tailieunhanh - Programming Embedded Systems II

Tham khảo tài liệu 'programming embedded systems ii', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | ç H H H g -Ú g ặ 0 5 3 g H 0 ậ 6 ặ -P P w ö s 1 ft M M q rl w 3 0 to H H 0 Ö ÿ Michael J. Pont University of Leicester Copyright Michael J. Pont 2002-2004 This document may be freely distributed and copied provided that copyright notice at the foot of each OHP page is clearly visible in all copies. ii Seminar 1 1 Seminar 2 A flexible scheduler for single-processor embedded systems 1 Overview of this seminar 2 Overview of this course 3 By the end of the course you ll be able to . 4 Main course text 5 IMPORTANT Course prerequisites 6 Review Why use C 7 Review The 8051 microcontroller 8 Review The super loop software architecture 9 Review An introduction to schedulers 10 Review Building a scheduler 11 Overview of this seminar 12 The Co-operative Scheduler 13 Overview 14 The scheduler data structure and task array 15 The size of the task array 16 One possible initialisation function 17 IMPORTANT The one interrupt per microcontroller rule 18 The Update function 19 The Add Task function 20 The Dispatcher 22 Function arguments 24 Function pointers and Keil linker options 25 The Start function 28 The Delete Task function 29 Reducing power consumption 30 Reporting errors 31 Displaying error codes 34 Hardware resource implications 35 What is the CPU load of the scheduler 36 Determining the required tick interval 38 Guidelines for predictable and reliable scheduling 40 Overall strengths and weaknesses of the scheduler 41 Preparations for the next seminar 42 .