CUBE-IDE / CubeMX Bug? Cannot setup clock for STM32N6 processor

[matt-crc]

Hello,

Does anyone know how to setup the clock source for the N657 processor?  I want to use an oscillator for the HS clock input and setup HSE = Bypass clock source...

using Bypass clock it should only use PH0 (clock in) and free up the PH1 pin (clock out).  But it seems the IDE / cubeMx always wants to use both pins regardless of the clock configuration.

am I missing something or is this a bug?

thanks, Matt

[AScha.3]

Hi,

maybe small inaccuracy in Cube ,or N6 just dont switch off osz-out . (read in rm or errata...what it should do)

But it has enough other pins, so not  free up the PH1 pin is nothing to worry about. 

[matt-crc]

@AScha.3 

The reason I was asking about PH1 is because I need that pin, which means there isn't enough pins... lol

[AScha.3]

@matt-crc 

Which cpu we talking about ?  264 pins ? and need every pin ??

[matt-crc]

yes

[AScha.3]

Show your circuit... :)

[matt-crc]

Hello @Ghofrane GSOURI 

Can you also address this post, this appears to be another bug with the Cube-MX software, where the clock pins are not allocated properly.  You can use the same .ioc file as the previous ticket.

Let me know if you need additional info.

thanks

Matthew

[Ghofrane GSOURI]

Hello @matt-crc 

I appreciate your helpful contributions.

According to RM0486 Rev 2, Section 14.6.2: External clock source (HSE bypass):PH1 (OSC_OUT) is not required for HSE bypass mode.

Ticket 220815 has been escalated to the development team for further investigation and resolution of this behavior.

THX

Ghofrane