interrupt Questions
2
Solved
I am learning some basics about Assembly and C. for learning purpose I decide to write a simple program that disable Interrupts and when user wants to type something in the console he/she can't :
...
1
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I am trying to convert a program from Tornado to Asyncio and the first step would be to use the actual asyncio eventloop as described here.
This application runs on an embedded Linux machine, I am...
Layton asked 18/10, 2017 at 16:39
2
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I am new to writing firmware for 8-bit PICs and could use some help with my code. I am using a PIC16F1829 for an LED module which gets RX commands. I am just trying to get the basics setup like tur...
2
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My iPad sound application (iOS 7.1) is able to record while in background. Everything is ok as far as recording is not interrupted while in background. For example if one's has the (stupid?) idea t...
Cowshed asked 10/5, 2014 at 20:37
1
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While executing a loop in my 8086 assembly programs, there is a keyboard key press threshold where if you press a key too many times the PC speaker will start beeping. It's obnoxious, and it slows ...
1
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According to the ACPI spec, The FADT (Fixed ACPI Description Table) table contains a field that reports the SCI interrupt number to OS. The field is defined as below:
I dumped the FADT table on an...
4
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Does an interrupt service routine exist to help me clear the screen of the terminal? Will it work on windows?
2
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I am trying to learn the startup process of an ARM processor by writing my own startup code and linker script. The chip I use is an LPC810, and I followed the examples from http://midibel.com/blink...
0
I am writing some firmware code running in the System Managemnt Mode (SMM) on an Intel platform. I want to fully understand how my SMI handler get started.
I read from the Intel Manual that:
Th...
3
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From java docs on Future.cancel()
boolean cancel(boolean mayInterruptIfRunning)
Attempts to cancel execution of this task. This attempt will fail if the task has already completed, has already...
Iain asked 29/1, 2014 at 23:51
7
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A teammate made the following claim:
"Thread.interrupt() is inherently broken, and should (almost) never be used".
I am trying to understand why this is the case.
Is it a known best practice ...
Simasimah asked 7/1, 2010 at 14:39
3
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I'm new to learning assembly language, and I'm wondering what the command int 21h means. For example:
mov ah,01h
int 21h
Which should read a key from the user.
Poston asked 9/6, 2011 at 13:40
1
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I am developing an embedded program for an intel i386, and I am trying to figure out how to use the hardware timer. I have read here (and other places) that the timer interrupt is 0x08, but this pa...
Brietta asked 13/2, 2017 at 16:24
1
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I'm trying to do something like this
$SIG{ALRM} = sub {
print $line_number_when_alarm_went_off;
};
alarm 10;
# rest of the script
I'm using ALRM as an example, I will end up using a different...
2
Solved
I am reasonably new to the ARM architectures and I am trying to wrap my head around the wake up mechanism.
So first of all I am finding it difficult to find good info on this. ARM's documentation...
1
As I know it "allocate an interrupt line", but
> what is happening after request_irq()?
> How a particular handler is getting called on receiving interrupt?
Can anybody explain it with co...
Flautist asked 21/12, 2016 at 7:25
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Is it possible to set a hardware timer peripheral up on the Raspberry Pi and get an interrupt at a certain time (while running under Linux)? Is there a library/example?
I know you can get an irq w...
Angelikaangelina asked 23/9, 2015 at 8:47
1
I'm working on the irq_lock() / irq_unlock() implementation for an RTOS and found an issue. We want to absolutely minimize how much time the CPU spends with interrupts locked. Right now, our irq_lo...
1
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Hello good people of stack overflow. My problem is an interrupt service routine (ISR) that seemingly never executes! Here's some info on my set up:
I am flashing an avr attiny85. I have the bare bo...
1
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I am learning the Intel Architecture. So far I have encountered several types of interrupts:
SCI: System Control Interrupt, A system interrupt used by hardware to notify the OS of ACPI events. The...
1
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I'm trying to periodically send and Serial string from my STM32F746ZG device, using an interrupt. Most of the code is auto generated by stm32cubemx. I have hardware breakpoints (jlink) set at each ...
Catnip asked 29/10, 2016 at 20:39
2
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I am starting working with the ARM platform (specifically the TI TMS570 family).
I have some code with critical regions where I don't want an exception to occur. So I want to save the IRQ and FIR ...
2
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I want to implement a GPIO-Interrupt, but I dont know how, I also found no real sample or explaination for it.
I already know how to write to Pins, but not much more, please consider that I dont r...
Cyclopean asked 15/10, 2016 at 9:55
3
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I just lost days, literally, ~25 hrs of work, due to trying to debug my code over something simple that I didn't know.
It turns out decrementing an element of a single-byte array in C++, on an AVR ...
3
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I am working on a network driver for an FPGA endpoint that supports multi-message MSI interrupts (not msix) on a PCIe bus. The host processor is an x86 Intel i7 620LM running on CentOS with a 4.2 k...
Telescopy asked 22/12, 2015 at 0:24
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