Chris Ross

MicroSD Cards and SDHC compatibility

Discussion created by Chris Ross on Jan 18, 2010
Latest reply on Oct 14, 2011 by Chris Hogh

Hi

 

I have been following the SD card examples provided with MQX 3.4 and have had had the following results:

 

1) 256 MB MicroSD Card (Non SDHC) - Works perfectly.

2) 2 GB MicroSD Card SDHC - Detects card but unable to read directory or format.

3) 8 GB MicroSD Card SDHC - Detects card but unable to read directory or format.

 

I understand there is a different initialization routine for the SDHC cards. Does anyone know if this has been factored into the current driver? If not, will it likely be included with future MQX releases or should I just develop my own modified driver?

 

Has anyone had any other experiences with MQX and SDHC cards before?

 

Thanks

Chris

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