Dynamic output signal control

[QuickNick]

hi

i am using a PCI-6259 card with Measurement Studio 2003 and NIDAQ 7.4

I am trying to change an analog output signal on the fly, e.g. using a slider.
My first attempt was using the 'WriteMultiSampleAsync' -function and installing an eventhandler.

So when i put my write-function into the 'OnEvent'-function of my event handler i get an error
message telling me that i got too less memory. Anyone has an idea how i can solve this problem?
I think i'll have to use multiple buffers, but am not sure how this exactly works.


Thx

Markus

[Ingo_Schumacher]

Hello Markus,

the examples that are installed with Measurement Studio which should be enough to give you an idea how to create such an application. If you are looking for a way to change an analog output with a slider, it is actually pretty easy. As log as you dont want to do a waveform output you dont need buffering at all.
If you write a value to an analog output, this voltage will stay there until you write a new value or the PC is powered down. That is why it is enough to work with single point AO in this application.
Pleas have a look at the "AO Point example". It will show you the principle.

[QuickNick]

Thank you Ingo,

i figured the problem out meanwhile.

the next days and weeks when i'm going to expand my application to waveform output
i'll probably write again ^^

regards

Markus