Analog Discovery 2 - Control GPIO pins in Waveform: Network mode to set gain on external amplifier stage?

[Jofs]

Hi

I'm a happy owner of an Analog Discovery 2. I bought it mainly to do frequency response measurements on power supplies with the Network function. It happens that the dynamic range isn't always sufficient so I would like to design a new BNC connector board with a programmable gain stage in the same fashion as the Impedance Analyzer for Analog Discovery board is connected and controlled via the GPIO. Is it possible within the Waveform software to include logic that will set the gpio pins (change the gain) depending on the previously measured signal level without having to write a new Network function equivalent?

If not is there something in the pipeline for a future software version?

Regards
Joachim

[attila]

Hi @Jofs

You could use the Script tool to automatically adjust the gain on your custom circuit or create custom application/script using the WF SDK which has NA functions.

The Table or Custom mode of Wavegen amplitude control in the NA could be helpful to you.