STM32U5 - USB and FreeRTOS?

[dmarks-ls]

I'm starting a project on the STM32U5G9, and one feature we want is USB connectivity, just a simple virtual COM port (CDC class).  Looking at the Middleware picker in CubeMX, the only USB-related items are USBPD (don't need Power Delivery at the moment), and USBX, which is the ThreadX/Azure RTOS USB stack.  If I look for CubeMX examples for the STM32U5G9J-DK2, the only USB examples offered are for ThreadX and USBX.

Is it reasonable to assume that if I don't want to be writing my USB application from scratch on the STM32U5, I should be using ThreadX/Azure RTOS instead of FreeRTOS?

Dana M.

[Pavel A.]

ST offers for STM32U5 so called "classic USB middleware": https://github.com/STMicroelectronics/stm32u5-classic-coremw-apps

[mbarg.1]

We used FreeRtos for many year, but with poor results in term of portability, re-use and reliability.

Since we moved to AZRTOS, we are several order of magnitude more stable and our libraries are fully re-usable.

Spend some time and have a look to AZRTOS, I am sure you will be happy of this effort.

We use as main platform, H7 devices, and we use USB for many task with great reliability and good performances.