Dermot_kennedy_kiss_me_acoustic

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?

Whether you’re a longtime fan or new to his music, the acoustic version of "Kiss Me" serves as a reminder of why Dermot Kennedy has become one of the most compelling voices in modern music. It’s a song for the quiet hours—a track that demands you stop, listen, and perhaps hold your loved ones a little closer. Dermot Kennedy - Kiss Me (Sonder Street Sessions, Boston)

Released officially in late 2022 as part of the Sonder era, the acoustic rendition of "Kiss Me" highlights Kennedy’s unique ability to blend poetic lyricism with a hip-hop-influenced rhythmic delivery. By removing the pop-polish, the weight of the lyrics becomes the focal point.

The Power of Vulnerability: Unpacking Dermot Kennedy’s "Kiss Me (Acoustic)"

Lines like "You carry it so gracefully," referring to past heartbreak, feel more like a whispered confession than a sung lyric.

The core hook——shifts from a catchy refrain into a vulnerable plea. It captures that universal human fear: the awareness that everything is temporary and the subsequent desire to "eternalize this moment". Why the Acoustic Version Hits Differently

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.