MicroSD support on EMX

mverdia · April 4, 2011, 10:27pm

For a new project based on EMX cobra-like i have to use a microSD for space reason.
Is four line communication bus size of microSD supported automatically by your firmware after power up ?

Gus_Issa · April 4, 2011, 11:04pm

SD or Micro SD they are the exact same thing internally.

mverdia · April 4, 2011, 11:20pm

Thanks , this means that bus size command communication (4 bit) is automatically set at power up ?

Lurch · April 5, 2011, 1:28am

Sorry. Possibly wrong answer. Don’t have a Cobra.

Brett · April 5, 2011, 4:34am

[quote]Thanks , this means that bus size command communication (4 bit) is automatically set at power up ?
[/quote]

If you take a look at the Cobra, which uses an EMX module, the SD card socket has no other connections that would change the behaviour. The standard connection GHI use is the 4-data-bit connections so I can’t see why there would be any question about this.

Gus_Issa · April 5, 2011, 8:36am

Yes 4-bit on all FEZ boards Another GHI exclusive feature!