Unable to Use Pin PC15 as GPIO_Input or GPIO_Output

[krushna_moukthik]

Hello Community,

I’m facing an issue with Pin PC15 on my board. I am unable to configure or use it as a GPIO, either as input or output. I’ve tried basic initialization, but it doesn’t seem to respond as expected.

Has anyone experienced a similar issue with PC15, or is there a special configuration/limitation I should be aware of? Any guidance or suggestions would be greatly appreciated.

Thank you in advance!

Clock Configuration:

LSI at 32 KHz

HCLK at 86 MHz

[AScha.3]

Hi,

PC15 , from ds :

+

So these pins are on backup domain ;  you have it working ? (Vbat supply ? )

+ read RTC description...or set it in Cube .