I tried your software, and there is no communication outgoing on VCP as you mentionned. here is my setup. thanks

Hi, Thanks for your help. I'll try your hex file with my L4R5 and MIcron eMMC 4GB. I will see after that if I will reach you for our needs.

Do you bother to send me an exemple of your code ? I tried to port F4 HAL MMC file to L4 but it didn't work at first try. I would really appreciate a little bit of help :) thanks

Hi, I'm currently working on the same boards and I was looking forward to make eMMC work with it. Do you manage to make it work ?