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LPC23xx SDHC support

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

Parents
  • (1) Thank you ! I test rlarm410 again and SDHC is really supported in LPC17xx. I can access SDHC card(8G) successfully with SD_File demo.

    (2) I have another question. When I plug-in MicroSD card with SD adapter in LPC17xx SD_File demo of rlarm410 and it will reset CPU whenever power on. But if I use SD card not MicroSD and this condition will not happen. Does anybody know why ?

Reply
  • (1) Thank you ! I test rlarm410 again and SDHC is really supported in LPC17xx. I can access SDHC card(8G) successfully with SD_File demo.

    (2) I have another question. When I plug-in MicroSD card with SD adapter in LPC17xx SD_File demo of rlarm410 and it will reset CPU whenever power on. But if I use SD card not MicroSD and this condition will not happen. Does anybody know why ?

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