XSPI Pins

[El_Chez]

Hello,

 

I am using STM32N657X0H3Q,

I am trying to interface unused XSPIM_1 pin - PO1 and XSPIM_2 pin - PN12 as i/o pins,

However, STM32CubeMX flags “PARTLY DISABLES CONFLICT” when I try to use them as i/o pins.

 

Can I still continue to use them as GPIO, as I need to interface them with my flash, which works at 1.8v,

but my VDD=3.3V, so I only have my freedom of pins left in XSPI_1 and XSPI_2(both of them powered by VDDIO2 AND VDDIO3 are connected to same source at 1.8v), so the pins left are PO1,PO5, AND PN12, 

 

It does not raise an issue when I use PO5; it raises an issue for both PN12 and PO1,

 

Can Someone please help me sort this? Can I still use them, or do I necessarily have to go with a level shifter

 

Thank you.

[Aimen1]

Hello,

 

Thanks for sharing this behavior.

Can you share your .ioc project and the STM32CubeMX screenshot of the conflict?

 

Regards.

Aimen

[El_Chez]

Hello,

Thanks for your reply,

 

1)This is what i could see if i set PN12 as GPIO OUTPUT: CHIP SELECT OVERRIDE error in  XSPI2

 

2)This is what I could see when I select PO1 as GPIO OUTPUT: CHIP SELECT OVERRIDE error in  XSPI1

 

For this, I have attached my IOC file with the pin configuration, However in the attached document i have not enabled PN12 and PO1 to be GPIO, please let me know if i can ignore the warnings and use it as GPIO.

Please check and let me know.

 

Thank you.