Re: [USRP-users] Overflow with B210 for 2by2 MIMO design

2019-03-11 Thread Gilad Beeri (ApolloShield) via USRP-users
I had a MacBook Pro 2013 which also couldn't withstand more than ~ 8-9 MS/s w/o overflows on its USB 3.0 port. Not all USB controllers show the same performance level, not all of them actually get to the specified 5 Gb/s rate. I suggested you take everything as-is and test it on a computer with an

Re: [USRP-users] Overflow with B210 for 2by2 MIMO design

2019-03-11 Thread Xavier Arteaga via USRP-users
Hi Ayaz, Can you try to run the command *uhd_usrp_probe* and check that opens the USRP with USB3 and not USB2? linux; GNU C++ version 7.3.0; Boost_106501; UHD_003.009.007-5-ge8202128 -- Detected Device: B210 *-- Operating over USB 3.* -- Initialize CODEC control... -- Initialize Radio control...

[USRP-users] Overflow with B210 for 2by2 MIMO design

2019-03-10 Thread Ayaz Mahmud via USRP-users
Trying to develop 802.11n (a 2 by 2 MIMO) standard by using two B210s. Initially started with the existing flow of GnuRadio/examples/digital/OFDM/tx.ofdm.grc. Lets take only the transmitter side for this question. Things that are changed in OFDM.grc: 1. The OFDM allocator block: The sync wo