AURIX™ Forum Discussions

[yangliu]

Hello!

Recently I`m using Tc387 demo board for developing.I notice that there is a SD card on the board.

Now I want to use emmc to store data.But I do`nt know how to use it .

could you please tell me the way to use emmc in tc387 3v3 demo board.

Thank you!

[dw · Accepted solution]

Hi yangliu,

You can refer below for general information.

https://www.infineon.com/dgdl/Infineon-AURIX_SD_and_eMMC_Interface-Training-v01_00-EN.pdf?fileId=554...

Besides, TC3xx User Manual Section 46 SD- and eMMC interface has more details about the register and procedure.

for SD cards, 1- or 4- data lines are supported. Block buffer of 2x512 Bytes

However, some exceptions need to be noticed. i.e. no dual voltage, no high clock freq, no 4kB sector support, no DDR, etc... (for eMMC)

Moreover, the file system you should pay attention to write your own.

dw

[yangliu]

Thank you for the reply!