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Issue of mounting 256MB SD Card in STM32F411 Discovery kit using SDIO interface

Question asked by Durmil Makwana on Jun 14, 2018

I am using stm32F411RE discovery kit. i generate a code with the cubeMX4.25, the 4GB SDHC card is working fine but when i tried with the 256MB SD Card it was not working. I am getting error "FR_NOT_READY" in f_mount function.

Other SD Cards (4GB and 16GB) are successfully mounted and file can be written/read.