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SD card interface 4-bit

Altera_Forum
Honored Contributor II
‎05-21-2014 03:59 PM
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Hello is possible to have an SD 4-bit interface for De2 -115. Because on the user manual is written that DE2-115 SPI and 4-bit interface. Thanks.

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Altera_Forum
Honored Contributor II
‎05-21-2014 05:01 PM
563 Views

As far as I know it is possible, but the 4bit interface is increadibly difficult. I know SPI is easier.

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Altera_Forum
Honored Contributor II
‎05-22-2014 08:23 AM
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The nibble wide interface is licensed, thus is primarily the domain of corporations prepared to pay for the right to use it. It's difficult to get the information about it - although not necessarily difficult to code. 

 

I agree with Pieter - SPI is far easier and there is enough information readily available to help you implement it. 

 

Regards, 

Alex
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