On Tue, Feb 26, 2013 at 9:12 PM, Josh Blum <j...@ettus.com> wrote: > > > On 02/26/2013 08:03 PM, Manu T S wrote: >> In gnuradio/digital/packet_utils, the packets are padded to make it a >> multiple of 512 bytes to be sent across the USB(As per the comment there). >> >> USRP2 and N210 uses ethernet connection. Is it important to have padding >> for USRP in for these devices? If so is it the same number? ( 512 bytes to >> be sent across ethernet ) >> > > You should not need any padding. All of the devices (except usrp1) send > samples encapsulated in a packet format so the boundaries of the samples > are known by the device. > > I dont think you need the padding for USRP1 either, since UHD will flush > out the buffer to a 512 byte multiple if it sees the EOB specified. > > -josh
Yeah, that requirement comes from back in the libusrp days where it was just a pipe that we provided samples to and had to make sure the boundaries were met ourselves before sending along. With the UHD interface, you can safely ignore it. Tom _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
