PPT-Timers and Interrupts

Anurag Dwivedi Let Us Revise MicroControllers A small computer integrated in a single IC Has IO pins RAM and Memory We Use Atmega 16 Software Used CvAvr Editor and Compiler. Ganesh Pitchiah. . What’s an MCU ?. Frequency = 8 MHz. Time Period = 1/f. = 0.125 us . Code for Switching LED. int a; . // . Define . variable . Xen. Bhanu Vattikonda. with . Sambit. Das and . Hovav. . Shacham. 2. Motivation . Project goals. Goals of the paper. Discussion . Future work. Motivation. 3. Recent research efforts have shown that covert channel attacks are possible in the cloud using fine grained timers . Core Isolation. Nawneet. . Anand. Agenda. What is core Isolation ?. Why Isolate? . Isolate From? . How to Isolate? . How . to test?. Test result.. 2. What is core isolation? . Core Isolation is a technique that allows a task to have the core dedicated to its needs until it . Produced by Dave Foord. Terms of use. These timers are free for anyone to use within education or not for profit organisations.. You are entitled to download this presentation and add to your own internal system (e.g. VLE) to distribute to others.. Sachin. . Katti. EE107 . Fall 2017. Lecture . 3. Timers and Interrupts. What time is the Apple Watch tracking?. Clock. (all the time | sec) . Alarm. (all the time | sec). Stopwatch . (when open | . David Ferry, Chris Gill. CSE 422S - Operating Systems Organization. Washington University in St. Louis. St. Louis, MO 63130. 1. Why Interrupts?. Interrupts allow a currently executing process to be preempted. s and. . Time. r. s. An. . embed. d. ed. . s. y. s. t. em. . h. a. v. e. . t. o. . r. espo. n. d. . t. o. . e. v. e. n. ts. . whe. r. e. . t. i. m. i. ng. . i. s. . a. . k. e. y. c. on. s. Opto. -isolators, . Triacs. , and Thermistors. Alex Buchanan. Aaron May. Peter Ngo. Reason for Interrupts. You might want a certain subroutine executed immediately after a request from an external device or from an internal program, providing certain conditions are met.. Countdown timers for PowerPoint Produced by Dave Foord Terms of use These timers are free for anyone to use within education or not for profit organisations. You are entitled to download this presentation and add to your own internal system (e.g. VLE) to distribute to others. Fall 2014. Hadi Esmaeilzadeh. hadi@cc.gatech.edu. . Georgia Institute of Technology. Some slides adopted from Prof. . Milos . Prvulovic. Better Devices. Now SW, KEY can be read. Problem: several instructions needed to detect change. Produced by Dave Foord. Terms of use. These timers are free for anyone to use within education or not for profit organisations.. You are entitled to download this presentation and add to your own internal system (e.g. VLE) to distribute to others.. The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand 1. CSE 2431: Introduction to Operating Systems. Instructor: Adam C. Champion, Ph.D.. Outline. Clock Hardware. Clock Software. Soft Timers. 2. Two Types of Clocks. Simple clock: tied to 110- or 220-volt power line, causes an interrupt at every voltage cycle (50 or 60 Hz)..