After boot from eMMC,iMX.RT1170 can not read /write eMMC normally.

[yangaichimantou]

Hi,

Our iMX.RT1170 boot from eMMC and firmware run normal.

However in this firmware, we can not initialize the eMMC normally.

We get cmd0,cmd1,cmd2,cmd3,cmd7 response normal.

However when we use cmd8 to read ext csd ,the DATA0 line has no response.

We wonder if the bootRom has changed the eMMC to a special status?

We can read the eMMC if we use other boot mode. Do you have any idea about this problem?

Hope for your reply.

[jingpan]

Hi @yangaichimantou ,

There should no special setting to eMMC. You can try to reset eMMC and SDHC peripheral again before reinitialize.

Regards,

Jing

[yangaichimantou]

Thank you for your reply.

It proved to be something wrong with the hardware.