REAL-TIME SYSTEMS DESIGN AND ANALYSIS phần 2 pptx

... including image processing, avionics systems, and medical systems, and the real-time design issues are the same for them as they are for most other systems. 44 2 HARDWARE CONSIDERATIONS FFFFFFFF FFFFFF00 FFFFFE00 FFC00000 DMA Memory-mapped ... processor and support tool set. 2. 5 INPUT/OUTPUT 49 Interrupt Signal Program Counter CPU Interrupt-Return Location Interrupt-Handler...

Ngày tải lên: 13/08/2014, 08:20

... 416 8.3 .2 Software Black Boxes / 417 CONTENTS xi 5 .2. 3 Modularity / 23 2 5 .2. 4 Anticipation of Change / 23 4 5 .2. 5 Generality / 23 5 5 .2. 6 Incrementality / 23 5 5 .2. 7 Traceability / 23 5 5.3 The Design ... / 357 7 .2. 2 Analysis of Polled Loops / 364 7 .2. 3 Analysis of Coroutines / 364 7 .2. 4 Analysis of Round-Robin Systems / 364 7 .2. 5 Response-Time Analysis f...

Ngày tải lên: 13/08/2014, 08:20

... model. 3 .2 THEORETICAL FOUNDATIONS OF REAL-TIME OPERATING SYSTEMS 95 Table 3 .2 Sample task set for utilization calculation τ i e i p i u i = e i /p i τ 1 1 4 0 .25 τ 2 2 5 0.4 τ 3 5 20 0 .25 0 4 8 12 ... framesize calculation τ i p i e i D i τ 2 15 1 14 τ 3 20 2 26 τ 4 22 3 22 3.3 INTERTASK COMMUNICATION AND SYNCHRONIZATION 101 completed processing the x and y data,...

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... complex diagrams. 4.5 STRUCTURED ANALYSIS AND DESIGN Methods for structured analysis and structured design (SASD) have evolved over almost 30 years and are widely used in real-time applications, probably ... Acronyms 1.4 References 1.5 Overview 2. Overall Description 2. 1 Product Perspective 2. 2 Product Functions 2. 3 User Characteristics 2. 4 Constraints 2. 5 Assumptio...

Ngày tải lên: 13/08/2014, 08:20

... presence and for counting vehicles passing through the intersection. 2. 2 Product Perspective 2. 2.1 System Interfaces These are described in detail in the sections below. 2. 2 .2 User Interfaces 2. 2 .2. 1 ... Design and Analysis, By Phillip A. Laplante ISBN 0-471 -22 855-9  20 04 Institute of Electrical and Electronics Engineers 22 5 4.10 APPENDIX: CASE STUDY IN SOFTWARE RE...

Ngày tải lên: 13/08/2014, 08:20

... Team 2 Version: 1.0 Created: 30-Nov -20 02 18:30:05 Updated: 09-Dec -20 02 08:03:00 1 setAspect(aspect) 1.1 m_Aspect: = getAspect() 1 .2 m_Count: = getCount() 2 ignoreState() 2. 1 watchState() 2. 2 resetState() 3 ... SPECIFICATION 26 9 Same messages as m_IncidentLog. Name: IntersectionController- Maintenance Collabor ation Author: Team 2 Version: 1.0 Created: 03-Dec -20 02 15 :27...

Ngày tải lên: 13/08/2014, 08:20

... Override Author: Team 2 Version: 1.0 Created: 04-Dec -20 02 08:30 :25 Updated: 05-Dec -20 02 18: 52: 22 {t0 = 0} dispatchCommand(command = Activate Manual Override) {t0 <= 10 ms} onActivate(type) {t0 <= 20 ms} onOverrideActivated(type) m_PreviousMode ... e 22 Vehicle Entrance 3.3.1.1, Table 14 (20 ) 3.3.5.4, Figur e 22 Vehicle Exit 3.3.1.1, Table 14 (21 ) 3.3.5.4, Figur e 22 V...

Ngày tải lên: 13/08/2014, 08:20

... like 24 6810 121 4161 820 22 Time in microseconds 24 26 F 12 D 12 E 12 F9 E9 F8 D8 E8 (flush) F7 D7 D6 E5 E6 E7 F5 D5 F6 F4 D4 E4 F3 D3 E3 F2 D2 E2 F1 D1 E1 This yields a total execution time of 26 microseconds. ... R1,R2 ; R1 < R1 + R2 TEST R1,R2 ; compare R1 and R2, set condition code JGE @L2 ; goto L2 if R1 >= R2 JMP @END ; goto END @L1 ADD R1, R2 ; R1 < R1 + R2 JMP @EN...

Ngày tải lên: 13/08/2014, 08:20

... Press, Boca Raton, FL, 20 01. Real-Time Systems Design and Analysis, By Phillip A. Laplante ISBN 0-471 -22 855-9  20 04 Institute of Electrical and Electronics Engineers 445 420 8 ENGINEERING CONSIDERATIONS The ... N 1 + N 2 (8.3) The program volume, V ,isdefinedas V = N log 2 n(8.4) The potential volume, V ∗ , is defined as V ∗ = (2 + n 2 ) · log 2 (2 +n 2 )(8.5) 408...

Ngày tải lên: 13/08/2014, 08:20

... techniques, 323 – 325 recursion, 325 typing, 323 , 326 types of, 323 Procedural-oriented design: defined, 23 7 23 8 using finite state machines 24 6 24 7 Parnas partitioning, 23 8 23 9 structured design (SD), 23 7, 23 9 24 5 Process-block ... 324 call-by-value, 324 Cardelli’s metrics and, 329 characteristics of, generally, 55, 23 5 dynamic memory allocation, 323 , 325 – 326...

Ngày tải lên: 13/08/2014, 08:20