Hi,everybody.
I use USB6211 card. I want to output a series of analog voltages ,every at an external voltage rising edge. The external trigger is an analog one,not a TTL. I can't use it as a TTL trigger though it has only two voltage levels, because I have tried but it didn't work properly .Maybe the noise in it disturbs the rising-edge detect function of the DAQ card.
So,how can I use the external signal as a trigger,or how to use it as an analog trigger?By detecting a specific voltage level?If so,then how to do it?
Thanks.