If you expect the signal to swing between 0 and +5V then set the trigger level to somewhere around 2.5V.
As with input coupling the trigger coupling can usually be set to either AC or DC. Perhaps...
I have it set at 4.9V along the right edge of the screen. That's exactly the thing that I haven't totally figured out yet. Sometimes it's there, sometimes it's not.
If you don't know, read up on what Auto/Normal/Single mode actually does. Also, there's no indication of trigger level on the scope screen, where do you have that set?
I'd be more worried by the fact that signal swings negative and not positive :-)
Don't worry though, it looks like you have the input coupling set to AC on the scope. Set it to DC and try again.
Re: Replacing 16F628A with 16F1827 - need help, please !
Thank you ! Just tried ... What could cause these two errors?
fratello Today, 07:00