Videojet 1510 User Manual.zip Info

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?

: Guidelines to ensure safe operation and maintenance of the printer, including electrical safety, chemical handling (for inks and cleaners), and mechanical safety.

: Detailed technical breakdowns and circuit diagrams are often found in the Videojet 1210/1510 Service Manual hosted on the Internet Archive.

In the fast-paced world of manufacturing and product packaging, few devices are as critical yet as overlooked as the industrial inkjet printer. Among these workhorses, the Videojet 1510 stands out as a popular continuous inkjet (CIJ) printer known for its reliability and ease of use. However, like any sophisticated piece of equipment, its full potential is unlocked not through guesswork, but through its documentation. The file named is far more than a simple digital folder; it is a comprehensive, portable toolkit that contains the essential knowledge for operating, maintaining, and troubleshooting this complex machine.

Go to Videojet.com → Support → Manuals & Documents → Search "1510".

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.