FMC with dual core stm32h745

[DLy.1]

Hi,

I want share FMC(interface SDRAM) core between CM4 and CM7 core on STM32H7.

I config by cubeMx, CM7 can access ok but CM4 can not access.

How to access FMC core by CM4 and CM7?

Thanks,

[Abdelhamid GHITH]

Hi,

What kind of issue do you observed? What is the power state of D1 domain / CM7 when you try to access the SDRAM?

Best regards,

Abdelhamid.

[DLy.1]

Hi, I use STM32H745XIH6

• In cubeMx config, I check 2 cpus can access this SDRAM, the CM7 init FMC
  • CM7 access the SDRAM ok, but can not access by CM4
• when check 2 cpu can access this SDRAM, the CM4 init FMC
  • 2 cpu can not access SDRAM

I check datasheet of MCU, the FMC 2 cpu can access.

Thanks,

[Abdelhamid GHITH]

Hi,

in case 2 : "when check 2 cpu can access this SDRAM, the CM4 init FMC"

Can CPU1 access the SDRAM? (just to confirm that it was correctly initialized)

Br,

Abdelhamid.