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florentbr / OWON-VDS1022

Unofficial release for the OWON VDS1022/I Oscilloscope
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New install problem - repeat of previous issue #2 #46

Closed techlobo closed 2 years ago

techlobo commented 2 years ago

I have just purchased an Owon VDS1022i and installed the software which was downloaded from the Owon site - this works OK in that I can see the USB device including the calibration trace when connected.

I had been reading Gyro's breakdown thread and was interested in trialing the improved interface that you have produced, so downloaded and installed the software from Github.

I appear to be experiencing the same issues as described in a previously closed issue (https://github.com/florentbr/OWON-VDS1022/issues/2).

Initially I had the sharing violation during install due to copying the msv*100.dll's which prevented the software being installed. This was overcome by manually copying in the later dll's. The install then completed successfully.

No mention of switching to 32-bit install was made during the install process, so I assume that the 64-bit version was installed.

The application starts but in Offline mode - if you click on the Offline 'button' it shows 'No available USB found >'

Switching back to the original Owon software shows successful synchronisation and display of the calibration signal.

I am running on Windows 10 Pro (64-bit), and initially had Java 17 installed.

As part of fault finding I uninstalled Java17 and installed Java SE 8, and then subsequently OJDK 11 - same issue in all cases - application starts but Offline, with no available USB found.

Starting the application in debug mode shows the following:

java.lang.NoClassDefFoundError: Could not initialize class ch.ntb.usb.LibusbJava at com.owon.uppersoft.vds.core.usb.CDevice.init(CDevice.java:191) at com.owon.uppersoft.vds.core.usb.CDevice.getDevices(CDevice.java:207) at com.owon.uppersoft.dso.source.usb.USBSourceManager.refreshUSBPort(USBSourceManager.java:79) at com.owon.uppersoft.dso.source.comm.detect.USBLoopChecker.checkUSBDevice(USBLoopChecker.java:74) at com.owon.uppersoft.dso.source.comm.USBDaemonHelper.onNotConnecting(USBDaemonHelper.java:35) at com.owon.uppersoft.vds.machine.InfiniteDaemonTiny0.onNotConnecting(InfiniteDaemonTiny0.java:30) at com.owon.uppersoft.dso.source.comm.Flow.run(Flow.java:75) at com.owon.uppersoft.dso.global.ControlAppsTiny$1.run(ControlAppsTiny.java:38)

Any ideas on how to proceed? Thanks.

techlobo commented 2 years ago

Got it working but had to install OJDK 8.

Subsequent upgrade to OJDK 11 then also worked, although it hadn't when first installed (without previous install of OJDK 8).

Not that it matters now that I know.

Now just need to investigate the possibilities ;-)

florentbr commented 2 years ago

It works with Java 8, 11 and 17 with both 32 and 64 bits versions. Running launch.cmd in the installed folder would have shown you exactly what the problem was. The issue you are describing is not related to Java, but with the dependent libraries, likely with the version of the Microsoft C Runtime Library.