Ali LABBENE

Hi @Kun-Kun, I forwarded you report to our development teams. I will keep you informed. With regards,

ST Internal Reference: 195825

Fixed in release **1.28.2**

Hi @FT9R, I understand your point. However, the driver is intended to be used in "run" mode, not in "debug" mode. Adding the polling mechanism you suggested may ensure a...

Hi @FT9R, I could observe the behavior you reported using TIM's [TimeBase](https://github.com/STMicroelectronics/STM32CubeF4/tree/master/Projects/STM32F4-Discovery/Examples/TIM/TIM_TimeBase) example. Even though the breakpoint at line `6822` is not hit, the rest of the example runs correctly....

Hi @FT9R, After further debugging, I start believing you are right about the fact this might be an issue and that a **polling mechanism** to check the flag status before...

ST Internal Reference: 188927

Hi @builder60, Thank you for your post. You are right about the fact that, within the function `USBD_Device_Framework_Builder()`, and precisely at lines **381** to **383** of the generated file `ux_device_descriptors.c`,...

I understand better your point. I'll give it another try with `STM32CubeMX` and let you know. Thank you for the clarification.

Hi @builder60, After further analysis, it looks like the [ux_device_descriptors.c](https://github.com/STMicroelectronics/STM32CubeU5/blob/adf6b6ecba7056fb65753b41a970329c305523ff/Projects/NUCLEO-U5A5ZJ-Q/Applications/USBX/Ux_Device_CDC_ACM/USBX/App/ux_device_descriptors.c) file is some kind of **template** used by `STM32CubeMX`. Hence, if it is confirmed there is some fix or update...