Anyone knows of a programmable I/O card for a PC ?
I am lookinf for something that can be plugged into PCI slot and software programmed to generate arbitrary digital outputs such as Square-Wave clock or any Serial bit pattern.
thnx
A Xilinx/Altera PCI eval board perhaps?
Regards, Mark
Actually, there are such boards. They are called (oddly enough) arbitrary waveform generators. I think you can get analog and digital versions.
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The printer port is the classic low cost way to get data in or out of a PC. It may not be as fast as you want and/or you may not like the pauses from interrupts or the scheduler. With a bit of hacking, you can probably disable interrupts to fix that.
If your task is simple enough, the idea of using an FPGA or CPU on a demo board seems pretty good to me. Pick the board to meet your requirements. Or use one from your collection.
There are USB to GPIO gizmos. I don't have a URL handy. (I did a PCB for a USB to JTAG gizmo based on one.)
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I have found a I/O card by Geotest called GC5050. There are several small companies that make similar stuff, but I wanted to know whether anyone has experience (good/bad) using such cards to generate bit-streams.
I am limited on FPGAs and would prefer to have a Software driven dedicated I/O card that can be reading a simple text file containing the bit patterm ("1"s and "0"s) and outputting to its ports. Frequencies of interest are 1Mbps up to 100Mbps...
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