What does the 4x4k output buffer do on the Discovery 2?

[maling]

Configuration index 5 (or 6 as listed in the WaveForms GUI with 1-based index) is described as a 2x8k scope buffer and a 4x4k wavegen buffer. It looks like it uses some buffer capacity that would otherwise be given to digital pattern generation (e.g. in configuration 0 alias 1).

What is the 4x4k buffer? Can this be configured to act as a 2x8k output buffer?

Thanks in advance!

Edited Saturday at 03:47 AM by maling

[jostikas]

I'm assuming you have an Analog Discovery 2 (because that has such a config as #6).

In short: it enables you to use the VP and VN supplies (usually available under the "Supplies" instrument) as slow AWGs. As far as I can tell: no, you can't reassign that to the normal AWG - as I understand it, the "Configurations" are fixed bitstreams that are loaded into the onboard FPGA that controls the instruments, and that determines the mapping for the onboard memory.

In the GUI, if you hover over the "Others" field in the configuration selector, it expands to show the "quirky" parts of the configuration:

[attila]

Hi @maling

See the Help tab: