Setting Linear Output (SETLINOUT)

Spartan 3
1

I wanted to make sure I understand the SETLINOUT function before completing my design. I’m interfacing the linear output to a 3.3V analog input. If I read the instructions correctly, I should be able to set the linear output (SETLINOUT) to 3.300, and on reset the linear output will span 0 - 3.3V, which should correspond to the default setting of Lambda 0.68 to 1.36? Just want to make sure I don’t overload the input -

Thanks!

2

SETLINOUT temporarily sets the linear output to a specific voltage, this is useful for calibration. It will not do what you want.

The output will go above 3.3v, so your system needs to take that into account and be able to tolerate 5v. You can map the useful Lambda range to between 0 to 3.3v. Let me know what Lambda range you want and I will reply with the serial commands.

3

Ok thanks. Guess I’ll have to use an op amp so as not to load the output?