Questions tagged [interrupt]
Use for questions related to interrupt signals and interrupt handling.
interrupt
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At what point in the interrupt-processing path does device-driver code execute?
I am new to interrupt handlers and device i/o and I have a few questions:
When you load a device-driver, i.e. kernel module, its assembly code is stored in the module-mapping region of the Kernel ...
- 11
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How to handle multiple interrupts connected on same interrupt line in STM32?
I have created a circuit to use multiple interrupts in STM32H63 microcontroller. e.g. several interrupt sources are conntected to EXTI0 and similarly for others interrupt lines as well. Now, I know ...
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Make python steps non-interruptible
I want to make a portion of my python script non-interruptible - i.e. when a keyboard interrupt is triggered, it will wait for the line(s) to complete before interrupting.
Use-case: I am performing ...
- 99
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How do exceptions work with the MMU in ARM Cortex A8 (ARMv7-A)?
Currently, I am studying the Cortex A8 kernel with MMU support. Previously, I only worked with Cortex M3, which did not have an MMU. According to the official documentation (ARM architecture reference ...
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How to implement functions within a UART Interrupt Handler?
I know this is an incredibly long questions but ive posted as much detail so I can give the most context and hopefully make it easier to answer.
I am currently creating a program to receive messages ...
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Interrupting a thread from ShutdownHook doesn't close resources
I have following code with a try-with-resources which creates two resources and it works fine:
public class SimpleResourceExample {
public static void main(String... args) {
try (var ...
- 1,863
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How does the OSPM know if an incoming interrupt is SCI or not?
According to the ACPI spec:
The SCI interrupt is defined to be a shareable interrupt and is connected to an OS visible interrupt that uses a shareable
protocol. The FADT has an entry that indicates ...
- 63.4k
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How to tell what kind of event a SCI represents?
I am trying to understand the ACPI event programming model.
According to the ACPI 6.5 spec, SCI (System Control Interrupt) will be raised for two kinds of events: fixed event and general-purpose event....
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UltraZed EV SOM: Interrupt Handler Not Triggering After Stop Command and Restart
I'm working on a project using the UltraZed EV SOM, and I've encountered an issue with interrupt handling in my custom kernel module.
Issue Description:
I have two video modes: "Normal" and &...
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AVR program(for ATmega328p) restarts after interrupts (Proteus 8)
The program is written in C and compiled for AVR microcontroller ATmega328p. The program is being debugged in Proteus 8. After all interrupts are executed, the program restarts from the initialization ...
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Error[Pe020]: identifier is undefined in vector table for RTOS-based ADC Interrupt
I'm doing a training program for embedded development, and right now I'm working on setting up an ADC interrupt in an RTOS environment in IAR Embedded Workbench.
I'm running into a problem when I try ...
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Why is a process slower inside an audio interrupt/callback compared to a loop?
I'm writing a real-time audio application in C++ that does a beefy amount of processing on 10ms chunks of audio. I'm using miniaudio to handle the audio I/O. When benchmarking the amount of time the ...
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How to obtain gpio number for irq number defined in the device tree
irq_to_gpio() is being removed and should not be available anymore.
Device tree:
interrupts = <GIC_SPI 14 IRQ_TYPE_EDGE_BOTH>;
The IRQ number assigned by the platform is 56.
Is there any valid ...
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revalidate("articles") in nextjs 14 App router (Is it update all aticles in nextjs cache)?
I have multiple articles in cms and i have update or articles in cms backend. In nextjs listing page i want to show list of articles. I have use fetchQuery in for articles and pass tag: ["...
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CA72 can't read ICC_IAR1_EL1 anymore after switch from EL3 to EL1 NS
I can read out ICC_IAR1_EL1 when CA72 at EL3 secure world.
After that, I configure El3 from Secure to Non-secure, after switch EL3 to El2, EL2 to El1.
At the end, I confirm A72 works at EL1 by ...
