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I have bodged an Exar UART onto a DSTINIs400 board & need to use INT0 with it. As a starting point pressing a push button to create an INT to test a handler gets executed would be nice before getting into writing various UART routines. When I compile my C code, I get the warning L30: memory space overlap from c:200003H to c:200007H I'm not sure why this has happened & how do I get it working?? I am using the mon390 code to debug. Help! Thanks Trevor
Looks like there is already code at your interrupt vector location. Take a look to the MAP file of your project to figure out where the code space is already used.