On Tue, 16 Aug 2022 at 19:45, Todd Zuercher <[email protected]> wrote:
> I'm trying to use Siggen to generate a square wave form and output it to the > analog output of a Mesa 7i77. This is for tuning the current loop on a servo > drive. I set up a simple config to do this, but with the oscilloscope hooked > up to the analog output of the 7i77, what we are seeing is not quite the > square wave I was expecting. With the Siggen set for a 100hz signal we are > seeing +1v for about 1ms then 0v for about 4ms then -1v for 1ms then 0v for > 4ms, It isn't quite the square wave I was shooting for. Where did I go > wrong? What does Halscope think that the output is? Is the Oscilloscope set up as AC-coupled or DC? Bsically it sounds like the scope is displaying the derivative of the square wave, which could be coupling or possibly the probes? -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
