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-rw-r--r--host/docs/usrp1.rst1
-rw-r--r--host/examples/CMakeLists.txt1
-rw-r--r--host/examples/latency_test.cpp208
-rw-r--r--host/include/uhd/types/time_spec.hpp7
-rw-r--r--host/lib/types/CMakeLists.txt56
-rw-r--r--host/lib/types/time_spec.cpp70
-rw-r--r--host/lib/usrp/usrp1/io_impl.cpp16
-rw-r--r--host/lib/usrp/usrp1/soft_time_ctrl.cpp37
-rw-r--r--host/lib/usrp/usrp1/usrp1_impl.hpp1
-rw-r--r--host/tests/time_spec_test.cpp19
-rwxr-xr-xhost/utils/usrp_n2xx_net_burner.py37
11 files changed, 411 insertions, 42 deletions
diff --git a/host/docs/usrp1.rst b/host/docs/usrp1.rst
index 0a8224850..4a239444a 100644
--- a/host/docs/usrp1.rst
+++ b/host/docs/usrp1.rst
@@ -78,6 +78,7 @@ List of emulated features
* Setting the current device time
* Getting the current device time
* Transmitting at a specific time
+* Transmitting a specific number of samples
* Receiving at a specific time
* Receiving a specific number of samples
* End of burst flags for transmit/receive
diff --git a/host/examples/CMakeLists.txt b/host/examples/CMakeLists.txt
index ac131b217..47152a88a 100644
--- a/host/examples/CMakeLists.txt
+++ b/host/examples/CMakeLists.txt
@@ -27,6 +27,7 @@ SET(example_sources
test_pps_input.cpp
tx_timed_samples.cpp
tx_waveforms.cpp
+ latency_test.cpp
)
#for each source: build an executable and install
diff --git a/host/examples/latency_test.cpp b/host/examples/latency_test.cpp
new file mode 100644
index 000000000..340e87fb7
--- /dev/null
+++ b/host/examples/latency_test.cpp
@@ -0,0 +1,208 @@
+//
+// Copyright 2010-2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ double wait_time;
+ size_t total_num_samps;
+ size_t samps_per_packet;
+ double rate, freq;
+ float ampl;
+ double delta_t;
+ size_t pkts;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("wait", po::value<double>(&wait_time)->default_value(0.1), "wait time between test cycles")
+ ("rtt", po::value<double>(&delta_t)->default_value(0.001), "Round-Trip time to test")
+ ("nsamps", po::value<size_t>(&total_num_samps)->default_value(100), "total number of samples to transmit")
+ ("spp", po::value<size_t>(&samps_per_packet)->default_value(1000), "number of samples per packet")
+ ("pkts", po::value<size_t>(&pkts)->default_value(1000), "number of packets")
+ ("rate", po::value<double>(&rate)->default_value(100e6/4), "rate of outgoing samples")
+ ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
+ ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of each sample")
+ ("dilv", "specify to disable inner-loop verbose")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("Latency Test %s") % desc << std::endl;
+ return ~0;
+ }
+
+ bool verbose = vm.count("dilv") == 0;
+
+ //create a usrp device
+ std::cout << std::endl;
+ //std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ //std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the tx sample rate
+ sdev->set_tx_rate(rate);
+ std::cout << boost::format("Actual TX Rate: %f Msps...") % (sdev->get_tx_rate()/1e6) << std::endl;
+
+ //set the rx sample rate
+ sdev->set_rx_rate(rate);
+ std::cout << boost::format("Actual RX Rate: %f Msps...") % (sdev->get_rx_rate()/1e6) << std::endl;
+
+ //allocate data to send
+ std::vector<std::complex<float> > txbuff(samps_per_packet, std::complex<float>(ampl, ampl));
+
+ //allocate receive buffer
+ std::vector<std::complex<float> > rxbuff(samps_per_packet, std::complex<float>(ampl, ampl));
+
+
+ int time_error = 0;
+ int ack = 0;
+ int underflow = 0;
+ int other = 0;
+ // **************************************************
+ if(verbose)
+ std::cout << boost::format("Setting device timestamp to 0...") << std::endl;
+ sdev->set_time_now(uhd::time_spec_t(0.0));
+
+ //setup streaming
+ std::cout << std::endl;
+ if(verbose)
+ std::cout << boost::format(
+ "Begin receiving %u samples, %f seconds in the future..."
