Hello list, New code has been pushed to master and new images have been uploaded. This effects USRP2, USRP-N210, and USRP-E100. http://www.ettus.com/downloads/uhd_images/UHD-images-most-recent/
E100 Users: expect a follow-up announcement for an updated kernel and instructions. ----------------------------------------------------------------------- -- Stability ----------------------------------------------------------------------- The gr-uhd component is now part of the gnuradio master branch; the gnuradio-master branch and the uhd master branch are now compatible. At this point, we intend to keep the master branch of UHD stable. The master branch will only be changed for bug fixes, and new hardware support. Other than that, API and implementation code will not be changed. After an initial trial period to discover bugs and provide fixes, we plan to provide UHD installers for the various platforms (rpm, deb, exe). ----------------------------------------------------------------------- -- New feature - second DDC in USRP2 and N210 ----------------------------------------------------------------------- The USRP2 and N210 now features a second receiver chain the FPGA. This will allow one to simultaneously receive from daughterboards with multiple subdevices (Ex: Basic-RX, TVRX2). Or, have two channels with different frequency offsets on one subdevice. Both channels will have the same sample rate. To use the second receiver, set the appropriate RX subdevice specification. For example, to get get subdevice A on channel 0 and subdevice B on channel 1 on a BasicRX, use ":A :B". The behavior is identical for anyone using multi channel UHD on a USRP1. There is also a multi-channel receive example in uhd: http://code.ettus.com/redmine/ettus/projects/uhd/repository/revisions/master/entry/host/examples/rx_multi_samples.cpp ----------------------------------------------------------------------- -- New feature - jumbo frames with USRP2 and N210 ----------------------------------------------------------------------- After some refactoring of the buffering in the device, we have not only freed additional block rams, but the internal buffering now supports larger frames sizes up to 4K. In order to use jumbo frames, you must have an ethernet card that supports the large frame size. Usually this can be set with ifconfig <dev> mtu <size> The default frame size will not exceed 2K unless the user overrides this with special transport options: http://www.ettus.com/uhd_docs/manual/html/transport.html#udp-transport-sockets ----------------------------------------------------------------------- Testing and feedback is always welcome! Thanks, -Josh _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
