diff options
Diffstat (limited to 'host/lib/usrp/b200/b200_impl.cpp')
| -rw-r--r-- | host/lib/usrp/b200/b200_impl.cpp | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/host/lib/usrp/b200/b200_impl.cpp b/host/lib/usrp/b200/b200_impl.cpp index a7f9b11bd..9dd3a424d 100644 --- a/host/lib/usrp/b200/b200_impl.cpp +++ b/host/lib/usrp/b200/b200_impl.cpp @@ -157,12 +157,12 @@ b200_impl::b200_impl(const device_addr_t &device_addr) const fs_path mb_path = "/mboards/0"; //try to match the given device address with something on the USB bus - uint16_t vid = B200_VENDOR_ID; - uint16_t pid = B200_PRODUCT_ID; + boost::uint16_t vid = B200_VENDOR_ID; + boost::uint16_t pid = B200_PRODUCT_ID; if (device_addr.has_key("vid")) - sscanf(device_addr.get("vid").c_str(), "%x", &vid); + sscanf(device_addr.get("vid").c_str(), "%hx", &vid); if (device_addr.has_key("pid")) - sscanf(device_addr.get("pid").c_str(), "%x", &pid); + sscanf(device_addr.get("pid").c_str(), "%hx", &pid); std::vector<usb_device_handle::sptr> device_list = usb_device_handle::get_device_list(vid, pid); @@ -663,9 +663,40 @@ void b200_impl::codec_loopback_self_test(wb_iface::sptr iface) /*********************************************************************** * Sample and tick rate comprehension below **********************************************************************/ +void b200_impl::enforce_tick_rate_limits(size_t chan_count, double tick_rate, const char* direction /*= NULL*/) +{ + const size_t max_chans = 2; + if (chan_count > max_chans) + { + throw uhd::value_error(boost::str( + boost::format("cannot not setup %d %s channels (maximum is %d)") + % chan_count + % (direction ? direction : "data") + % max_chans + )); + } + else + { + const double max_tick_rate = ((chan_count <= 1) ? AD9361_1_CHAN_CLOCK_RATE_MAX : AD9361_2_CHAN_CLOCK_RATE_MAX); + if (tick_rate > max_tick_rate) + { + throw uhd::value_error(boost::str( + boost::format("current master clock rate (%.2f MHz) exceeds maximum possible master clock rate (%.2f MHz) when using %d %s channels") + % (tick_rate/1e6) + % (max_tick_rate/1e6) + % chan_count + % (direction ? direction : "data") + )); + } + } +} + double b200_impl::set_tick_rate(const double rate) { UHD_MSG(status) << "Asking for clock rate " << rate/1e6 << " MHz\n"; + + check_tick_rate_with_current_streamers(rate); // Defined in b200_io_impl.cpp + _tick_rate = _codec_ctrl->set_clock_rate(rate); UHD_MSG(status) << "Actually got clock rate " << _tick_rate/1e6 << " MHz\n"; |