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LPC1768 won't "Run to start of main" ULink2

Perdrix

I've got an LPC1768 project that was opening under the ULink2 debugger to "start of main" just fine, until a few recent changes where I changed from using the SystemTickTImer to using TImer0 for a 1ms interrupt.  That code of course is well past the start of main().

Now if if run under the Ulink2 debugger the code only runs after I press F5 THREE times and I have to add my own breakpoint just after the start of main().

How can I get back the normal behaviour?????

Thanks

David

Parents
  • 0 in reply to rkopsch

    I worked it out - I had removed code for redirecting STDOUT and thought that as I'd removed all the printf statements from my code that it was no longer needed.   No such luck :(    Deep in the bowels of the CRT (in _printf_fp_hex.o) an SWI instruction was issued.   The result was of course a loop at SWI_Handler.

    Restoring an fputc intercept solved the problem.  No clear why I needed that but if it works...

Reply
  • 0 in reply to rkopsch

    I worked it out - I had removed code for redirecting STDOUT and thought that as I'd removed all the printf statements from my code that it was no longer needed.   No such luck :(    Deep in the bowels of the CRT (in _printf_fp_hex.o) an SWI instruction was issued.   The result was of course a loop at SWI_Handler.

    Restoring an fputc intercept solved the problem.  No clear why I needed that but if it works...

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