STM32H743XI: We are not able to access SPRAM in word mode, connected on FMC bus.

[Rajesh1]

We have configured FMC in STM32H743XI controller using STM32CubeIDE.

Please find the configuration done below.

• Chip Select - NE3
• Memory Typee - SRAM
• Address - 15 bytes [32 Kbytes]
• Data - 16- bits
• Wait - Disable
• Byte Enable - Disable

We are not able to perform R/W operations on SPRAM connected in word-mode.

But we are able to access the SPRAM in page mode.

I request to support to identify the missing configuration settings in STM32CubeIDE

Thanks,

-Rajesh.

[waclawek.jan]

What is SPRAM?

What do you mean by "we are able to access the SPRAM in page mode"?

Read out and check the content of FMC registers, don't rely on Cube/CubeMX.

JW

[Rajesh1]

HI,

Thanks for your response.

SPRAM means Single Port Random Access Memory. This is same as SRAM [Static RAM].

Can we get FMC configuration for interfacing SRAM.

-Rajesh.