2018-11-08 06:47 AM
I work with stm32f405vgt, voltage 3.3 V, Cube MX ( version 4.27, HAL library - STM32Cube FW_F4 V1.21.0), sdio sd 4 bit widebus, fatfs, without dma, All CLK 18 MHz. I can’t mount the disk, open the file and write to the file. Attached is a schematic diagram.