I am facing a problem regarding Xilinx CPLD Readback. One of our engineers left the country who designed the system back in 2000 and is out of touch now. I have no idea where are the original design files and the JEDEC files.
However I do have two or 3 boards which have the working CPLD with the code I need. I have no experience with a readback feature. Can anyone help in this regard? I have a Xilinx PC4 cable and the ISE software. Can I use it to readback the Jedec file from the CPLD? I have read in the data sheet of XC9572 that it has data protection features. What will I get if the device is protected?
Need your expert opinion.