I'm using STM32H747i-DISCO board. In Stm32Cube_FW_H7_V1.11.2 STM32H747I-DISCO example project -- stm32h747i_discovery_sdram.c, cas is 3. SDRAM worked fine with this setting. It didn't work when I changed cas to 2. Datasheet of Is42s32800G-6BLI shows...

I 'm using STM32H747I-DISCO, with IAR toolchain. I tried some example in STM32Cube_FW_H7_V1.4.0, CM7 and CM4 are in two different configuration of a project(ex, STM32H747I_DIACOVERY_CM4 and STM32H747I_DIACOVERY_CM7), which can only be activated and ...