Iam writng a c code in Xilinx EDK 7.1 and am having problems with the fopen construct. Iam trying to read data from a text file, process it and then write it back. I read the documentation and found that xilinx provides read, write and open in xilfile. However, simply including the xilfile.h and checking the xilfile option in the software platform settings gives me errors. Any sample code or instructions on how to open, read and write a file in EDK would be helpful.