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[Discuss-gnuradio] How to set the timestamp for synchronize transmitting
From: |
hanwen |
Subject: |
[Discuss-gnuradio] How to set the timestamp for synchronize transmitting with multiple USRP2. |
Date: |
Fri, 30 Oct 2009 14:27:56 +0100 |
Hi Talents,
We are trying to synchronize multiple USRP2s for MIMO transmision. Common 10MHz clock and 1PPS are used, as well as sync_to_pps() and config_mimo(usrp2.MC_WE_LOCK_TO_SMA).
We tried to set the metadata of packets in order to specify a starting point of transmssion.
usrp2::tx_metadata md;
md.timestamp = 99999999;
md.start_of_burst = 1;
md.send_now = 0;
But it just doesn't work? If it is possible to synchronize the transmission, could you tell us how?
Bests,
Hanwen
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