Operation NorFlash function is abnormal

jimhuang2 — Mon, 16 Sep 2019 06:51:55 GMT

Hello,

The project run NorFlash, but operate NorFlash function in the SRAM to execute.

After I used AHB command to read Norflash, go to operate flash function, and it happen an abnormal action occurs.

Operate NorFlash :

S1. Write Flash (IP Command)

S2. Read Flash (AHB Command)

S3. Erase Flash (IP Command), Used Erase Flash, Found at 0x600C8000~0x600C801F can't erase.

I suspect it may be a cache problem, currently the Project enable D-Cache and I-Cache, Will it be read Cache and Flash out of sync relationship?

Best Regards

Jim

Re: Operation NorFlash function is abnormal

igorpadykov — Tue, 17 Sep 2019 05:03:59 GMT

Hi JingHuan

eim nor examples with caches one can find in linux (EIM) NOR driver described in

sect.3.2 EIM NOR attached Linux Manual

imx-weim.c\bus\drivers - linux-imx - i.MX Linux kernel

Example without caches one can find in baremetal sdk

rt-thread/bsp/imx6sx/iMX6_Platform_SDK/sdk/drivers/eim at master · RT-Thread/rt-thread · GitHub

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

topic Operation NorFlash function is abnormal in i.MX Processors

Operation NorFlash function is abnormal

Re: Operation NorFlash function is abnormal