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These are some wrong with title files

Jobs

.\Objects\xinchengxu.axf: Error: L6218E: Undefined symbol mm_scan_GPIO_Config (referred from main_1.o).

.\Objects\xinchengxu.axf: Error: L6218E: Undefined symbol mm_scan (referred from main_1.o).

.\Objects\xinchengxu.axf: Error: L6218E: Undefined symbol SystemCoreClock (referred from delay.o).

.\Objects\xinchengxu.axf: Error: L6218E: Undefined symbol SystemInit (referred from startup_stm32f10x_hd.o).

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    These are Linker errors.

    They tell you that you have called these functions, but have not defined them - hence, "undefined".

    This usually happens when you #include a header which declares the names,  but omit to  add the file(s) with the definitions to your project.

    The file(s) with the definitions  could either be source files, or pre-built library files.

    This is standard 'C' programming stuff - nothing specifically to do with Keil, ARM, or embedded.

    http://c-faq.com/decl/decldef.html

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  • 0

    These are Linker errors.

    They tell you that you have called these functions, but have not defined them - hence, "undefined".

    This usually happens when you #include a header which declares the names,  but omit to  add the file(s) with the definitions to your project.

    The file(s) with the definitions  could either be source files, or pre-built library files.

    This is standard 'C' programming stuff - nothing specifically to do with Keil, ARM, or embedded.

    http://c-faq.com/decl/decldef.html

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