MMC question about connections

[rezaf]

Re: MMC question

hello friends.
I want make a MMC card R/W board and have a SD card socket but don't know what pins must be blank (I know that MMC have 7 pin and SD vave 9 pin). I wired the socket and take a picture from it and attached please see that and help me to resolve the problem. (I written the black texts on picture to explain my circuit if the pin names is false say to me.)
Thanks.
Best Regards.

Added after 4 hours 18 minutes:

anyone can't answer to my question I think this is not difficult for professionals.

 

[osama_]

Hello,

I've created this project before, and I wish you do too. The most useful links helped me achieve that are listed below.



**broken link removed**

https://www.samsung.com/global/busi.../applicationnote/MMC_HOST_Algorithm_Guide.pdf

They will provide you with a good basis to start.

Best wishes,
Osama Salah

 

[rezaf]

thanks sir I go to check the websites.