daawc.blogg.se - What is clear pending interrupt

And everything you need in order to configure the NVIC & EXTI correctly and write efficient interrupt service routine handlers (ISR) code. How interrupts are generated and how the CPU switches the context to the ISR and back to the main application. In this tutorial, we’ll discuss the ARM cortex interrupts/exceptions, and how priority works. INTEL = window.Previous Tutorial Tutorial 7 Next Tutorial STM32 Interrupts Tutorial | NVIC & EXTI STM32 Course Home Page 🏠 Wa_page_type_micro: "udeDocumentationDetail", Wa_cq_url: "/content/www/us/en/docs/programmable/683686/20-4/dropping-a-pending-msi-interrupt.html", Wa_audience: "emtaudience:business/btssbusinesstechnologysolutionspecialist/developer/fpgaengineer", Wa_primarycontenttagging: "primarycontenttagging:intelfpgas/intelprogrammabledevices/intelarria/intelarria10fpgasandsocfpgas", Wa_emtcontenttype: "emtcontenttype:designanddevelopmentreference/developerguide/developeruserguide",

Repeat this sequence for all MSI numbers and functions.

Verify that the pending bit for the interrupt specified is now 0.

Read the Pending Bit register of the function specified using a Configuration Read Request.

Verify that the SR-IOV bridge does not send the Message TLP on the Avalon-ST interface.

Send a Configuration Write Request to clear the MSI mask bit for the selected function and interrupt number.

Send a Configuration Write Request to clear the pending bit using the MSI interrupt interface.

Verify that the pending bit corresponding to the interrupt specified is set to 1.

Read the Pending Bit register for the function specified using a Configuration Read Request.

Verify that app_msi_status=2'b01when app_msi_ack=1.

No MSI interrupt message is sent to the host.

Use the MSI interrupt interface ( app_msi*) to generate an MSI interrupt request for the selected Function and interrupt number.Set the MSI mask bit for the selected function and interrupt number using a Configuration Write Request.Select a function and interrupt number using a Configuration Write Request.Specify the number of MSI vectors in the Multiple Message Enable field of the MSI Control register using a Configuration Write Request.Set up the MSI Address and MSI Data using a Configuration Write Request.Enable MSI interrupts by setting the MSI enable of the MSI Control register using a Configuration Write Request.The Interrupt Disable bit is bit 10 of the Command register. Disable legacy interrupts by setting Interrupt Disable bit of the Command register using a Configuration Write Request.The first four steps are the same as for Setting Up and Verifying MSI Interrupts Perform them once, during or after enumeration. The following procedure shows how to drop a pending MSI interrupt.