Do you know how to read/write from Compact flash from an FPGA board ?
Last week, I was trying to do read/write operations to compact flash using FPGA. As usual, it was very difficult to get good documentation to do this.
A summary of the procedure to access files in a Xilinx FPGA board(ML605) is as follows:
1. Created an XPS project (Microblaze based) and added compact flash IP to the design
2. Generated bitstream and exported the design to SDK
3. Created a new software project - added the Libxil FAT system library in MSS project settings
4. Wrote a C code to open a file, read/write file ( by reading LibXil documentation)
5. Increase the stack and heap size of the application (to allow dynamic memory allocation) and store application in DDR memory by generating linker script.
Note : There is no change in jumper settings (for ML605) and default files in compact flash are not to be modified.
Check out the following links for more details:
