'Timer interrupts' presentation slideshows

UBC104 Embedded Systems

UBC104 Embedded Systems. Review: Introduction to Microcontrollers. Processors. General purpose processors: 80386 Pentium Core Duo Large number of pins External memory External peripherals . * Figure from Intel 386 DX Datasheet. General Purpose Registers.

1.05k views • 72 slides

CHAPTER 11

CHAPTER 11. INTERRUPTS PROGRAMMING. Interrupts vs. Polling. An interrupt is an external or internal event that interrupts the microcontroller To inform it that a device needs its service A single microcontroller can serve several devices by two ways Interrupts

506 views • 50 slides

Kernel Timers

Kernel Timers. Goals . Learn how to study kernel code. Learn how kernel implements interval timers. Learn how signals work in Linux. Create a user-space mechanism to measure the execution time of a multithreaded program. Kernel Timers. Overview .

768 views • 42 slides

Cross-VM Side Channels and Their Use to Extract Private Keys

Cross-VM Side Channels and Their Use to Extract Private Keys. Yinqian Zhang (UNC-Chapel Hill) Ari Juels (RSA Labs) Michael K. Reiter (UNC-Chapel Hill) Thomas Ristenpart (U Wisconsin-Madison). Motivation. Security Isolation by Virtualization. VM. VM. Crypto Keys. Attacker. Victim.

717 views • 39 slides

System Noise & OS Clock Ticks

System Noise & OS Clock Ticks. Dan Tsafrir Yoav Etsion Dror G. Feitelson Scott Kirkpatrick http://www.cs.technion.ac.il/~dan/papers/Noise05ICS.pdf. Context cont. Many HPC apps. are bulk-synchronous:

511 views • 38 slides

Input/Output

Input/Output. 5.1 Principles of I/O hardware 5.2 Principles of I/O software 5.3 I/O software layers 5.4 Disks 5.5 Clocks 5.6 Character-oriented terminals 5.7 Graphical user interfaces 5.8 Network terminals 5.9 Power management. Chapter 5. Principles of I/O Hardware.

442 views • 28 slides

How to make a pseudo-file

332 views • 24 slides

QSim 1 : Overview

QSim 1 : Overview. Thread safe multicore x86 emulation library using QEMU 2 C++ API for instantiating, controlling, and instrumenting emulated CPUs Guest environment runs: Lightly modified Linux kernel Unmodified 32-bit x86 binaries Instruction-level execution control

341 views • 20 slides

OS Support for Detecting Trojan Circuit Attacks

OS Support for Detecting Trojan Circuit Attacks. Target Attacks. Privilege Escalation Attack : Trojan leverages the memory access mechanism to create a malicious software that escalates its privilege to that of the superuser DoS Attack :

291 views • 13 slides

TMS320F28335 Real-Time Interrupts

TMS320F28335 Real-Time Interrupts. What is a Real-Time Interrupt?. A Real-Time Interrupt is a segment of code that is executed at a set time interval. While this can be done using delays, we may want to have the program preforming other functions between the interrupts.

484 views • 9 slides