Hi all,
I'm playing with my first fn. generator and I have a question about it (I hope this is the proper section).
I want to simulate UART signal for some simple message for example "HELLO".
So, I transformed this message to this hex:
20002000200020003000200020003000200030003000 20003000200030002000200020003000200030003000 20002000200030003000200020003000200030003000 20002000200030003000200020003000200030003000 20003000300030003000200020003000200030003000
H E L L 0
(Hex file is normal with little endian format, here I just separated it like this to be easier to read it).
And then I saved that as RAF file on USB and loaded it as arbitrary function on DG1022Z.
So, I'm getting on my oscilloscope square signal, but I'm also getting negative voltage before my square pulse and after that. Why is that?
And also, I'm guessing that's the reason why I'm not able to decode this signal on my oscilloscope?