+ ) % total_num_samps % wait_time << std::endl;
+
+ uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
+ stream_cmd.num_samps = total_num_samps;
+ stream_cmd.stream_now = false;
+
+ uhd::tx_metadata_t tx_md;
+
+ size_t num_packets = (total_num_samps+samps_per_packet-1)/samps_per_packet;
+
+
+ uhd::time_spec_t cur_time;
+ sdev->set_time_now(uhd::time_spec_t(cur_time));
+
+ for(int j=0;j<pkts;j++) {
+ int err = 0;
+ //sleep(0.3);
+ cur_time = sdev->get_time_now() + uhd::time_spec_t(0.01);
+ stream_cmd.time_spec = uhd::time_spec_t(cur_time);
+ sdev->issue_stream_cmd(stream_cmd);
+ size_t num_acc_samps = 0;
+ uhd::rx_metadata_t rx_md;
+ while(num_acc_samps < total_num_samps){
+ std::vector<std::complex<float> > rxbuff(dev->get_max_recv_samps_per_packet());
+ size_t num_rx_samps = dev->recv(
+ &rxbuff.front(), rxbuff.size(), rx_md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::RECV_MODE_ONE_PACKET
+ );
+
+ switch(rx_md.error_code){
+ case uhd::rx_metadata_t::ERROR_CODE_NONE:
+ break;
+ case uhd::rx_metadata_t::ERROR_CODE_TIMEOUT:
+ if (num_acc_samps == 0) continue;
+ std::cout << boost::format
+ ("Got timeout before all samples received, possible packet loss, exiting loop...") << std::endl;
+ err = 1;
+ goto done_loop;
+ default:
+ std::cout << boost::format("Got error code 0x%x, exiting loop...") % rx_md.error_code << std::endl;
+ err = 1;
+ goto done_loop;
+ }
+
+ if(verbose) std::cout << boost::format("Got packet: %u samples, %u full secs, %f frac secs")
+ % num_rx_samps % rx_md.time_spec.get_full_secs() % rx_md.time_spec.get_frac_secs() << std::endl;
+
+ num_acc_samps += num_rx_samps;
+ } done_loop:
+
+ if(verbose) std::cout << "Done receiving samps" << std::endl;
+ if(err)
+ continue;
+ for (size_t i = 0; i < num_packets; i++){
+ //setup the metadata flags per fragment
+ tx_md.start_of_burst = (i == 0); //only first packet has SOB
+ tx_md.end_of_burst = (i == num_packets-1); //only last packet has EOB
+ tx_md.has_time_spec = (i == 0); //only first packet has time
+
+ size_t samps_to_send = std::min(total_num_samps - samps_per_packet*i, samps_per_packet);
+
+ //send the entire packet (driver fragments internally)
+ //tx_md.time_spec = rx_md.time_spec+uhd::time_spec_t(delta_t);
+ tx_md.time_spec = cur_time + uhd::time_spec_t(delta_t);
+ size_t num_tx_samps = dev->send
+ (&txbuff.front(), samps_to_send, tx_md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF,
+ //send will backup into the host this many seconds before sending:
+ 0.1 //timeout (delay before transmit + padding)
+ );
+ if (num_tx_samps < samps_to_send) std::cout << "Send timeout..." << std::endl;
+ if(verbose)
+ std::cout << std::endl << boost::format("Sent %d samples") % num_tx_samps << std::endl;
+ }
+
+ uhd::async_metadata_t async_md;
+ if (not dev->recv_async_msg(async_md)){
+ std::cout << boost::format
+ ("failed:\n Async message recv timed out.\n") << std::endl;
+ } else {
+ switch(async_md.event_code){
+ case uhd::async_metadata_t::EVENT_CODE_TIME_ERROR :
+ time_error++;
+ break;
+ case uhd::async_metadata_t::EVENT_CODE_BURST_ACK :
+ ack++;
+ break;
+ case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW :
+ underflow++;
+ break;
+ default:
+ std::cout << boost::format
+ ("failed:\n Got unexpected event code 0x%x.\n")
+ % async_md.event_code << std::endl;
+ other++;
+ break;
+ }
+ }
+ }
+ std::cout << boost::format("ACK %d, UNDERFLOW %d, TIME_ERR %d, other %d") % ack
+ % underflow % time_error % other << std::endl;
+ return 0;
+}
diff --git a/host/include/uhd/types/time_spec.hpp b/host/include/uhd/types/time_spec.hpp
index 57d002d48..2046fbd3f 100644
--- a/host/include/uhd/types/time_spec.hpp
+++ b/host/include/uhd/types/time_spec.hpp
@@ -40,6 +40,13 @@ namespace uhd{
public:
/*!
