PicoScope 7 Software
Available on Windows, Mac and Linux
Can't use any python librairy
Can't use any python librairy
Hi,
I am a happy (new) user of a picoscope 6407.
I have installed the firmware on linux and it works great with the picoscope software.
However, when I use a python lib, it crashes at the initialization step.
I tried with pico-python (installed from a pip repository) and I get a PICO_COUPLING_NOT_SUPPORTED at this line
I also tried the official librairy (picosdk-python-wrappers) and I get the following exception:
at this line:
I tried very small DC values but it always raises the same exception.
I have the feeling that the errors I get with the two librairies are linked but I can't tell what I am doing wrong.
Could anybody help me with this?
I am a happy (new) user of a picoscope 6407.
I have installed the firmware on linux and it works great with the picoscope software.
However, when I use a python lib, it crashes at the initialization step.
I tried with pico-python (installed from a pip repository) and I get a PICO_COUPLING_NOT_SUPPORTED at this line
Code: Select all
channelRange = ps.setChannel('A', 'DC', waveformAmplitude, 0.0, enabled=True, BWLimited=False)I also tried the official librairy (picosdk-python-wrappers) and I get the following exception:
Code: Select all
raise ArgumentOutOfRangeError("%s device doesn't support a range as wide as %sV" % (self.name, signal_peak))Code: Select all
channel_configs = [ChannelConfig('B', True, 'DC', 0.1)]I have the feeling that the errors I get with the two librairies are linked but I can't tell what I am doing wrong.
Could anybody help me with this?
Re: Can't use any python librairy
Hi
Are you able to post the full code that you're using from the python-wrappers including the settings you're using for the scope?
Have you checked in the programmer's guide that you're passing values that are correct for the 6407?
https://www.picotech.com/download/manua ... -guide.pdf
Neil
Are you able to post the full code that you're using from the python-wrappers including the settings you're using for the scope?
Have you checked in the programmer's guide that you're passing values that are correct for the 6407?
https://www.picotech.com/download/manua ... -guide.pdf
Neil
Neil
Technical Support Engineer
Technical Support Engineer
Re: Can't use any python librairy
Hi,
Thank you for your answer.
According to the programmer's guide, the voltage range should be +- 100mV, and it should be set to DC, which is what I think I am doing in the code I am testing.
For picosdk-python-wrappers I try to run the code provided in examples (block.py): https://pastebin.com/Pt0DXXqT
Thank you for your answer.
According to the programmer's guide, the voltage range should be +- 100mV, and it should be set to DC, which is what I think I am doing in the code I am testing.
For picosdk-python-wrappers I try to run the code provided in examples (block.py): https://pastebin.com/Pt0DXXqT
-
erikiverson
- Newbie
- Posts: 0
- Joined: Fri Jun 04, 2021 5:26 pm
Re: Can't use any python librairy
I have this same problem. It seems like the range is supposed to be specified in an enum, in ps6000.py
Where, in constants.py, the make_enum function is defined.
I tried using the enum, and also passing integers for the range in the ChannelConfig function, and also just leaving them blank since the function says it is optional. Nothing worked.
Code: Select all
ps6000.PS6000_RANGE = make_enum([
"PS6000A_10MV",
"PS6000_20MV",
"PS6000_50MV",
"PS6000_100MV",
"PS6000_200MV",
"PS6000_500MV",
"PS6000_1V",
"PS6000_2V",
"PS6000_5V",
"PS6000_10V",
"PS6000_20V",
"PS6000_50V",
"PS6000_MAX_RANGES",
])I tried using the enum, and also passing integers for the range in the ChannelConfig function, and also just leaving them blank since the function says it is optional. Nothing worked.