STM32 Remap function issue

[alex239955_st]

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

[Tesla DeLorean]

Posted on December 03, 2014 at 14:31

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

[alex239955_st]

Posted on December 03, 2014 at 14:41

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

[Tesla DeLorean]

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.