But you don't *need* it, either. So, don't add EOB if you're using a current GNU Radio.
M On 07/30/2014 06:24 PM, Marcus Müller wrote: > Hi Xianda, > as Martin said: >> So, the OFDM code does *not* add EOB > > Greetings, > Marcus > > On 30.07.2014 18:06, xianda wrote: >> >> Hi Marcus: >> Thank you.I just want to know whether the example >> tx_ofdm.grc add start_of_burst at the beginning of every packet and add >> end_of_burst at the end of every packet? >> Best regards, >> xd >> >> >> >> >> >> >> At 2014-07-31 00:03:33, "Marcus Müller" <[email protected]> wrote: >>> Sorry Xianda, >>> I'm still not understanding completely. >>> Is this question about a) tx_ofdm.grc, or b) not about GNU Radio? >>> >>> Best regards, >>> Marcus >>> >>> On 30.07.2014 17:51, xianda wrote: >>>> Hi Marcus: >>>> Thank you so much.I just want to make some changes on the >>>> example of tx_ofdm.grc.And I use the UHD not the gnuradio.But the example >>>> is about the gnuradio.I know a packet in the example tx_ofdm.grc include a >>>> preamble,a header,the payload and crc value.And I want to know whether >>>> need I add start_of_burst at the beginning of every packet and add >>>> end_of_burst at the end of every packet?Am I right? >>>> Best regards, >>>> xd >>>> >>>> >>>> >>>> >>>> >>>> At 2014-07-30 11:39:02, "Marcus Müller" <[email protected]> wrote: >>>> Hi Xianda, >>>> if you don't use gnuradio, this might not be the right list for you... >>>> Anyway, I think it's possible you're confusing something. start_of_burst / >>>> end_of burst are stream tags that are GNU Radio concepts. There is not >>>> something like this without GNU Radio. >>>> UHD supports timed commands, which might be close to what you need, but I >>>> really don't understand what your question aims at. >>>> >>>> Greetings, >>>> Marcus >>>> >>>> >>>> On 30.07.2014 16:50, xianda wrote: >>>> >>>> Hi: >>>> Thank you so much for your kindly reply.I write c++ code use the uhd >>>> not gnuradio.So need I add start_of_burst at the beginning of every packet >>>> and add end_of_burst at the end of every packet?Thank you. >>>> Best regards, >>>> xd >>>> >>>> >>>> >>>> >>>> >>>> >>>> At 2014-07-30 10:05:47, "Martin Braun" <[email protected]> wrote: >>>> >>>> On 07/30/2014 03:59 AM, xianda wrote: >>>> >>>> Hi all: >>>> I know a packet in the example tx_ofdm.grc include a preamble,a >>>> header,the payload and crc value.Recently I have used the UHD API to >>>> send packet.And I want to know whether the tx_ofdm.grc add >>>> start_of_burst and end_of_burst automatically.Namely,need I add >>>> start_of_burst at the beginning of every packet and add end_of_burst at >>>> the end of every packet? >>>> >>>> usrp_sink understands tagged streams. So, the OFDM code does *not* add >>>> EOB, but that doesn't matter if you have an up-to-date gr-uhd. >>>> >>>> M >>>> >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing list >>>> [email protected]https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> >>>> >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing list >>>> [email protected]https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
