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Nucleo 144 stm32f429ZI , CANOT USE H0 H1 pins

Question asked by TARHAN SAMAH on Apr 5, 2018
Latest reply on Apr 5, 2018 by T J

Hello , i have a really simple basic question , im using stm32f429ZI NUCLEO CART (pc14pc15 X2 cristal low ), 

 , but i connect two of my keypad pins to PH0 AND PH1 which looked on no conflict on this map 

 

https://os.mbed.com/platforms/ST-Nucleo-F429ZI/ 

 

but after making the  pcb i see that they dont work 

 

, i checked they looks common pins as "OSC IN OUT",

 

how can i close the osc so that i can use them like digital input or output ?? from cube mx or by keil code 

 

thanks for help 

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