8255 I/O. Overview 68HC11 pulse accumulator example: The Egg-O-Matic More about the Intel 8255A Overview of the Motorola 68HC24.
TODAY’S FORECAST: It’s ADD With a Slight Chance of Hyperactivity.
HW/SW Interface Operating Systems Design and Implementation.
Effects of Clock Resolution on the Scheduling of Interactive and Soft Real- Time Processes by Yoav Etsion, Dan Tsafrir, Dror G. Feitelson Presented by.
Daddy! -- Where do instructions come from? Program Sequencer controls program flow and provides the next instruction to be executed Straight line code,
CS61C L26 Interrupt Review © UC Regents 1 CS61C - Machine Structures Lecture 26 - Review of Interrupts December 6, 2000 David Patterson cs61c
OS Fall ’ 02 Processes Operating Systems Fall 2002.
Resolving interrupt conflicts An introduction to reprogramming of the 8259A Interrupt Controllers.
1Quiz Modify HelloWorld2.java; –Remove (or comment out) the following 4 lines: Thread thread1 = new Thread(runnable1); Thread thread2 = new Thread(runnable2);
Chapter 6 Interrupts and Resets. Basics of Interrupts (1 of 4) What is an interrupt? –A special event that requires the CPU to stop normal program execution.
Electrical and Computer Engineering iLights Nick Wittemen, EE Chris Merola, EE José Figueroa, EE Matt Ryder, EE Comprehensive Design Review.
Copyright © 2001 Stephen A. Edwards All rights reserved Real-Time Operating Systems Prof. Stephen A. Edwards.