03-30-2021 03:39 AM
I am not able to see same value in indicator or array and Waveform graph.
I am measuring analog value in FPGA, storing in FIFO and calling it in host through DMA FIFO. I want to trigger some function when analog input goes above some threshold.
When I am reading analog samples in FPGA platform in indicator, maximum analog value it is showing -3V even I stored data in array in host target and exported in excel but maximum value is -3 but when I am seeing data in waveform it is -7V which is matching my actual input (I checked values @ analog input with scope, it is exactly same as waveform display). Why it is happening? Why I am not getting correct value in indicator and array. I change data type, range, representation, etc. In graph, multiplier is one and no change. I want this value to set trigger.
Please help me to understand this.
10-29-2021 08:25 AM
Hello,
In the screenshot, I see that you are pointing/highlighted to/the array "Data" array, and according to the graph below everything is expected.
In the array, I see the first element is -2 and in the graph, it starts from -2 as well.
So, my question is the following, have you checked all elements from the graph?