+ * Get the system time in time_spec_t format.
+ * Uses the highest precision clock available.
+ * \return the system time as a time_spec_t
+ */
+ static time_spec_t get_system_time(void);
+
+ /*!
* Create a time_spec_t from a real-valued seconds count.
* \param secs the real-valued seconds count (default = 0)
*/
diff --git a/host/lib/types/CMakeLists.txt b/host/lib/types/CMakeLists.txt
index dfb7cf903..ad625111e 100644
--- a/host/lib/types/CMakeLists.txt
+++ b/host/lib/types/CMakeLists.txt
@@ -16,6 +16,62 @@
#
########################################################################
+# Setup defines for high resolution timing
+########################################################################
+MESSAGE(STATUS "")
+MESSAGE(STATUS "Configuring high resolution timing...")
+INCLUDE(CheckCXXSourceCompiles)
+
+SET(CMAKE_REQUIRED_LIBRARIES -lrt)
+CHECK_CXX_SOURCE_COMPILES("
+ #include <ctime>
+ int main(){
+ timespec ts;
+ return clock_gettime(CLOCK_MONOTONIC, &ts);
+ }
+ " HAVE_CLOCK_GETTIME
+)
+UNSET(CMAKE_REQUIRED_LIBRARIES)
+
+INCLUDE(CheckCXXSourceCompiles)
+CHECK_CXX_SOURCE_COMPILES("
+ #include <mach/mach_time.h>
+ int main(){
+ mach_timebase_info_data_t info;
+ mach_timebase_info(&info);
+ mach_absolute_time();
+ return 0;
+ }
+ " HAVE_MACH_ABSOLUTE_TIME
+)
+
+CHECK_CXX_SOURCE_COMPILES("
+ #include <Windows.h>
+ int main(){
+ LARGE_INTEGER value;
+ QueryPerformanceCounter(&value);
+ QueryPerformanceFrequency(&value);
+ return 0;
+ }
+ " HAVE_QUERY_PERFORMANCE_COUNTER
+)
+
+IF(HAVE_CLOCK_GETTIME)
+ MESSAGE(STATUS " High resolution timing supported through clock_gettime.")
+ ADD_DEFINITIONS(-DTIME_SPEC_USE_CLOCK_GETTIME)
+ SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -lrt")
+ELSEIF(HAVE_MACH_ABSOLUTE_TIME)
+ MESSAGE(STATUS " High resolution timing supported through mach_absolute_time.")
+ ADD_DEFINITIONS(-DTIME_SPEC_USE_MACH_ABSOLUTE_TIME)
+ELSEIF(HAVE_QUERY_PERFORMANCE_COUNTER)
+ MESSAGE(STATUS " High resolution timing supported through QueryPerformanceCounter.")
+ ADD_DEFINITIONS(-DTIME_SPEC_USE_QUERY_PERFORMANCE_COUNTER)
+ELSE()
+ MESSAGE(STATUS " High resolution timing supported though microsec_clock.")
