AnsweredAssumed Answered

perihp_sdmmc LPC4337 example unable to write on sd card

Question asked by Arvind Prasad on Jan 13, 2017
Latest reply on Jan 17, 2017 by Kerry Zhou

I am using LPC43s67 evaluation board.

I have a custom sd card addon which is connected through sdio interface.

The sd_cd pin is not available on my custom board.

I am using a 4GB SD card with FAT 32 format.


I flash the periph_sdmmc code, but unable to create file or write any test on the sd card.

I am not getting proper output from disk_initialize function.


I have provided the VDD and i am getting proper voltage for SD card interface.


Since i do not have the sd_cd pin I made the sdif_CardnDetect function return(0) manually.

Now hard error "Card Acquire Failed" is coming up.


Can anyone help to resolve the error?