FMC SRAM configuration with STM32CubeMX for STM32F769I-Eval board

[ANauz.1]

Hello,

When creating the default configuration for STM32F769I-Eval with CubeMX (using default configuration), the FMC is configurated to 22bits address.

On the schematics, address goes from A0 to A20, so 21 bits address.

Is this an error of the default configuration and should I change it to 21? Is there a purpose to do that (purpose that I do not understand)?

Thank you

Antoine

[Khouloud ZEMMELI]

​Hi @ANauz.1​ 

What's the Reference version ? Could you please share the "Schematic"?

Thanks

Khouloud

[ANauz.1]

Hello,

The schematics is in UM2035, STM32F769I-EVAL User Manual, Revision 3, page 60, address bus is A0-A20.

So from what I understand, FMC should be configurated to 21bits address and not 22bits.

Thanks

Antoine

[Khouloud ZEMMELI]

​Hi @ANauz.1​ ,

The default config of F7 Eval board is limited to 22 bits (because of the conflict with SAI ) => A[0:21]

Otherwise address can reach 26 bits => A[0:25]

Please use the latest CubeMX version, don't worry there's no error.

Best Regards,

Khouloud