Haasoscope
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drandyhaas
Could not read firmware version - Exiting!
I want to launch HaasoscopeQt.py
OS:Arch linux, python:3.10.2, conda environment
$python ./HaasoscopeQt.py Loading HaasoscopeTrigLibQt.py Argument List: ['./HaasoscopeQt.py'] num main ADC and max10adc bytes for all boards = 2048 and 0 Construction done rate theoretically 35.95 Hz over serial /dev/ttyUSB0 : USB2.0-Serial : USB VID:PID=1A86:7523 LOCATION=1-1.2.2 connected serial to /dev/ttyUSB0 , timeout 0.37014933333333333 seconds got firmwareversion 0 for board 0 in 100.34 ms Could not read firmware version - Exiting!
expected launch haasoscope software.
I have tried flashing latest firmware, updating libraries, changing python env, rebooting computer, resetting haasoscope, unplugging probes, rebooting haasoscope, reinstalling all libraries, changing udev rules. I also modified the HaasoscopeLibQt.py to rule out the error: however it then throws the error that it cant connect via usb?
Could anyone please advise me how I can resolve or at least troubleshoot this? Thanks
What hardware version of the board do you have? v8 or v9? I assume you are running this from the master branch of the git repository? And it is up to date (git pull)?
Yes: Board harware version: v9. Running from master branch. git pulled etc.
I've tried changing usb cables, usb ports, computers, operating systems. On occasion it launches but the cause therein is not readily verifiable.
Try pressing down on the ch340 chip near the USB port while booting up. One other user found that it had a poor solder connection.
It can also be the soldering of the 50MHz oscillator near the Fpga. Try pressing down on it. Or reflow it if you know how.
Just tried this. The failure generally triggers when a secondary bnc probe is attached//signal collected. I don't know if there exists a causal link just yet.
Even if the other end of the probe is not attached to anything? That would be weird. I could imagine big problems if the ground clip of the attached probe is put on something with a voltage significantly different from the ground of the USB connection...