Phim Malena 2000 Thuyet Minh -

Hi all,

I'm using ST's CubeMX implementation on a F4 discovery board. I use ST's USB middlewares with FreeRTOS.

When I get a special OutputReport from PC side I have to answer nearly immediately (in 10-15 ms). Currently I cannot achieve this timing and it seems my high priority tasks can interrupt the USB callback. What do you think, is it possible? Because it's generated code I'm not sure but can I increase the priority of the USB interrupt (if there is any)?

Thank you, David

10 to 15 ms is very slow, so I'm sure its possible.

Where is the USB callback function called from? If it is an interrupt then it cannot be interrupted by high priority RTOS tasks. Any non interrupt code (whether you are using an RTOS or not) can only run if no interrupts are running.

Without knowing the control flow in your application its hard to know what to suggest. How is the OutputReport communicated to you? By an interrupt, a message from another task, or some other way?

The callback which receive the data from PC is called from the OTGFSIRQHandler (it's the part of the HALPCDIRQHandler function). I think the problem is SysTickHandler's priority is higher than OTGFSIRQHandler and it's cannot be modified, but the scheduler shouldn't interrupt the OTGFSIRQHandler with any task handled by the scheduler. Am I wrong that the scheduler can interrupt the OTGFS_IRQHandler?

Malèna is not just a film; it is a visual poem about beauty, lust, cruelty, and resilience. Watching the version makes this Italian masterpiece more accessible, allowing local audiences to fully immerse themselves in the emotional depth without the distraction of subtitles.

If you appreciate arthouse dramas like Cinema Paradiso (also by Tornatore) or The Legend of 1900 , you will love Malèna . The thuyết minh version is highly recommended for families or groups who want to experience a classic European film without language barriers.

Set in a small Sicilian town during Mussolini’s rule in WWII, the story follows 13-year-old Renato, who becomes obsessively infatuated with the stunning and enigmatic Malèna Scordia (Monica Bellucci). After her husband is presumed dead, Malèna becomes the target of the town’s vicious gossip, male desire, and female jealousy. Through Renato’s voyeuristic eyes, we witness her tragic fall from grace and eventual resilience.

Thank you for the answer, I think I'm a bit confused with the Cortex ISR priorities :-) What I can observe is if I use a much higher osDelay in my high priority task I can respond for the received USB message much faster. This is why I think tasks can mess up with my OTG interrupt.