51读写SD卡源码
..............\AT89X52.H
..............\C51_UsbDisk
..............\C51_UsbDisk.hex
..............\C51_UsbDisk.lnp
..............\C51_UsbDisk.M51
..............\C51_UsbDisk.Opt
..............\C51_UsbDisk.plg
..............\C51_UsbDisk.Uv2
..............\C51_UsbDisk_Opt.Bak
..............\C51_UsbDisk_Uv2.Bak
..............\common.h
..............\DEVICE.C
..............\DEVICE.H
..............\DEVICE.LST
..............\DEVICE.OBJ
..............\Fat.c
..............\Fat.h
..............\Fat.LST
..............\Fat.OBJ
..............\Fat32.c
..............\Fat32.h
..............\Fat32.LST
..............\Fat32.OBJ
..............\HAL.C
..............\HAL.H
..............\HAL.LST
..............\HAL.OBJ
..............\HPI.C
..............\hpi.H
..............\HPI.LST
..............\HPI.OBJ
..............\HPI32.C
..............\hpi32.H
..............\HPI32.LST
..............\HPI32.OBJ
..............\ISR.C
..............\ISR.LST
..............\ISR.OBJ
..............\Main.c
..............\Main.LST
..............\Main.OBJ