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-rw-r--r--host/lib/usrp/b200/b200_io_impl.cpp11
1 files changed, 10 insertions, 1 deletions
diff --git a/host/lib/usrp/b200/b200_io_impl.cpp b/host/lib/usrp/b200/b200_io_impl.cpp
index e423285ce..d6df726af 100644
--- a/host/lib/usrp/b200/b200_io_impl.cpp
+++ b/host/lib/usrp/b200/b200_io_impl.cpp
@@ -175,7 +175,6 @@ void b200_impl::update_tick_rate(const double new_tick_rate)
}
}
-
double b200_impl::coerce_rx_samp_rate(rx_dsp_core_3000::sptr ddc, size_t dspno, const double rx_rate)
{
// Have to set tick rate first, or the ddc will change the requested rate based on default tick rate
@@ -186,6 +185,14 @@ double b200_impl::coerce_rx_samp_rate(rx_dsp_core_3000::sptr ddc, size_t dspno,
return ddc->set_host_rate(rx_rate);
}
+#define CHECK_BANDWIDTH(dir) \
+ if (rate > _codec_ctrl->get_bw_filter_range(dir).stop()) { \
+ UHD_MSG(warning) \
+ << "Selected " << dir << " bandwidth (" << (rate/1e6) << " MHz) exceeds\n" \
+ << "analog frontend filter bandwidth (" << (_codec_ctrl->get_bw_filter_range(dir).stop()/1e6) << " MHz)." \
+ << std::endl; \
+ }
+
void b200_impl::update_rx_samp_rate(const size_t dspno, const double rate)
{
boost::shared_ptr<sph::recv_packet_streamer> my_streamer =
@@ -194,6 +201,7 @@ void b200_impl::update_rx_samp_rate(const size_t dspno, const double rate)
my_streamer->set_samp_rate(rate);
const double adj = _radio_perifs[dspno].ddc->get_scaling_adjustment();
my_streamer->set_scale_factor(adj);
+ CHECK_BANDWIDTH("Rx");
}
double b200_impl::coerce_tx_samp_rate(tx_dsp_core_3000::sptr duc, size_t dspno, const double tx_rate)
@@ -214,6 +222,7 @@ void b200_impl::update_tx_samp_rate(const size_t dspno, const double rate)
my_streamer->set_samp_rate(rate);
const double adj = _radio_perifs[dspno].duc->get_scaling_adjustment();
my_streamer->set_scale_factor(adj);
+ CHECK_BANDWIDTH("Tx");
}
/***********************************************************************