Hi Dom,
The application is receiving some weird data from you device - a value of
about 2 billion, which is supposed to be in the range -1 to +1. ?
Try doing a full calibration on the nanovna, including resetting the
calibration first and saving it to save slot 0. If it still fails after
that, there will have to be further investigation.
I hope this helps!
--
Rune / 5Q5R
On Thu, 3 Oct 2019, 08:35 Dom Baines M1KTA via Groups.Io, <dombaines=
[email protected]> wrote:
I cannot get this to work on startup using nanosaver and I get in the
logfile ...
2019-10-03 07:33:37,745 - NanoVNASaver - INFO - Startup...
2019-10-03 07:33:37,829 - NanoVNASaver.SweepWorker - INFO - Initializing
SweepWorker
2019-10-03 07:33:37,869 - NanoVNASaver.NanoVNASaver - INFO - Found NanoVNA
(0483 5740) on port /dev/ttyACM0
2019-10-03 07:33:37,869 - NanoVNASaver.NanoVNASaver - DEBUG - Building
user interface
2019-10-03 07:33:37,973 - NanoVNASaver.NanoVNASaver - DEBUG - Finished
building interface
2019-10-03 07:33:51,682 - NanoVNASaver.NanoVNASaver - INFO - Opening
serial port /dev/ttyACM0
2019-10-03 07:33:52,100 - NanoVNASaver.NanoVNASaver - INFO - info
Kernel: 4.0.0
Compiler: GCC 5.4.1 20160919
Architecture: ARMv6-M
Core Variant: Cortex-M0
Port Info: Preemption through NMI
Platform: STM32F072xB Entry Level Medium Density devices
Board: NanoVNA
Build time: Aug 2 2019 - 16:40:01
ch>
2019-10-03 07:33:52,265 - NanoVNASaver.NanoVNASaver - INFO - Read starting
frequency 100000 and end frequency 150000
2019-10-03 07:33:52,265 - NanoVNASaver.NanoVNASaver - DEBUG - Starting
initial sweep
2019-10-03 07:33:52,266 - NanoVNASaver.SweepWorker - INFO - Initializing
SweepWorker
2019-10-03 07:33:52,266 - NanoVNASaver.SweepWorker - INFO - 1000 sweeps
2019-10-03 07:33:52,266 - NanoVNASaver.SweepWorker - DEBUG - Parsed sweep
range as 100000 to 150000
2019-10-03 07:33:52,266 - NanoVNASaver.SweepWorker - DEBUG - Sweep segment
no 0
2019-10-03 07:33:52,267 - NanoVNASaver.SweepWorker - DEBUG - Setting sweep
range to 100000 to 100000
2019-10-03 07:33:52,568 - NanoVNASaver.SweepWorker - DEBUG - Reading
frequencies
2019-10-03 07:33:52,784 - NanoVNASaver.SweepWorker - DEBUG - Reading data 0
2019-10-03 07:33:52,994 - NanoVNASaver.SweepWorker - DEBUG - Read 101
values
2019-10-03 07:33:52,995 - NanoVNASaver.SweepWorker - WARNING - Got a
non-float data value: 2147483647.147483647 2147483647.147483647
(2147483647.147483647)
2019-10-03 07:33:52,995 - NanoVNASaver.SweepWorker - DEBUG - Re-reading
data 0
repeats until
2019-10-03 07:34:06,245 - NanoVNASaver.SweepWorker - CRITICAL - Tried and
failed to read data 0 20 times. Giving up.
2019-10-03 07:34:06,245 - NanoVNASaver.SweepWorker - DEBUG - Sweep segment
no 1
2019-10-03 07:34:06,251 - NanoVNASaver.SweepWorker - DEBUG - Stopping
sweeping as signalled
2019-10-03 07:34:06,258 - NanoVNASaver.SweepWorker - DEBUG - Resetting
NanoVNA sweep to full range: 100000 to 150000
2019-10-03 07:34:06,260 - NanoVNASaver.SweepWorker - DEBUG - Sending
"finished" signal
Anyone?
No RF squirted into it, default as delivered. Cannot see more than one
trace.
