Real time PCI acquisition and direct transfert to optical shared memory

[raoufmoussa]

hello, 

want to acquire analogue signals using a PCI card and then share the data through the network using a pci shared memory with optical ring connection. 

however the acquisition and the data transfer must be real-time determinism, 

I want to use general purpose processor with a windows system, 

the question: is there a way to assure the data being acquired to be sent directly to the shared memory using DMA or other means without interrupting the processor each time, 

thank you'll!

[nanocyte · Accepted solution]

One way to be sure would be to use an FPGA card with on board DRAM. Then it's dedicated memory and there's no concerns about the CPU's memory access.

If your memory use isn't too extreme, it might be possible that other targets have enough block memory to buffer the data on the FPGA