Help to update this DAQmx code

[Dejun]

Hello Ravens,

I ran your code, having same following problem as my code: 

At beginning the acquired data start from zero, and gradually increase. When the data are still within 1.0, the range of Y-axis is (-1,1), so the data stacked into a very shallow region since the Y-axis is not auto-scaled. Only when the data are above 1.0 does the Y-axis begin to auto-scale.

[RavensFan]

I saw that, too, but didn't recognize that as your problem.

Try this.  Right click on your waveform chart and choose visible items/scale legend.  Click on the Y.YY button and set it to a higher number of digits of precision.  When I did that for 2 digits, the Y scale would autoscale to finer increments than 1's

[Dejun]

Problem solved, Super!

Thank you so much, Ravens !!!

-Dejun