Hardware/Software Introduction Chapter 1 Introduction

More documents

Recommendations

Info

Increases confidence • Simulating all possible input sequences impossible for most systems – E.g., 32-bit ALU • 2 32 * 2 32 = 2 64 possible input combinations • At 1 million combinations/sec • ½ million years to simulate • Sequential circuits even worse • Can only simulate tiny subset of possible inputs – Typical values – Known boundary conditions • E.g., 32-bit ALU – Both operands all 0’s – Both operands all 1’s • Increases confidence of correctness/completeness • Does not prove Embedded Systems Design: A Unified Hardware/Software Introduction, (c) 2000 Vahid/Givargis 70
Advantages over physical implementation • Controllability – Control time • Stop/start simulation at any time – Control data values • Inputs or internal values • Observability – Examine system/environment values at any time • Debugging – Can stop simulation at any point and: • Observe internal values • Modify system/environment values before restarting – Can step through small intervals (i.e., 500 nanoseconds) Embedded Systems Design: A Unified Hardware/Software Introduction, (c) 2000 Vahid/Givargis 71
Page 1 and 2:
Embedded Systems Design: A Unified
Page 3 and 4:
Embedded systems overview • Embed
Page 5 and 6:
Some common characteristics of embe
Page 7 and 8:
Design challenge - optimizing desig
Page 9 and 10:
Design challenge - optimizing desig
Page 11 and 12:
Time-to-market: a demanding design
Page 13 and 14:
Losses due to delayed market entry
Page 15 and 16:
The performance design metric • W
Page 17 and 18:
Processor technology • The archit
Page 19 and 20: General-purpose processors • Prog
Page 21 and 22: Application-specific processors •
Page 23 and 24: Full-custom/VLSI • All layers are
Page 25 and 26: PLD (Programmable Logic Device) •
Page 27 and 28: Graphical illustration of Moore’s
Page 29 and 30: The co-design ladder • In the pas
Page 31 and 32: Design productivity gap • 1981 le
Page 33 and 34: Summary • Embedded systems are ev
Page 35 and 36: Ch3. GPP: Software Summary • Gene
Page 37 and 38: Ch7. Digital Camera Example Summary
Page 39 and 40: Embedded Systems Design: A Unified
Page 41 and 42: Introduction • Design task - Defi
Page 43 and 44: Automation: synthesis • Early des
Page 45 and 46: Increasing abstraction level • Hi
Page 47 and 48: Gajski’s Y-chart • Each axis re
Page 49 and 50: Two-level minimization • Represen
Page 51 and 52: Minimum cover: K-map approach • K
Page 53 and 54: Minimum cover: heuristics • K-map
Page 55 and 56: Example • Minimized 2-level logic
Page 57 and 58: Technology mapping • Library of g
Page 59 and 60: Integrating logic design and physic
Page 61 and 62: Behavioral synthesis • High-level
Page 63 and 64: System synthesis • Tasks (cont.)
Page 65 and 66: Temporal vs. spatial thinking • D
Page 67 and 68: Verification • Ensuring design is
Page 69: Simulation • Create computer mode
Page 73 and 74: Simulation speed • Relative speed
Page 75 and 76: Reducing precision/accuracy • Don
Page 77 and 78: Integrating GPP/SPP simulations •
Page 79 and 80: Emulators • General physical devi
Page 81 and 82: Reuse: intellectual property cores
Page 83 and 84: Advantages/disadvantages of hard co
Page 85 and 86: New challenges to processor provide
Page 87 and 88: New challenges to processor users
Page 89 and 90: Waterfall method • Not very reali
Page 91 and 92: General-purpose processor design mo
Page 93 and 94: Summary • Design technology seeks
show all

Hardware/Software Introduction Chapter 1 Introduction

Create successful ePaper yourself

Delete template?

Save as template?