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USB mass storage device. SD card «SanDisk U-3», 4 bites bus, FAT32, without external transceiver.Base of my project isSTM32Cube_FW_H7_V1.8.0\Projects\STM32H743I-EVAL\Applications\USB_Device\MSC_StandaloneI have the read speed near 1.5 Mbytes per seco...