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Rajesh1
Associate III
January 28, 2020
Question

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

  • January 28, 2020
  • 2 replies
  • 627 views

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.

This topic has been closed for replies.

2 replies

waclawek.jan
Super User
January 28, 2020

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
Rajesh1Author
Associate III
February 12, 2020

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.