Trigger both channels of ADC
Posted: Thu Nov 29, 2018 10:24 am
Hi,
I'm trying to acquire data from the ADC through an API in C.
My system works fine when I use a single channel but I would like to have a system that acquires data from both the channels when one of the two signals exceeds the triggering threshold.
The instruction:
Allows me to enable the triggering on one channel but if it is followed by the other instruction:
the previous one seems to be overwritten.
What i obtain using both those functions is that I can acquire data from both the channel only when CHB is triggered, but this is not what i want. I need to acquire data also if only CHA is triggered.
Is there a solution to this problem via software or do i necessary need to use an external trigger common for the two channels?
Thanks in advance for the help.
I'm trying to acquire data from the ADC through an API in C.
My system works fine when I use a single channel but I would like to have a system that acquires data from both the channels when one of the two signals exceeds the triggering threshold.
The instruction:
Code: Select all
rp_AcqSetTriggerSrc(RP_TRIG_SRC_CHA_PE);
Code: Select all
rp_AcqSetTriggerSrc(RP_TRIG_SRC_CHB_PE);
What i obtain using both those functions is that I can acquire data from both the channel only when CHB is triggered, but this is not what i want. I need to acquire data also if only CHA is triggered.
Is there a solution to this problem via software or do i necessary need to use an external trigger common for the two channels?
Thanks in advance for the help.