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3.1i Foundation ISE, Project Navigator - "Exit Code 0001" caused after changing constraints.
Keywords: Project Navigator, ISE, 0001, XST, VHDL
An "Exit Code 0001" is caused by the following sequence of steps:
1. Implement the design.
2. Open the Constraints Editor and makes a valid change to the constraints.
3. Save and Exit Constraints Editor.
4. Re-implement the design with the new constraints.
1 This problem is fixed in the latest 3.1i Service Pack available at:
http://support.xilinx.com/support/techsup/sw_updates. The first
service pack containing the fix is 3.1i Service Pack 6.
2 If Service Pack 6 has not been installed the workaround is to run XST
via command line. The following two environment variables need to be set:
Then, from the project directory in the DOS prompt, you can run:
xst -ifn filename.xst
At this point the design can be run through Design Manager.