| Martin Petriska wrote: |
|
I switched from rev 3 to rev 4 board, but have some problems with triggering, board is now waiting for trigger (rev.3 is working). How to do in drs_exam.cpp for example triggering on Ch0 && CH1 ?
Software 4.0.0, windows version.
Here is old trigger initialisation:
b->EnableTrigger(0,1);
b->SetTriggerSource(0);
b->SetTriggerLevel(0.25, false);
b->SetTriggerDelayNs(0);
Btw. Is it possible to set up different trigger Levels for each channel ?
(If there is some interest here is my code in Qt, still aplha) http://sourceforge.net/p/qtpals/code
|
Sorry the late reply.
In V4, triggering has changed. You can trigger now on an OR or AND of channels. Therefore you have to supply a bitmask, where the 1st bit = CH1, 2nd bit = CH2 and so on. Have a look at the most recent drs_exam. It contains code:
/* use following lines to enable hardware trigger on CH1 at 50 mV positive edge */
if (b->GetBoardType() == 8) { // Evaluaiton Board V4
b->EnableTrigger(1, 0); // enable hardware trigger
b->SetTriggerSource(1<<0); // set CH1 as source
} else { // Evaluation Board V3
b->EnableTrigger(0, 1); // lemo off, analog trigger on
b->SetTriggerSource(0); // use CH1 as source
}
So if you want CH1 && CH2, you look at the source code of SetTriggerSource. It contains
// Set trigger configuration
// OR 0=CH1, 1=CH2, 2=CH3, 3=CH4, 4=EXT
// AND 8=CH1, 9=CH2, 10=CH3, 11=CH4, 12=EXT
So an AND between CH1 and CH2 needs a
b->SetTriggerSource(1<<8 | 1<<9);
Your code looks interesting. Do you have a screenshot or can you explain what it does? |