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LPC23xx SDHC support

Pavel Faltynek

Hi everyone,

I know this is probably NXP related question, but I suppose there are many skilled guys knowing answer...

I would need to support SDHC cards on LPC2368. There is SD/MMC peripheral available. I didn't know it suppoorts also SDHC. After some research I understood the SDHC means only some more commands (comparing to SD) and thus it is only firmware related thing, so the NXP's hardware peripheral should support both types.

Is this correct assumption?
Would SDHC work when I implement SD 2.0 commands?

Thanks for opinions

Regards

Pavel Faltynek

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  • 0 in reply to while ();

    I use rlarm410. I have found the problem. It is because the variable type. In the demo, it uses "U32" to calculate the space of SDHC card and I modify it to be "U64" and it works well. The following message is from LPC17xx. Thanks for help !!

    File System Directory...
    No files... 8.015.282.176 bytes free.

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  • 0 in reply to while ();

    I use rlarm410. I have found the problem. It is because the variable type. In the demo, it uses "U32" to calculate the space of SDHC card and I modify it to be "U64" and it works well. The following message is from LPC17xx. Thanks for help !!

    File System Directory...
    No files... 8.015.282.176 bytes free.

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