AnsweredAssumed Answered

driving SD card with SDIO_CK over 25Mhz

Question asked by zhang.jeffrey on Jun 8, 2011
Latest reply on Jun 21, 2011 by van_hooft.frank.001
Has anyone successfully worked with driving SD card with SDIO_CK over 25MHz?

I'm working on a SD card project. I'm trying to increase SDIO_CK up to 48MHz. but I keep receive SD_ERROR 3 "SD_CMD_RSP_TIMEOUT ".

SD card is V2.0. I am using CMD6 to switch to high speed mode. Response data shows switch is done. but following command gets SD_ERROR 3.

Any ideas?