Can i programme non-xilinx fpga through xilinx impact tool & by using xilinx parrellel four cable?

Using their cable? Sure, you just need software to drive it. You might have to operate it in a slower bit bang sort of mode.

Using impact? maybe, but it won't be easy. If you can get the data and algorithm into a generic form that impact will execute, such as maybe an SVF, you might be able to do it that way.

Keep in mind that programming an FPGA is basically requires

1) a few bits interface to a processor, with suitable voltage level translation, this might be as simple as a parallel port and some resistors 2) software that can twiddle those bits the right way

Neither is all that complicated if you can get your hands on the information. Both altera and actel for example provide example software for configuring their devices via a file format that their tools will export (jam/stp)

You should be able to if you have an SVF or similar file.

Then Impact is just playing back stuff rather than knowing anything special about the device.

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Daniel O'Connor software and network engineer
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