Fix USRP2 MIMO synchronization in benchmark_rate.
When synchronizing N2XXs connected with a MIMO cable, only the master's
time needs to be set; the slave will be synchronized automatically.
Currently, calling set_time_unknown_pps will attempt to synchronize the
slave on the next PPS, which can cause problems since the MIMO cable
doesn't propogate a PPS signal.
There are cases when the first sample after an overrun has an earlier
timestamp than the timestamp of the error package. In this case,
benchmark_rate would incorrectly determine the number of dropped
samples, causing it to display a very large number.
This is not a fix of the negative offset issue, but will avoid
displaying overly pessimistic numbers dropped samples.
An error message is still displayed when this happens, which aids in
debugging this situation.
When too many overruns, underruns, or dropped packets are detected,
benchmark_rate will now return EXIT_FAILURE. This allows to use it for
automated tests.
The thresholds are set very high by default, but can be manually tuned
by using new command line arguments:
$ benchmark_rate --overrun-threshold 0 # Fail on any number of Os
- Messages are all timestamped, enables better understanding of the
output log
- Less usage of Boost
- More stats (differentiate between RX and TX timeouts and sequence
errors)
The previous version (using atomic variables) was fine, but didn't work
with all the Boost versions we currently support on the 3.9.X release
line.
This is a slightly less safe, but still sufficient example.
The previous version (using atomic variables) was fine, but didn't work
with all the Boost versions we currently support on the 3.9.X release
line.
This is a slightly less safe, but still sufficient example.
* OctoClock can communicate with UHD over Ethernet
* Can read NMEA strings from GPSDO and send to host
* Added multi_usrp_clock class for clock devices
* uhd::device can now filter to return only USRP devices or clock devices
* New OctoClock bootloader can accept firmware download over Ethernet
* Added octoclock_burn_eeprom,octoclock_firmware_burner utilities
* Added test_clock_synch example to show clock API
* The transmit streamer gives access to the async msg queue.
* The receive streamer gives access to the issue stream cmd.
* Supporting usrp implementation files updated.
* Example applications updated to use this API.
spi and i2c are done w/ polling, but this is ok,
the transactions always complete by the first check
a gpio is used to wake up poll() and check for messages.
messages are read using poke32, unpacked, and enqueued.
