PicoScope 7 Software
Available on Windows, Mac and Linux
Crash When Using Math Channel
Crash When Using Math Channel
Picoscope 6.14.23.5207
PicoScope 2204A
Hardware Version: 17
Driver Version: 3.0.40.2131
Create a math channel with the following equation: 60/((1/freq(A))*2) called RPM and a range of 0 to 1900. Don't enter a units long name or short name.
Select channel and click on OK to use it and PicoScope 6 crashes.
100% reproducible - happens every time.
Andy
PicoScope 2204A
Hardware Version: 17
Driver Version: 3.0.40.2131
Create a math channel with the following equation: 60/((1/freq(A))*2) called RPM and a range of 0 to 1900. Don't enter a units long name or short name.
Select channel and click on OK to use it and PicoScope 6 crashes.
100% reproducible - happens every time.
Andy
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Re: Crash When Using Math Channel
I would change the math channel
60/((1/freq(A))*2)
to
30*freq(A)
which is the same.
The reason you are getting the crash is that at the very start of the trace the frequency is unknown as there haven't been the crossing points to determine it, you will see no trace in the math channel plot. And if you ripple this through the math you get a divide by zero, which should fail gracefully so I will let the team know.
60/((1/freq(A))*2)
to
30*freq(A)
which is the same.
The reason you are getting the crash is that at the very start of the trace the frequency is unknown as there haven't been the crossing points to determine it, you will see no trace in the math channel plot. And if you ripple this through the math you get a divide by zero, which should fail gracefully so I will let the team know.
Martyn
Technical Support Manager
Technical Support Manager
Re: Crash When Using Math Channel
Once I added a name for the units (long and short) it went away. Andy