How to interface STM32F429IGT with an external SDRAM?

[OMS]

Hi,
I’m trying to connect an external SDRAM (part no. K4S561632N) to STM32F429IGT. For that, I am using STM32CubeMX to generate the code. You can see the initialization of the external SDRAM from the link below:

https://www.dropbox.com/sh/x7pyqu6vszr1u6k/AAC_cxp3f1kb0GIjDp1nMSU9a?dl=0

The IDE that I am using currently is Keil uVision 5. For writing to the SDRAM, I used the stm32f4xx_hal_sdram driver, but unfortunately using the write function “HAL_SDRAM_Write_8b(…)” writes the variables in the internal RAM.
Do I need to configure something else in Keil? Or does something need to be changed in the scatter file?

Thanks in advance,
OMS

[capt bullshot]

Sounds a bit strange to use a function to write data to the external SDRAM.
After initialization one would use a pointer to access the RAM since it's in the memory address range, or use some compiler specific attributes to place data there and leave the linker do the rest. Don't know anything about how to do that with the Keil tools, but in general, you'd have to define this in the linker files.

[iMo]

Do you use a DRAM or SDRAM?? Double check that..
When the FMC is configured properly your SDRAM will be accessible as the "internal ram" in a specific segment of ram memory (depends on the bank you have chosen).