Is there a "simple" example of how to write/read a USB drive using STM32CubeIDE?

[RCooke88]

Hi Folks,

I'd like to find an example of accessing a USB drive using the STM32CubeIDE. I'm currently using the Nucleo-H7A3Zi-Q board.

I believe I have setup the hardware correctly using the device configuration tool but I can't seem to find a simple or concise example on how to develop the code.

I have downloaded the STM32Cube_FW_H7_V1.11.0 code and examples but it still seems more complicated than it should. I've looked at STM32Cube_FW_H7_V1.11.0\Projects\NUCLEO-H7A3ZI-Q\Applications\USB_Host\MSC_Standalone\ but I don't understand how (or what) to import into my workspace.

For a start I just want to be able to write a "Hello World" into a file on the USB key.

Anybody have a good tutorial or example I can use?

Thanks,

Richard

[TDK]

There is not a simple example because USB is not simple. It will take some time to learn.

Did you get the example running? Perhaps clone that and import your code into that project rather than the reverse.

A good resource for USB is here:

https://www.usbmadesimple.co.uk/

[Oskar_H]

Maybe you should have a look at example FatFs_USBDisk, it is much simpler and does what you want : write a text file.

[RCooke88]

Hi Oskar,

The example code for my Nucleo-H7A3ZI-Q doesn't have a FatFs_USBDisk example. The STM32H743-EVAL directory has a subdirectory called FatFs_USBDisk_Standalone. Is this something that could work for my board?

Thanks,

Richard

[Pavel A.]

>  I don't understand how (or what) to import into my workspace.

@RCooke88 Divide this task to two sub-tasks: a. Build and run the example as is, understand how it works, then b. Find out what to import to your project.  It could be easier this way.

If you decide to go with the FatFS library, consider update it to the latest version.

[AScha.3]

Hi Richard,

How about : diy ?  I try to help you and then you not only copy something, but you get it running yourself.

Wanna try ?

[RCooke88]

AScha,

I'll give it a try. What should I do?

Richard

[AScha.3]

ok,

in IDE -> file-> new STM32 project -> (board selector) give your board H7A3..nucleo -> select it : -> next -> give a name (only ascii, no space, like:) H7A3-test. finish.  (init alll... -> yes )

[AScha.3]

in ioc editor ...after a minute or so...  debug : trace swo

usb to host only

usb host to msc

+ here platform setting...

then fatfs to usb disk

if you want : long file names (i do..)

and exfat (for big > 32GB sticks)

ok...save file, generate code . (the gear symbol..)

[RCooke88]

OK. I followed your instructions and have a saved project with code now.