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CortexM1 processor

Veeraraghavan Ramamurthy

I get the following error when I do build in microvision. The project uses a CortexM1 processor on Altera Cycloneiii FPGA.

The Error:
.\obj\ITCM.axf: Error: L6200E: Symbol ferror multiply defined (by iostubs.o and retarget.o).

The code causing the error:
/* fopen test prg*/

void tst_fopen (void) {
   FILE *fin;

   fin = fopen ("Test.txt","r");

   if (fin == NULL) {
      printf ("File not found!\n");
   }
   else {
      fclose (fin);
   }

}


Iam a Hardware Enginner, not much in the C programming., I was wondering if any one could help me on this issue.

Thanks,
Veeraraghavan.R

Parents
  • 0

    Unfortunately Keil/ARM's use of "multiply" like that is very clumsy - to be polite!

    What the message is telling you is that the symbol "ferror" has multiple definitions within your program;
    In fact, the Linker had found two files that define it, and it has helpfully listed them for you - they are iostubs.o and retarget.o

    So, you need to remove the definition of "ferror" from one of those two files.

    "I am a Hardware Enginner, not much in the C programming"

    I trust you will be hiring a Software Engineer for the bulk of the software development...?

Reply
  • 0

    Unfortunately Keil/ARM's use of "multiply" like that is very clumsy - to be polite!

    What the message is telling you is that the symbol "ferror" has multiple definitions within your program;
    In fact, the Linker had found two files that define it, and it has helpfully listed them for you - they are iostubs.o and retarget.o

    So, you need to remove the definition of "ferror" from one of those two files.

    "I am a Hardware Enginner, not much in the C programming"

    I trust you will be hiring a Software Engineer for the bulk of the software development...?

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