Can I use LabVIEW to load data directly into system memory? The serial card I'm using isn't supported by NI nor does VISA recognize it. I'm using a Win32 function to read the data from the card and now I want it to go directly to system memory.

[bc2007]

Can I use LabVIEW to load data directly into system memory from a VI? The serial card I'm using isn't supported by NI nor does VISA recognize it. I'm using a Call Library function to read the data from the card and now I want it to go directly to system memory.

The data is being received at 1Mbps.

Thanks

[SergKr]

1.You will most likely crash your system trying to write meg's/sec of data to system memory. LabVIEW has it's own memory manager and manages data for you. If you getting data to LabVIEW, I hope for the processinfg purposes. You didn't mentioned what do you want to do with that heap of data.

2.You probably can access your data from your card using VISA if you know card's registers and memory i/o block as BIOS assigning this block to your card. Search through VISA documentation and NI site how to do that.

[smercurio_fc]

Two questions:

One, if it's a serial card, then presumably it gives you more serial ports, like COM3, COM4, etc. If so, VISA would see the COM ports, and not the card directly. The drivers for the card should make it so that you see the extra serial ports from the OS. If you don't see the extra COM ports from VISA, then it sounds like the drivers for the card are not installed properly. Do the extra COM ports show up in Device Manager?

Two, you said that you're using a Call Library function to get the data and you want to put it into system memory. Errr.... you just read the data and you have it in memory by definition. Are you saying you need a way to parse the data so it shows up on a graph or something?