ARM Technical Support Knowledge Articles

ERROR L121 (IMPROPER FIXUP) IN STARTUP.A51

Applies to: L251 Linker/Locator

Answer


Information in this article applies to:


QUESTION

Why does the 251 linker (L251) report "L121 Improper fixup error" in my STARTUP.A51 file?

ANSWER

Make sure that if you modify the startup file to set the STACK correctly. In the 80251, the stack pointer is a 16-bit value. If you are accustomed to using the 8051, it is easy to forget to initialize the upper byte. This means the upper byte never gets set which may cause this error message.

Article last edited on: 2005-07-06 17:15:36

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