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alex239955_st
alex239955_st
Associate
December 3, 2014
Question

STM32 Remap function issue

Posted on December 03, 2014 at 14:23

Hi all,

I'm working with stm32f103zhc6 mcu and the issue is that I cant write AFIO_MAPR2 register. Is the issue because the register exists in XL-density devices only or some special action should be applied to get an access to this register?

#afio_mapr2
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    3 replies

    Tesla DeLorean
    Tesla DeLorean
    Guru
    December 3, 2014
    Posted on December 03, 2014 at 14:31

    Can you modify any of the AFIO registers? Is the AFIO clock enabled?

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    alex239955_st
    alex239955_stAuthor
    Associate
    December 3, 2014
    Posted on December 03, 2014 at 14:41

    AFIO clock enabled and I can successfully write to MAPR (but not to MAPR2)

    Tesla DeLorean
    Tesla DeLorean
    Guru
    December 3, 2014
    Posted on December 03, 2014 at 16:26

    I, and apparently Google, are not familiar with your STM32F103ZH part, care to cite a data sheet for it?

    Since a lot of the values appear to relate to peripherals only in the XL series parts, yes I'd assume it's related to that.
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