Triggering analog output with digital edges

[nerdpol]

Hi.

I have a Ni DAQPad-6259 (USB Board) and use c++ to control it.

A external digital tigger is connected to one of the digital inputs (eg PFI1).

i need two states of the analog output: eg. -0.1V and 2V. These two states have to be triggered by the external signal.

That means if i have a rising edge (or high signal) the analog state should be 2V and if it´s a falling edge (or low signal) the analog state shoul be -0.1V.

How can i programm that? And is it posible that the board does this switching by itself and not the pc-software?

thank you.

navid

[RamonaL]

Hi Navid,

well, thats quite a question. I dont think you can realize it by hardware, so you would have to programm it in the software. Here of course the question is which kind of delay is still acceptable for you.

Regards, RMathews