Hi, All I am using KDS and MQX with board Twr-K21F120M mouted with the SD card to work as USB device when connected to the PC.

[jatinvashisth]

Hi All,

I am using KDS with MQX version 4.2 with board Twr-K21F120M .

I have mounted an SD card to the board and connect it to PC.

I want that SD card to be detected as USB device on PC. I am attaching the file which is I am using to do the same.

But I am not able to do it.

Kindly help. Its urgent.

Original Attachment has been moved to: demo.c.txt.zip

[danielchen]

Hi Jatin:

There is a msd demo in the MQX installation folder, it is very similar to your requirement

Freescale_MQX_4_2\usb_v2\example\device\msd

In this demo, ram disk or sd disk can be enabled , there is a macro control it.  in file disk.h

#define RAM_DISK_APP                        (0)
#define SD_CARD_APP                         (1)

unfortunately, TWR-K21F120M is not supported in MQX 4.2, you need to port this example from TWR-K22 to TWR-K21.

Please refer to porting guide.

Freescale_MQX_4_2\doc\usb_v2\USB_Stack_Porting_User_Guide.pdf

Regards

Daniel

Have a great day,
Daniel

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