eMMC 5.1 / STM32F4 Compatible?

[Craig B]

Posted on January 23, 2018 at 19:55

We are looking to replace an eMMC 4.41 chip (by Micron) that we currently use with a new one SanDisk iNAND 7250-I (https://media.digikey.com/pdf/Data%20Sheets/Micron%20Technology%20Inc%20PDFs/EMMC_Series.pdf). This component can run at variable clock speeds and supports the the eMMC 5.1 standard. Has anyone tried this component or another 5.1 part with an STM32F4 successfully? Any issues or anything noteworthy?

Thanks,

Craig

[pj_stm]

Hi @Community member​ ,

Could you share the ECSD reading code. I tried almost everything but the card does not reply to the command8. A do not see any activity on the command or data lines.

Thx Piotr

[PyKe]

Hi @Community member​ 

I tried to read the EXT_CSD register but no success !

Please can you share your code, Thank you !

[pj_stm]

Newest HAL does it (at least for STM32L4S9). Download it and see how it is done if you do not want to use HAL.