Sone-190 !full! May 2026

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?

SONE-190 is a game-changing technology that’s poised to make a significant impact on various industries. With its high-performance capabilities, advanced technology, and enhanced security features, SONE-190 is an attractive solution for businesses and organizations looking to improve efficiency, performance, and accuracy. As this technology continues to evolve, we can expect to see even more exciting developments and applications in the years to come. Whether you’re a tech enthusiast, a business leader, or simply someone interested in staying ahead of the curve, SONE-190 is definitely worth keeping an eye on.

As SONE-190 continues to gain traction, it’s clear that this technology has the potential to revolutionize the way we live and work. While there are still many unknowns surrounding SONE-190, one thing is certain: this technology is here to stay. As researchers and developers continue to refine and improve SONE-190, we can expect to see even more innovative applications and use cases emerge.

SONE-190 is a state-of-the-art technology that’s designed to provide a range of benefits, from improved efficiency to enhanced performance. While the exact details of SONE-190 are still somewhat under wraps, it’s clear that this technology has the potential to disrupt the status quo in a big way. At its core, SONE-190 appears to be a highly advanced solution that’s capable of delivering exceptional results in a variety of applications.

SONE-190: The Revolutionary Technology That’s Changing the Game**

In a world where technology is constantly evolving, it’s not uncommon to come across innovative solutions that promise to change the way we live and work. One such revolutionary technology that’s been making waves in recent times is SONE-190. This cutting-edge solution has been gaining attention from experts and enthusiasts alike, and for good reason. In this article, we’ll take a closer look at what SONE-190 is all about, its features, benefits, and the impact it’s having on various industries.

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.