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LPC23xx and SD card wiht MCI interface,please help

Popo

Hello,everyone

I want to connect LCP23xx and SD Card with MCI interface but i didn't understand flow of them.
Now,I founded library coding in SPI mode only. who has it in MCI bus,please help
or
give information about flow of operation?
when i will write data(i just only single block)
what i will do first time?
---------------------------------------
now, i think(i don't know,is it true?)

In the first(before set pinsel in arm)

i must send command in CMD line from host to card in Card identification mode?
(i don't know how to set register,now i try to coding this step)

thank you everyone (sorry if has wrong english:) )

Parents
  • 0 in reply to John Linq

    Thank you,John Linq
    Now,I'm reading NXP code :)Try to understand
    have many word in C i don't know.but i try to know.

    I think interface in MCI card has 1bit(if not select wide bus) and sorry,I don't understand your introduce in above massage.

    now, I set port and power up and on in SD card ready
    but don't know what's code of NXP i will programme next step.

Reply
  • 0 in reply to John Linq

    Thank you,John Linq
    Now,I'm reading NXP code :)Try to understand
    have many word in C i don't know.but i try to know.

    I think interface in MCI card has 1bit(if not select wide bus) and sorry,I don't understand your introduce in above massage.

    now, I set port and power up and on in SD card ready
    but don't know what's code of NXP i will programme next step.

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