Waveform generator using PC

[viks]

Hi guys,

I have one PCI I/O card from advantech.
But driver with card does not let me generate waveform as I want.

Now I am trying to access hardware directly from my program without any driver.

How can I do it ?

I know VC++ and VB.
Which one will be better to do this task?

Where shold I start ?
What else I need ?

Please guide me through this.
Thanks,

 

[swingbyte]

Use the driver, use VC++. I don't know this card but does it have dma? Store the waveform in a buffer and read it out at the frequency you want. Or set up a multimedia timer callback function and loop through the array outputing to card each time .
You can also use the DirectSound library to produce audio waveforms using a sound card.

Swingbyte