Impedance Analyzer - No output
Posted: Sun Nov 06, 2022 2:05 pm
I'm having a problem with Impedance Analyzer not producing any output signal. The impedance plots produced are hence just erratic spurious readings.
I've checked the RP HW is behaving and that the external shunt resistor and loudspeaker are correctly connected. I did this by running RP in Oscilloscope + SIg Gen mode and I get the expected signals across the frequency range of interest. I am also monitoring the Output of the RP using a 2nd Oscilloscope. However, when I run the Impedance Analyzer application I see no output signal.
I wondered if updating from latest stable to latest beta of the RP OS would help, it made no difference to this issue.
My RP HW:-
Board model: 1.0
Ecosystem: 1.04-28-93661995d
Linux: 1.08
The app installed from Application marketplace (http://bazaar.redpitaya.com/) via link on RP:-
Impedance Analyzer (0.94-590)
Circuit setup and app settings as per https://red-pitaya-active-learning.read ... ofile.html and links on that page.
I also wondered if it was something daft like the Impedance analyzer output is on o/p 2 not o/p 1 and checked, it is not there either.
Is anyone having any luck using this and if so how did you get it working?
I've checked the RP HW is behaving and that the external shunt resistor and loudspeaker are correctly connected. I did this by running RP in Oscilloscope + SIg Gen mode and I get the expected signals across the frequency range of interest. I am also monitoring the Output of the RP using a 2nd Oscilloscope. However, when I run the Impedance Analyzer application I see no output signal.
I wondered if updating from latest stable to latest beta of the RP OS would help, it made no difference to this issue.
My RP HW:-
Board model: 1.0
Ecosystem: 1.04-28-93661995d
Linux: 1.08
The app installed from Application marketplace (http://bazaar.redpitaya.com/) via link on RP:-
Impedance Analyzer (0.94-590)
Circuit setup and app settings as per https://red-pitaya-active-learning.read ... ofile.html and links on that page.
I also wondered if it was something daft like the Impedance analyzer output is on o/p 2 not o/p 1 and checked, it is not there either.
Is anyone having any luck using this and if so how did you get it working?