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TinyRealTime - An EDF Kernel for the Atmel ATmega8L AVR

Cervin, Anton LU and Henriksson, Dan LU (2004) In Report TFRT 7608.
Abstract
This report describes the design and implementation of {TinyRealTime}, an event-based real-time kernel for the Atmel AVR ATmega8L 8-bit micro-controller. The kernel is event-based and supports fully preemptive earliest-deadline-first scheduling of tasks. Semaphores are provided to support task synchronization. The focus of the report is on the memory management, timing, and internal workings of the kernel. <p> The flash memory footprint of the kernel is approximately 1200 bytes and it occupies 11 bytes of SRAM memory for the kernel data structure plus an additional 11 bytes for each task and one byte for each semaphore. An application example is described, where the real-time kernel is used to implement concurrent control of two ball... (More)
This report describes the design and implementation of {TinyRealTime}, an event-based real-time kernel for the Atmel AVR ATmega8L 8-bit micro-controller. The kernel is event-based and supports fully preemptive earliest-deadline-first scheduling of tasks. Semaphores are provided to support task synchronization. The focus of the report is on the memory management, timing, and internal workings of the kernel. <p> The flash memory footprint of the kernel is approximately 1200 bytes and it occupies 11 bytes of SRAM memory for the kernel data structure plus an additional 11 bytes for each task and one byte for each semaphore. An application example is described, where the real-time kernel is used to implement concurrent control of two ball and beam laboratory processes using six application tasks. (Less)
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author
organization
publishing date
type
Book/Report
publication status
published
subject
keywords
Real-time kernel, Atmel AVR, Event-based, Earliest-deadline-first, Synchronization, Memory management, Control system application
in
Report TFRT
volume
7608
publisher
Department of Automatic Control, Lund Institute of Technology (LTH)
ISSN
0280-5316
language
English
LU publication?
yes
id
a3f94f9d-dcd3-46d7-9894-e84518a32eae (old id 8602624)
date added to LUP
2016-02-15 18:28:26
date last changed
2016-04-16 03:28:30
@techreport{a3f94f9d-dcd3-46d7-9894-e84518a32eae,
  abstract     = {This report describes the design and implementation of {TinyRealTime}, an event-based real-time kernel for the Atmel AVR ATmega8L 8-bit micro-controller. The kernel is event-based and supports fully preemptive earliest-deadline-first scheduling of tasks. Semaphores are provided to support task synchronization. The focus of the report is on the memory management, timing, and internal workings of the kernel. &lt;p&gt; The flash memory footprint of the kernel is approximately 1200 bytes and it occupies 11 bytes of SRAM memory for the kernel data structure plus an additional 11 bytes for each task and one byte for each semaphore. An application example is described, where the real-time kernel is used to implement concurrent control of two ball and beam laboratory processes using six application tasks.},
  author       = {Cervin, Anton and Henriksson, Dan},
  institution  = {Department of Automatic Control, Lund Institute of Technology (LTH)},
  issn         = {0280-5316},
  keyword      = {Real-time kernel,Atmel AVR,Event-based,Earliest-deadline-first,Synchronization,Memory management,Control system application},
  language     = {eng},
  series       = {Report TFRT},
  title        = {TinyRealTime - An EDF Kernel for the Atmel ATmega8L AVR},
  volume       = {7608},
  year         = {2004},
}