+ ADD_DEFINITIONS(-DTIME_SPEC_USE_MICROSEC_CLOCK)
+ENDIF()
+
+########################################################################
# This file included, use CMake directory variables
########################################################################
LIBUHD_APPEND_SOURCES(
diff --git a/host/lib/types/time_spec.cpp b/host/lib/types/time_spec.cpp
index f39625a11..ece3b92f3 100644
--- a/host/lib/types/time_spec.cpp
+++ b/host/lib/types/time_spec.cpp
@@ -19,6 +19,70 @@
#include <boost/math/special_functions/round.hpp>
using namespace uhd;
+
+/***********************************************************************
+ * Time spec system time
+ **********************************************************************/
+
+/*!
+ * Creates a time spec from system counts:
+ * TODO make part of API as a static factory function
+ * The counts type is 64 bits and will overflow the ticks type of long.
+ * Therefore, divmod the counts into seconds + sub-second counts first.
+ */
+#include <inttypes.h> //imaxdiv, intmax_t
+static UHD_INLINE time_spec_t time_spec_t_from_counts(intmax_t counts, intmax_t freq){
+ imaxdiv_t divres = imaxdiv(counts, freq);
+ return time_spec_t(time_t(divres.quot), double(divres.rem)/freq);
+}
+
+#ifdef TIME_SPEC_USE_CLOCK_GETTIME
+#include <time.h>
+time_spec_t time_spec_t::get_system_time(void){
+ timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts);
+ return time_spec_t(ts.tv_sec, ts.tv_nsec, 1e9);
+}
+#endif /* TIME_SPEC_USE_CLOCK_GETTIME */
+
+
+#ifdef TIME_SPEC_USE_MACH_ABSOLUTE_TIME
+#include <mach/mach_time.h>
+time_spec_t time_spec_t::get_system_time(void){
+ mach_timebase_info_data_t info; mach_timebase_info(&info);
+ intmax_t nanosecs = mach_absolute_time()*info.numer/info.denom;
+ return time_spec_t_from_counts(nanosecs, intmax_t(1e9));
+}
+#endif /* TIME_SPEC_USE_MACH_ABSOLUTE_TIME */
+
+
+#ifdef TIME_SPEC_USE_QUERY_PERFORMANCE_COUNTER
+#include <Windows.h>
+time_spec_t time_spec_t::get_system_time(void){
+ LARGE_INTEGER counts, freq;
+ QueryPerformanceCounter(&counts);
+ QueryPerformanceFrequency(&freq);
+ return time_spec_t_from_counts(counts.QuadPart, freq.QuadPart);
+}
+#endif /* TIME_SPEC_USE_QUERY_PERFORMANCE_COUNTER */
+
+
+#ifdef TIME_SPEC_USE_MICROSEC_CLOCK
+#include <boost/date_time/posix_time/posix_time.hpp>
+namespace pt = boost::posix_time;
+time_spec_t time_spec_t::get_system_time(void){
+ pt::ptime time_now = pt::microsec_clock::universal_time();
+ pt::time_duration time_dur = time_now - pt::from_time_t(0);
+ return time_spec_t(
+ time_t(time_dur.total_seconds()),
+ long(time_dur.fractional_seconds()),
+ double(pt::time_duration::ticks_per_second())
+ );
+}
+#endif /* TIME_SPEC_USE_MICROSEC_CLOCK */
+
+/***********************************************************************
+ * Time spec constructors
+ **********************************************************************/
time_spec_t::time_spec_t(double secs):
_full_secs(0),
_frac_secs(secs)
@@ -40,6 +104,9 @@ time_spec_t::time_spec_t(time_t full_secs, long tick_count, double tick_rate):
/* NOP */
}
+/***********************************************************************
+ * Time spec accessors
+ **********************************************************************/
long time_spec_t::get_tick_count(double tick_rate) const{
return boost::math::iround(this->get_frac_secs()*tick_rate);
}
@@ -58,6 +125,9 @@ double time_spec_t::get_frac_secs(void) const{
return std::fmod(this->_frac_secs, 1.0);
}
+/***********************************************************************
+ * Time spec math overloads
+ **********************************************************************/
time_spec_t &time_spec_t::operator+=(const time_spec_t &rhs){
this->_full_secs += rhs.get_full_secs();
this->_frac_secs += rhs.get_frac_secs();
diff --git a/host/lib/usrp/usrp1/io_impl.cpp b/host/lib/usrp/usrp1/io_impl.cpp
index 9fa1b4f72..52a7c6650 100644
--- a/host/lib/usrp/usrp1/io_impl.cpp
+++ b/host/lib/usrp/usrp1/io_impl.cpp
@@ -91,7 +91,6 @@ struct usrp1_impl::io_impl{
void commit_send_buff(offset_send_buffer::sptr, offset_send_buffer::sptr, size_t);
void flush_send_buff(void);
bool get_send_buffs(vrt_packet_handler::managed_send_buffs_t &, double);
- bool transmitting_enb;
};
/*!
