STM32F769I-DISCO with USB-Stick and FatFS

[patrickschneider9]

Hi guys,

unfortunately I am not able to find an example on how to use/configure the STM32F769I-DISCO with FatFS and USB-Mass Storage to be able to stick a USB-Stick into the board and read/write files. Can someone of you point me in the right direction?

I am getting the HOST_USER_CONNECTION event but not the HOST_USER_CLASS_ACTIVE event when plugging an USB-Stick into the board and have not the slightest idea where to start.

In CubeMX I am getting an error that VBUS is not configured correctly before creating the code but there doesn't seem to be a dedicated pin for that on the DISCO board.

Cheers,

Patrick

[Walid ZRELLI]

Hello @patrickschneider9​ ,

You can refer to the following example provided under our F7 Firmware Package (Path: Projects\STM32F769I_EVAL\Applications\FatFs\FatFs_USBDisk)

You could port it on your board. This might help you.

BeST Regards,

Walid

[patrickschneider9]

Hi Walid,

thanks for the answer - that I already found but unfortunately there is no *.ioc file to "quickly" replicate the configuration for the CubeMX and more importantly I don't know how exactly to configure the USB board specific for the DISCO board (especially the VBUS, as it seems to have no pin for that).

Cheers

[Walid ZRELLI]

Hello @patrickschneider9​ ,

Unfortunately, we do not have an example developed with the STM32CubeMX in our F7 firmware package.

But, you can follow this training that uses the STM32CubeMX: https://www.youtube.com/watch?v=dC0d8CVEPrQ

I hope it will help you.

BeST Regards,

Walid

[patrickschneider9]

Hi again,

thanks for the answer, that video indeed is helpful for understanding how to connect FatFS to the USBH Process and to work with FatFS! Thanks for that. Unfortunately I am not getting to this point as my Appli_State never get switched to HOSTER_USER_CLASS_ACTIVE.

Still I am thinking about the VBUS pin. The video you posted also showed how to configure this pin, but I can't find this pin in the schematics of the DISCO board.

So perhaps let me ask another question: Is USB OTG Host with read/write to an USB-Stick possible with the STM32F769I-DISCO?

Cheers and thanks.