in gnuradio now provide per motherboard reference > source configurations, and the MIMO cable has been added as a possible > reference source option. If you have a source and sink block referring > to the same device, it is only necessary to set the reference source in > one of the blocks. See the docs in the block properties windows. > > We have made significant gains in windows transmit performance. 1) The > UDP transport now uses the async (aka overlapped) IO to submit UDP > packets. And 2) It is imperative that a magical registry value be set > allow MTU sized datagrams to pass efficiently through the kernel. Docs > here: > > http://www.ettus.com/uhd_docs/manual/html/transport.html#windows-specific-notes > > ----------------------------------------------------------------------- > -- USRP E100 changes > ----------------------------------------------------------------------- > There is no longer any need for clock recovery and the pass-through > image after programming in bad clock rates. The UHD can bring up the > clock at every run regardless of the previous settings. > > Async messages are no longer muxed into the receive path. This frees up > some overhead and thread context switching in UHD's receive fast-path. > > E100 now has dual RX DSP support just like USRP2 and N-Series. > > For those of you compiling UHD native on the embedded processor, you > will be pleased to find out that UHD links much-much faster. > > We have changed the name of the fpga image file that the E100 code > searches for. This is to prevent the older images from being > automatically loaded. Please do not rename an older image to force it > to load. Instead, please get new images from the downloads page. > > For now, please find compatible kernel images for the master branch > here: > > http://www.ettus.com/downloads/uhd_releases/master_images/e100_kernel_images/ > > See updating kernel modules: > > http://code.ettus.com/redmine/ettus/projects/usrpe1xx/wiki/BootFiles#Updating-kernel-modules > And updating the uImage: > > http://code.ettus.com/redmine/ettus/projects/usrpe1xx/wiki/BootFiles#Updating-Boot-Files > > ----------------------------------------------------------------------- > -- Overall changes > ----------------------------------------------------------------------- > For USRP2, N2XX, and E100, the receive and transmit DSPs have been > reworked to include clipping and rounding, IQ imbalance compensation, > and DC offset compensation. While the fpga work is implemented, the > hooks for compensation are not yet in the host code. Expect this soon. > > The "glue" code for the various USRP motherboards has been re-worked and > simplified. Duplicated code has been abstracted out. All of the various > things on a motherboard are registered into a property tree, where each > element in the tree has registered callbacks for set and get. The > multi-usrp implementation sits on top of this properties layer. > For the curious, run uhd_usrp_probe --tree > > The common packet handler code has been improved. For receive, users can > expect, timestamps on packet fragments, and inline overflow messages for > USRP2/N-Series. And for transmit, timestamps on individual packets when > UHD fragments a buffer that was decorated with a timestamp. > > ----------------------------------------------------------------------- > > Feedback and testing is always welcome! > -Josh > > _______________________________________________ > USRP-users mailing list > usrp-us...@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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