@@ -133,6 +132,9 @@ void usrp1_impl::io_impl::flush_send_buff(void){
//calculate the number of bytes to alignment
size_t bytes_to_pad = (-1*curr_buff->offset)%alignment_padding;
+ //send at least alignment_padding to guarantee zeros are sent
+ if (bytes_to_pad == 0) bytes_to_pad = alignment_padding;
+
//get the buffer, clear, and commit (really current buffer)
vrt_packet_handler::managed_send_buffs_t buffs(1);
if (this->get_send_buffs(buffs, 0.1)){
@@ -190,7 +192,7 @@ void usrp1_impl::io_init(void){
);
rx_stream_on_off(false);
- tx_stream_on_off(false);
+ _io_impl->flush_send_buff();
}
void usrp1_impl::rx_stream_on_off(bool enb){
@@ -201,13 +203,6 @@ void usrp1_impl::rx_stream_on_off(bool enb){
}
}
-void usrp1_impl::tx_stream_on_off(bool enb){
- if (not enb) _io_impl->flush_send_buff();
- _codec_ctrls[DBOARD_SLOT_A]->enable_tx_digital(enb);
- _codec_ctrls[DBOARD_SLOT_B]->enable_tx_digital(enb);
- _io_impl->transmitting_enb = enb;
-}
-
/***********************************************************************
* Data send + helper functions
**********************************************************************/
@@ -232,7 +227,6 @@ size_t usrp1_impl::send(
send_mode_t send_mode, double timeout
){
if (_soft_time_ctrl->send_pre(metadata, timeout)) return num_samps;
- if (not _io_impl->transmitting_enb) tx_stream_on_off(true);
size_t num_samps_sent = vrt_packet_handler::send(
_io_impl->packet_handler_send_state, //last state of the send handler
@@ -250,7 +244,7 @@ size_t usrp1_impl::send(
//handle eob flag (commit the buffer, disable the DACs)
//check num samps sent to avoid flush on incomplete/timeout
if (metadata.end_of_burst and num_samps_sent == num_samps){
- this->tx_stream_on_off(false);
+ _io_impl->flush_send_buff();
}
//handle the polling for underflow conditions
diff --git a/host/lib/usrp/usrp1/soft_time_ctrl.cpp b/host/lib/usrp/usrp1/soft_time_ctrl.cpp
index c91ecc7ed..246df93eb 100644
--- a/host/lib/usrp/usrp1/soft_time_ctrl.cpp
+++ b/host/lib/usrp/usrp1/soft_time_ctrl.cpp
@@ -18,7 +18,8 @@
#include "soft_time_ctrl.hpp"
#include <uhd/transport/bounded_buffer.hpp>
#include <boost/any.hpp>
-#include <boost/thread.hpp>
+#include <boost/thread/thread.hpp>
+#include <boost/thread/condition_variable.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <iostream>
@@ -27,30 +28,7 @@ using namespace uhd::usrp;
using namespace uhd::transport;
namespace pt = boost::posix_time;
-static const time_spec_t TWIDDLE(0.0015);
-
-/***********************************************************************
- * Utility helper functions
- **********************************************************************/
-
-//TODO put these in time_spec_t (maybe useful)
-
-static const double time_dur_tps = double(pt::time_duration::ticks_per_second());
-
-time_spec_t time_dur_to_time_spec(const pt::time_duration &time_dur){
- return time_spec_t(
- time_dur.total_seconds(),
- long(time_dur.fractional_seconds()),
