diff options
Diffstat (limited to 'host/lib/usrp/b200')
| -rw-r--r-- | host/lib/usrp/b200/b200_io_impl.cpp | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/host/lib/usrp/b200/b200_io_impl.cpp b/host/lib/usrp/b200/b200_io_impl.cpp index 60b925517..d6df726af 100644 --- a/host/lib/usrp/b200/b200_io_impl.cpp +++ b/host/lib/usrp/b200/b200_io_impl.cpp @@ -118,8 +118,7 @@ void b200_impl::set_auto_tick_rate( // Step 2: Determine whether if we can use lcm_rate (preferred), // or have to give up because too large: - const double max_tick_rate = - ((num_chans <= 1) ? ad9361_device_t::AD9361_RECOMMENDED_MAX_CLOCK_RATE : ad9361_device_t::AD9361_MAX_CLOCK_RATE/2); + const double max_tick_rate = ad9361_device_t::AD9361_MAX_CLOCK_RATE/num_chans; double base_rate = static_cast<double>(lcm_rate); if (base_rate > max_tick_rate) { UHD_MSG(warning) @@ -176,7 +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 @@ -187,6 +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 = @@ -195,6 +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) @@ -215,6 +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"); } /*********************************************************************** |