picoscope 6, Raspberry pi 4, for signal generator.

JRH · Post by **JRH** » Wed Dec 06, 2023 4:45 pm

I have installed picolog6 on a 32-bit raspbian Bullseye OS. I have a Picoscope 2204a.

picolog6 opens and starts, but as soon as it connects to the picoscope (I hear hear the relay switch click in the picoscope) the window goes blank and the window title changes from "picolog-capture-devices" to "desktop-entry.html". this is less important than SDK as from what I understand, Picolog7 does not work on raspberry pi, I wont be able to use signal generator through Picolog6, and will need SDK. But I thought it was worth mentioning.

I followed the instructions on: viewtopic.php?t=42586

I opened the example for Picoscope 2000 signal generator in thonny, and I get the following messages (attached screenshot and text below). Can you help with this ?

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>>> %Run ps2000aSigGen.py
Traceback (most recent call last):
File "/home/user/Documents/picosdk-python-wrappers-master/ps2000aExamples/ps2000aSigGen.py", line 12, in
from picosdk.ps2000a import ps2000a as ps
File "", line 1007, in _find_and_load
File "", line 986, in _find_and_load_unlocked
File "", line 664, in _load_unlocked
File "", line 627, in _load_backward_compatible
File "", line 259, in load_module
File "/usr/local/lib/python3.9/dist-packages/picosdk-1.0-py3.9.egg/picosdk/ps2000a.py", line 20, in
ps2000a = Ps2000alib()
File "/usr/local/lib/python3.9/dist-packages/picosdk-1.0-py3.9.egg/picosdk/ps2000a.py", line 17, in __init__
super(Ps2000alib, self).__init__("ps2000a")
File "/usr/local/lib/python3.9/dist-packages/picosdk-1.0-py3.9.egg/picosdk/library.py", line 49, in __init__
self._clib = self._load()
File "/usr/local/lib/python3.9/dist-packages/picosdk-1.0-py3.9.egg/picosdk/library.py", line 71, in _load
raise CannotFindPicoSDKError("PicoSDK (%s) not found, check %s" % (self.name, env_var_name))
picosdk.errors.CannotFindPicoSDKError: PicoSDK (ps2000a) not found, check LD_LIBRARY_PATH
>>>
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