lrakulka / double_bottom_usb_stick Goto Github PK

The SD Card doesn't want to work from the 5V supply.

Some project libraries refuse to work correctly.

Double_Bottom_USB_Stick\Double_Bottom_USB_Stick.axf: Error: L6200E: Symbol SD_Driver multiply defined (by sd_io_controller.o and sd_diskio.o). Double_Bottom_USB_Stick\Double_Bottom_USB_Stick.axf: Error: L6200E: Symbol SD_initialize multiply defined (by sd_io_controller.o and sd_diskio.o). Double_Bottom_USB_Stick\Double_Bottom_USB_Stick.axf: Error: L6200E: Symbol SD_ioctl multiply defined (by sd_io_controller.o and sd_diskio.o). Double_Bottom_USB_Stick\Double_Bottom_USB_Stick.axf: Error: L6200E: Symbol SD_read multiply defined (by sd_io_controller.o and sd_diskio.o). Double_Bottom_USB_Stick\Double_Bottom_USB_Stick.axf: Error: L6200E: Symbol SD_status multiply defined (by sd_io_controller.o and sd_diskio.o). Double_Bottom_USB_Stick\Double_Bottom_USB_Stick.axf: Error: L6200E: Symbol SD_write multiply defined (by sd_io_controller.o and sd_diskio.o).

Original data reading from the SD Card

Original data writing on the SD Card

The project speeed of data reading

The project speed of data writing

The tests used the same SD Card

The last update (14-April-2017) has changed a lot in CubeMX v1.21 and Firmware Package v1.16.0 at least in the SDIO module. That is why a lot of tutorials are not sufficient anymore.
But you still can download an older version and work with it.

The project Micro SD Card module reader has a problem with some SD cards.

The USB interface is not activated without activating the activation pin.

It happened so that I was unlucky to get a USB 2.0 cable with the wrong color marking of the wires.

The marking should be as described below.

But I got this

Data can be read from SD card but can't write.
This issue occurs only in the project.
If use SD card itself it works fine.