SDRAM model（W9864G6KH）

[ywjack]

NXP technical support Hello:

I have a question about SDRAM (W9864G6KH) to consult you. Firstly, there are two ways to initialize SDRAM. One is through call

BOARD_InitSEMC function is used to initialize SDRAM, but after I call BOARD_InitSEMC, I find that I cannot read and write SDRAM. I think there are some problems with my initial configuration. Could you please help me check? I modified it by referring to the DEMO instance evkmimxrt1170_semc_cm7 because my SDRAM is different from the development board.

Here is my initial configuration

Besides the initial configuration, do you need to pay attention to anything else

Question 2: In addition to calling the initialization function, you can also initialize SDRAM by configuring DCD through the configuration tool. Do you have a DCD configuration file for W989864G6KG? Can you provide me with a,

[jingpan]

HI @ywjack ,

Please refer to this post.

https://community.nxp.com/t5/i-MX-RT/IMXRT1021-change-SDRAM-issue-W9825G6-change-to-W9864G6/td-p/136...

Regards,

Jing

[ywjack]

This configuration should be correct。

I mean do you need to configure anything else besides initialization

[jingpan]

Hi @ywjack ,

Yes, if you test SEMC example, all above is enough.

In some other examples, you must enable  "USE_SDRAM" definition and determine which part should re-locate to SDRAM.

Regards,

Jing