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djhtml · 2018-08-19

I would like to use SDIO with 4 bit mode with FatFS. I use STM32F429I Discovery board and I wired a micro SD card board to it. The SD card is a 16 GB SanDisk Ultra A1 card formatted to FAT32.This is the micro SD card board: https://image.dhgate.com/0...

djhtml · 2018-08-21

I took a look with oscilloscope at all lines (D0-D3, CMD). They look fine, there is communication in every lines. All signals are 0-3V and looks "sharp".How can I determine if there is a CRC error due to the clashes with the display signal, as @Commu...

djhtml · 2018-08-19

Thank you for the answers!@Community member Yes, STM's PC9 is SDIO D1 and also is SDA for the thouch sensor. But the other pins of the display is not shared with SDIO pins. Since there is no clock on SCL, SDA shouldn't be interfering with SDIO, sho...

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SDIO 4 bit mode with STM32CubeMX

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