Does anybody have the schematic for the Xilinx Parallel Cable IV???
There have been some changes because it now supports ALL Xilinx FPGA's.
It can support 1,5-5V supply voltage.
There have been some schematics for the Xilinx Parallel Cable III, but this doesn't work with the Spartan II.
I think the schematic doesn't help very much: there's a CPLD (XCR3256XL) inside. You'd also need the program....
Parallel Cable III only contains some level shifters.