Top "Isr" questions

Interrupt Service Routine, also known as Interrupt Handler, is a callback subroutine in microcontroller firmware, operating system or device driver whose execution is triggered by the reception of an interrupt.

What is the difference between FIQ and IRQ interrupt system?

I want to know the difference between FIQ and IRQ interrupt system in any microprocessor, e.g: ARM926EJ.

arm interrupt drivers microprocessors isr
Signals and interrupts a comparison

Based on various references, my subjective definition of signals in Linux is "The triggers that are used to notify the …

linux signals posix interrupt isr
How to save the registers on x86_64 for an interrupt service routine?

I am looking at some old code from a school project, and in trying to compile it on my laptop …

assembly x86-64 isr
Difference between ISR and Function Call?

I want to understand difference between ISR (Interrupt Service Routine) and Function call. I feel both the function call and …

operating-system embedded computer-architecture function-calls isr
How CPU finds ISR and distinguishes between devices

I should first share all what I know - and that is complete chaos. There are several different questions on …

interrupt irq isr apic
How to enable interrupt function in sw4stm32

I use SW4STM32 toolchain,I want to bliking led using timer2 when overflow, in STM32103RET, here is my …

timer interrupt stm32 isr
ESP8266/Arduino: Why is it necessary to add the ICACHE_RAM_ATTR macro to ISRs and functions called from there?

I read that I need to add the ICACHE_RAM_ATTR macro to interrup service routines (ISRs) and to every …

arduino esp8266 arduino-esp8266 isr
Can breakpoints be used in ISRs?

Can breakpoints be used in interrupt service routines (ISRs)?

debugging breakpoints interrupt isr