Hi CDL - As you also replied on the USRP list & this is a UHD and/or Ettus Research issue, not a GR issue, we're moving the discussion to just that email group & leaving this one. You'll still get support, just there & not here. - MLD
On Thu, Sep 10, 2015, at 06:40 AM, cdl wrote:
i am using one usrp b200,to do a tx rx loopback,the tx connect to the rx
when i exe the grc i got the error message
-- Asking for clock rate 51.200000 MHz... OK
-- Asking for clock rate 51.200000 MHz... OK
-- Asking for clock rate 51.200000 MHz... OK
-- Asking for clock rate 51.200000 MHz... OK
UU
(python2:2705): IBUS-WARNING **: Unable to connect to ibus: 无法连接： 拒绝连接
terminate called after throwing an instance of 'uhd::runtime_error'
what(): RuntimeError: usb tx2 transfer status: LIBUSB_TRANSFER_ERROR
i wants to konw what is this message mean so that i can fix it with myself,thank you all