Ch2 trigger inverted after pcsgu250 big screen button fix

Instruments PC Oscilloscopes and Recorders
1

Hi guys,

[color=#FF0000]Well DARN![/color]

The Ch2 trigger is inverted, Ch1 works great. Move the trigger bar up or down on Ch 1 and the X and Y cursors intersect on the trace. BUT do the same for Ch2 and it is inverted. The cursors NEVER intersect the trace (except at ZERO crossing) ???

A fix for this would greatly be appreciated (unless there’s a default setting for this).

Thanx in advance,

Greg

2

Indeed, this was a “quick fix”. - Sorry about too short testing period…
I made a modification to display the trigger level mark in math mode too in this software version.
There was this “side effect” - sorry. Now fixed.
Here is the link to download the updated version: box.net/shared/opdkibn6zh

3

[quote=“VEL255”]Indeed, this was a “quick fix”. - Sorry about too short testing period…
I made a modification to display the trigger level mark in math mode too in this software version.
There was this “side effect” - sorry. Now fixed.
Here is the link to download the updated version: box.net/shared/opdkibn6zh[/quote]

HI,

OK great, now that works. I might be crazy, but the CH1+Ch2 in DC coupling seems to float together like the sum shows like AC coupled and floats to ground. However, I used no input on Ch1, Generator on Ch2 and Ch1+Ch2 not seem to work but then again it’s not a real input on Ch1 just no signal. Then I tried GND instead of ‘no’ signal … same thing. In fact Ch1+Ch2, Ch1-Ch2 both don’t seem quite right.

I should try real signal inputs, but still … ???

Greg

4

The math mode trace is always positioned in the middle (in vertical direction) of the screen. There is no Y-position adjustment for the math trace. Maybe this is the problem you noticed…

In this thread there are some example screenshots: viewtopic.php?f=10&t=4229
Do you get similar with the real signals… ?

5

Some improvements made to the math mode:

  • Now the math trace is immediately displayed if math mode is changed in history view.
  • Also the trace it is immediately displayed in case when saved data is opened from a file.

Here is the link to download the updated version: box.net/shared/opdkibn6zh

6

Hello,

Thank you the trigger issue is resolved and thanks for the reference to another post regarding the MATH.

These are my captures. They look better in ‘bright screen’ but I was too lazy to do-over.






…and so many more. Thanks for all of your help,

Greg