fpga

[pooj]

Urgent.......Please help me.

I am using DMA FIFO for writing the aquired sound input data on FPGA .While doing this I used DMA FIFO write method.When I run it with option 'Execute vi on -->Development computer with simulated IO' ,it hangs at very first block of FIFO write .I am not getting where exactly it is drawning? Or i missed some step in between.I have attached the Vi hereby for reference.

[Thoric]

If you are using the FPGA Module Simulation Test Bench you need to create handling code to support the various features you have implemented. I'm not sure that the DMA features can be simulated, I've not tried this, but either way have you read the LabVIEW help on this? http://zone.ni.com/reference/en-XX/help/371599H-01/lvfpgahelp/running_fpga_vi_on_emulator/

[RedAG]

Can you rephrase the question please?

Are you trying to "write" the data you acquired through your FPGA to a HOST?

When you are using the "Execute vi on the Development computer with simulated IO" method, you miss out on certain advantages such as timing.

This could potentially affect you later depending on the development of your program.

[pooj]

Thanks Thoric.I am not using the simulation modue you said instead I am making it to get simulated on the development PC itself.I am also wondering if I can simulate the DMA feature (as it is the hardware feature so how we can simulate it????) .But if its not how I can bypass it ?what is the way for it?

If you can shed some light on this it will be much helpful for me.

I have gone through the link you gave above.But there no clear mention bout the FPGA components.

😞

Good Day.

Pooja

[pooj]

Hello RedAG,

Yes ,I am trying to write the data on FPGA DMA which I acquired through microphone of PC (from HOST to FPGA).

Currently I am looking out the adv/disadv of timing.I am more focused on the correct output of my algorithm.

Once I am done with this I wil ook into these issues.

Good Day.

Thanks and Regards,

Pooja

[RedAG]

Hello Pooja,

DMA simulation? DMA transfers your data. The simulation will for teh inputs you want to generate.

[Thoric]

Try reading through Section 3 of the NI CompactRIO Developers Guide