- time_dur_tps
- );
-}
-
-pt::time_duration time_spec_to_time_dur(const time_spec_t &time_spec){
- return pt::time_duration(
- 0, 0, long(time_spec.get_full_secs()),
- time_spec.get_tick_count(time_dur_tps)
- );
-}
+static const time_spec_t TWIDDLE(0.0011);
/***********************************************************************
* Soft time control implementation
@@ -84,7 +62,7 @@ public:
******************************************************************/
void set_time(const time_spec_t &time){
boost::mutex::scoped_lock lock(_update_mutex);
- _time_offset = boost::get_system_time() - time_spec_to_time_dur(time);
+ _time_offset = time_spec_t::get_system_time() - time;
}
time_spec_t get_time(void){
@@ -94,7 +72,7 @@ public:
UHD_INLINE time_spec_t time_now(void){
//internal get time without scoped lock
- return time_dur_to_time_spec(boost::get_system_time() - _time_offset);
+ return time_spec_t::get_system_time() - _time_offset;
}
UHD_INLINE void sleep_until_time(
@@ -102,7 +80,8 @@ public:
){
boost::condition_variable cond;
//use a condition variable to unlock, sleep, lock
- cond.timed_wait(lock, _time_offset + time_spec_to_time_dur(time));
+ double seconds_to_sleep = (time - time_now()).get_real_secs();
+ cond.timed_wait(lock, pt::microseconds(long(seconds_to_sleep*1e6)));
}
/*******************************************************************
@@ -211,7 +190,7 @@ private:
boost::mutex _update_mutex;
size_t _nsamps_remaining;
stream_cmd_t::stream_mode_t _stream_mode;
- pt::ptime _time_offset;
+ time_spec_t _time_offset;
bounded_buffer<boost::any>::sptr _cmd_queue;
const cb_fcn_type _stream_on_off;
boost::thread_group _thread_group;
diff --git a/host/lib/usrp/usrp1/usrp1_impl.hpp b/host/lib/usrp/usrp1/usrp1_impl.hpp
index 057725394..28199ebe3 100644
--- a/host/lib/usrp/usrp1/usrp1_impl.hpp
+++ b/host/lib/usrp/usrp1/usrp1_impl.hpp
@@ -125,7 +125,6 @@ private:
UHD_PIMPL_DECL(io_impl) _io_impl;
void io_init(void);
void rx_stream_on_off(bool);
- void tx_stream_on_off(bool);
void handle_overrun(size_t);
//underrun and overrun poll intervals
diff --git a/host/tests/time_spec_test.cpp b/host/tests/time_spec_test.cpp
index 5ad782160..070392f93 100644
--- a/host/tests/time_spec_test.cpp
+++ b/host/tests/time_spec_test.cpp
@@ -18,6 +18,7 @@
#include <boost/test/unit_test.hpp>
#include <uhd/types/time_spec.hpp>
#include <boost/foreach.hpp>
+#include <boost/thread.hpp> //sleep
#include <iostream>
BOOST_AUTO_TEST_CASE(test_time_spec_compare){
@@ -59,3 +60,21 @@ BOOST_AUTO_TEST_CASE(test_time_spec_parts){
BOOST_CHECK_CLOSE(uhd::time_spec_t(-1.1).get_frac_secs(), -0.1, 0.001);
BOOST_CHECK_EQUAL(uhd::time_spec_t(-1.1).get_tick_count(100), -10);
}
+
+BOOST_AUTO_TEST_CASE(test_time_spec_get_system_time){
+ std::cout << "Testing time specification get system time..." << std::endl;
+
+ //Not really checking for high resolution timing here,
+ //just need to check that system time is minimally working.
