Xilinx JTAG Interface

In September 2002 we published a JTAG interface that was compatible with the programming software from Altera. Unfortunately, the software from Xilinx didn’t work in combination with this interface.The interface published here is compatible with the software from Xilinx, so you can use it to program their range of CPLDs and FPGAs.The circuit is very simple and consists of just two ICs and a handful of discrete components.