Acquire data with a FPGA card with a SCB-68 68 Pin

[Emmanuelle]

Hello,

I would like to acquire two TTL signals using DIGITAL inpout of the FPGA data acquisition card. I have a SCB-68 to plug in the signal.

I have the impression that the SCB-68 is not recognized by the computer, I don't how I can be certain of this problem, and how I can solve it. 

Could you help me.

Thanks in advance.

Emmanuelle

[AnalogKid2DigitalMan]

The SCB-68 is just a connector block with no electronics, thus the PC will not detect it. However, the PC should recognize what hardware you have installed.

[Emmanuelle]

Hello,

I have done a simply program to be sure that I manage to have a digital outpout. I plugged a voltmeter at the outpout of the channel of the SCB-68 to check it worked. But it didn't work. I used the connector 1 (DIO). I was aware that on the VI, I had only the connector 0 to add the DIO0 (FPGA I/O).  I think that can explain the fact my program doesn't work. Should I be right, what can I do to make appear the connector 1 I need.

Thanks,

Emmanuelle

[Emmanuelle]

It's ok, I've found the answer of my problem....

Emmanuelle

[Emmanuelle]

hello,

I have only 3 channels for the DMA FIFO. Is it possible to add others? If yes, how can I do that?

thanks,

Emmanuelle

[Efosa O.]

Emmanuelle Hello.

Each FPGA target has a fixed number of DMA channels available for transferring data from the target to the host computer, in your case it looks like the maximum amount of channels you have is 3. You can use multiple FIFO Read and FIFO Write functions to read and write to the same DMA FIFO.

However, to answer your question, there is no way to add an extra DMA channel to your FPGA target.

Please post if you have further questions.

Efosa O.
NIAE