IO logic implementation using Analog Discovery 2

[bremenpl]

Hello there,

I am trying to accomplish a simple logic scenario with the Waveforms and Analog Discovery 2 device, although I don't know how. The scenario is:

1. I define 2 GPIO pish-pull outputs 0 and 1.
2. Once I set a state on IO 0, the state on IO 1 should be reversed (NOT logic).
3. This should possibly work in real time.

Is there a way to accomplish this with the given tools? I would appreciate all feedback!

 

[attila]

Hi @bremenpl

You could use a Script which at each run toggles the value:

StaticIO.Channel0.DIO0.value = !StaticIO.Channel0.DIO0.value;
StaticIO.Channel0.DIO1.value = !StaticIO.Channel0.DIO0.value;
StaticIO.config()

 

You could also use ROM logic.
Like here DIO 0 is controlled by StaticIO (or externally) and DIO 1 by the Patterns ROM logic based on DIO 0 value, with 70ns delay.

[bremenpl]

Hi @attila

Thank you for the answer. I am trying to follow your suggestion with the ROM logic, but cannot get it to work. 

My problem is that the DIO 1 always stays set to 1 and does not change when I change the DIO 0. What it could be that I am missing? I would appreciate your further feedback.

PS: Please also note that my ROM logic dialog looks a bit different than yours. This checkbox I am missing:

EDIT: Ok, I think it does work, but the DIO 1 state change delay is like 8 seconds... What could be the issue?

Edited May 10, 2022 by bremenpl

[attila]

Hi @bremenpl

Set the Frequency to maximum, 100MHz.
You have set it to 100mHz and with this the delay be up to 10sec.

[bremenpl]

4 minutes ago, attila said:

Hi @bremenpl

Set the Frequency to maximum, 100MHz.
You have set it to 100mHz and with this the delay be up to 10sec.

Ahh... Works, thanks!

[attila]

Hi @bremenpl

The state option is available in newer software version: