Realtime Waveform Acquisition LeCroy wavesurfer 44xs

[aelray]

ok, thank you all for the help so far.

I took the  "Edge Triggered Acquisition" example and added the "Configure Sample Mode" and put it on Roll mode. When running the application i get the error message: "<ERR> Selected sample mode is not available. Possible causes are:  incompatible model, sample rate or other horizontal system configuration."

the model should be compatible, right? so it must be caused by sample rate or other horizontal system configuration. Where can I see which settings are working and where can I adjust them?

[alanjb]

Hi aelray,

Roll mode can be configured only when the scope is setup for long acquisitions.  Go to Timebase > Horizontal after you get the error message.  Is the "Roll" button greyed out? 

You should call "Configure Timebase" before calling Configure Sample Mode (which I should have mentioned before!)

Best Regards,

Alan

[aelray]

hi,

the "Roll" button was greyed out. With a bigger timebase it gets ungreyed.

So my hopefully last question is, that with the timebase configuration I  can set the time the measurement should take, right? And also I should adjust the "timeout" value accordingly, right?

thanks once again

aelray

[aelray]

ok, now i understand what timebase means, it's not for configuring the time of measurement ;). But now, after choosing a bigger timebase i got the problem that i get a waveform as result even if the measured waveform did not reach the trigger value...

[alanjb]

Hi aelray,

Yes, Configure Timebase sets the scopes time per division and memory depth for the acquisition.  I don't understand the problem you describe below, however.  Can you email me your program, along with a screenshot?

Thanks,

Alan