Why a array in write method fifo

[Alexis38]

Hi !

I am a beginner on LabVIEW FPGA, and I have a thing who intrigue me. I use a FIFO Write Method on my vi PC to interact with values of condition on my vi FPGA, the thing which intrigue me it's why the Write Method forces me to use a array on Data and why in the front panel it's the tenth element of the array which can change the value.

This problem many intrigues me, I will be grateful if someone can help me.

[crossrulz]

The host side of the DMA FIFO is always working with arrays.  This is because the FPGA can take the data off/put the data in a lot faster than the host can if one item at a time.

You can only change the 11th element because that is the index item you are showing.  You can always change the visible index and/or expand the array to show more elements.

[Alexis38]

Thank you for answer, when you speak about index you meaning this thing ?

[Alexis38]

I up this post, I reword my question : Why when I want change the value of my array it's only the 11th element which is take into account in the final result, because I can change the other values of the array but these values don't impact on the final result.