Table sending via FIFO for xy charts

HI, I have data of sendig of evil from the FPGA to the UI of the host.

I want to draw 6 signals. on two XY Gratz, so for each XY graphs, I have 3 plots.

I have samples every 100µs on the FPGA and combine them into an array of 6 elements representing the values of y.

I send this table via DMA FIFO to the host.

On the host VI I devices the x values grouped into a cluster and build an array of 3 plots.

When I run the VI. I have a parcel of signals, but how the plots change all the time in another plot. Its like every time another element of the array is read. Until the current chart, I had only two plots and then it worked fine.

I hope someone can help me more.

As an attachment, you can find the FPGA VI, VI and VI of the host realtime

A few comments:

Looks like your axis x are evenly spaced (by 0.001) so you do not have an xy graph, but simply a waveform graph, which should simplify things.

I'm confused why you do your x-axis for Graphics1 to 100000 items long but just try to graph 30000 items in the feed. Similarly, for your graphics currents and Hall signals, it seems that the x-axis are long 4000 elements (although I have not your time - axis.vi to check) and want to 20000 graph items. Curve of waveform switching simplifies this.

When generating your table of 100000 elements you can simply use (i + 1) * 0.001 as output auto-indexée instead of using shift registers.

Tags: NI Software

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