+
+ uhd::time_spec_t start = uhd::time_spec_t::get_system_time();
+ boost::this_thread::sleep(boost::posix_time::milliseconds(500));
+ uhd::time_spec_t stop = uhd::time_spec_t::get_system_time();
+
+ uhd::time_spec_t diff = stop - start;
+ std::cout << "start: " << start.get_real_secs() << std::endl;
+ std::cout << "stop: " << stop.get_real_secs() << std::endl;
+ std::cout << "diff: " << diff.get_real_secs() << std::endl;
+ BOOST_CHECK(diff.get_real_secs() > 0); //assert positive
+ BOOST_CHECK(diff.get_real_secs() < 1.0); //assert under 1s
+}
diff --git a/host/utils/usrp_n2xx_net_burner.py b/host/utils/usrp_n2xx_net_burner.py
index 21327e0af..f52a2cbc1 100755
--- a/host/utils/usrp_n2xx_net_burner.py
+++ b/host/utils/usrp_n2xx_net_burner.py
@@ -18,6 +18,7 @@
# TODO: make it autodetect UHD devices
# TODO: you should probably watch sequence numbers
+# TODO: validate images in 1) size and 2) header content so you can't write a Justin Bieber MP3 to Flash
import optparse
import math
@@ -35,7 +36,7 @@ UDP_MAX_XFER_BYTES = 1024
UDP_TIMEOUT = 3
UDP_POLL_INTERVAL = 0.10 #in seconds
-USRP2_FW_PROTO_VERSION = 7
+USRP2_FW_PROTO_VERSION = 7 #should be unused after r6
#from bootloader_utils.h
@@ -144,6 +145,22 @@ def get_flash_info(ip):
return (memory_size_bytes, sector_size_bytes)
+
+def is_valid_fpga_image(fpga_image):
+ for i in range(0,63):
+ if ord(fpga_image[i]) == 0xFF:
+ continue
+ if ord(fpga_image[i]) == 0xAA and ord(fpga_image[i+1]) == 0x99:
+ return 1
+
+ return 0
+
+def is_valid_fw_image(fw_image):
+ for i in range(0,4):
+ if ord(fw_image[i]) != 0x0B:
+ return 0;
+
+ return 1
def burn_fw(ip, fw, fpga, reset, safe):
init_update(ip)
@@ -159,6 +176,15 @@ def burn_fw(ip, fw, fpga, reset, safe):
fpga_file = open(fpga, 'rb')
fpga_image = fpga_file.read()
+
+ if len(fpga_image) > FPGA_IMAGE_SIZE_BYTES:
+ print "Error: FPGA image file too large."
+ return 0
+
+ if not is_valid_fpga_image(fpga_image):
+ print "Error: Invalid FPGA image file."
+ return 0
+
erase_image(ip, image_location, FPGA_IMAGE_SIZE_BYTES)
write_image(ip, fpga_image, image_location)
verify_image(ip, fpga_image, image_location)
@@ -171,6 +197,15 @@ def burn_fw(ip, fw, fpga, reset, safe):
fw_file = open(fw, 'rb')
fw_image = fw_file.read()
+
+ if len(fw_image) > FW_IMAGE_SIZE_BYTES:
+ print "Error: Firmware image file too large."
+ return 0
+
+ if not is_valid_fw_image(fw_image):
+ print "Error: Invalid firmware image file."
+ return 0
+
erase_image(ip, image_location, FW_IMAGE_SIZE_BYTES)
write_image(ip, fw_image, image_location)
verify_image(ip, fw_image, image_location)
generated by cgit v1.2.3 (git 2.46.0) at 2025-11-04 04:00:38 +0000