I am using AzureRTOS on STM32F407/417 and need to add USB to my project. I have alrerady a few tasks run on my target, but how do I actually add USBX ?? Are there any examples from ST, that shows this ??

[KDJEM.1 · Accepted solution]

Hi @olebenny​ ,

Many examples project that use Azure RTOS USBX are available in CubeIDE as shown in the below figure. For more explanation, I advise you to follow these links to know how to use the USBx for AzureRTOS applications:

• https://wiki.st.com/stm32mcu/wiki/Introduction_to_USBX
• https://wiki.st.com/stm32mcu/wiki/Introduction_to_Azure_RTOS_with_STM32

Kaouthar

[olebenny]

Hello Kaouthar

Thank you for responding.

I am using STM32 Cube IDE v1.9.0 and STM32 Cube MX V 6.5.0.

If I select the USB example Ux_Device_DFU for NUCLEO-F429ZI I get the 'old' USB-code, that works with FREERTOS, not the Azure_RTOS + USBX.

Unfortunately, Azure_RTOS and USBX are not part of 'my' Cube MX for direct selection, I have to select it through 'Software Packs --> Select Components'.

Here I can select 'STMicroelectronics X-CUBE_AZRTOS-F4' and in that sub-tree, I can select 'RTOS ThreadX' and 'USB SUBX'.

I have already succeeded doing this with 'RTOS ThreadX' for NUCLEO-F429ZI as well as our own STM32F417 board by following this article:

How to create a Thread using AzureRTOS and STM32CubeIDE?

It describes in easy understanding steps what to do with Cube MX and Cube IDE.

Best regards

Ole

[mohamed.ayed]

.

[olebenny]

Hello AYEDMSTM

Your screenshot show exactly, what I selected under 'Software Packs --> Manage Software Packs'.

I then also under 'Software Packs --> Select Components' selected 'RTOS ThreadxX' and 'USBX', and I think I now got it imported to my project. Now I just have to figure out how to use it.

Please see attached screenshots.

Best regards

Ole

[olebenny]

Hello AYEDMSTM

Thank you for your email, nice description. I will save it for future reference.

How do I tell USBX which USB-device on the STM32F407/417 to use ??

Best regards

Ole

[mohamed.ayed]

@oblenny

You can follow this example :

https://github.com/STMicroelectronics/x-cube-azrtos-f4/tree/main/Projects/STM32469I-Discovery/Applications/USBX/Ux_Device_CDC_ACM

[olebenny]

Hello AYEDMSTM

Thank you for pointing this example.

And even better, I found an example for NUCLEO-F429ZI, which I happen to have 7 pcs of, as the STM32F429/439 are quite similar to STM32F407/417.

Best regards

Ole

Software Development, FAE

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