Real-Time Programming Languages - Operating Systems

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Esterel For further study Gerard Berry, Esterel Language Primer http://www.esterel-technologies.com/files/primer.zip Gerard Berry Video of Artist summer school 2008 http://www.artist-embedded.org/artist/Videos-Slides (Prof. Christian Hochberger's “Embedded Systems” moved on to another Uni) Caveat: This lecture: introduction into principles only Ignored: Extensive Tool Chain, Verification, ... WS 2013/14 Real-Time Systems, Real-Time Prog. Languages / Hermann Härtig 4
Synchronous Systems → Synchronous Languages Gerard Berry: Our approach is based on the standard principle of separation of concerns. First, write the program at the logical level and make use of all the mathematics available there. Then, implement the program using the best available automatic synthesis tools, and check that the result is practically OK. Gerard Berry Ideal Systems produce their outputs synchronously with their inputs. WS 2013/14 Real-Time Systems, Real-Time Prog. Languages / Hermann Härtig 5
Page 1 and 2: Real-Time Systems Hermann Härtig R
Page 3: RT Language Classes Synchronous HLL
Page 7 and 8: Esterel at a glance Most statements
Page 9 and 10: Esterel „Data“: Variables and S
Page 11 and 12: Signals vs Variables 01 Emit Count(
Page 13 and 14: Examples (all by Berry): ABRO Speci
Page 15 and 16: Speed Specification SPEED: Count th
Page 17 and 18: Few general points Ada has “Annex
Page 19 and 20: Concurrency Tasks ● ● ● ● a
Page 21 and 22: Termination of Tasks Every task has
Page 23 and 24: The Rendezvous Based on client/serv
Page 25 and 26: In detail task executing Server Cli
Page 27 and 28: Select Statement ● ● Arbitrary
Page 29 and 30: Example: Resource with Locking 01 0
Page 31 and 32: Tasks ./. Protected Objects 01 02 0
Page 33 and 34: Fixed Priorities ● task (type) T
Page 35 and 36: Active Priority Base priority or
Page 37 and 38: EDF Dispatching How to set deadline
Page 39 and 40: Mixed Scheduling Policies, example
Page 41 and 42: Explicit Request Ordering: Requeue
Page 43 and 44: Timing events 01 02 03 04 05 06 07
Page 45 and 46: Example: Watchdog 01 02 03 04 05 06
Page 47 and 48: Time: Delay Statement 01 02 03 04 0
Page 49 and 50: Delay and Select, client side(1) 01
Page 51 and 52: Example 01 02 03 04 05 06 07 select
Page 53 and 54: Example: Operator/Subscriber 01 02
Page 55 and 56:
Example: Operator/Subscriber 01 02
Page 57 and 58:
Recurrent Tasks (1) 01 02 03 04 05
Page 59 and 60:
Recurrent Tasks (3) Periodic tasks
Page 61 and 62:
Example 01 02 03 04 05 06 07 08 09
Page 63 and 64:
Example 01 02 03 04 05 06 07 08 09
Page 65 and 66:
Missing in this RT-HLL lecture ●
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Real-Time Programming Languages - Operating Systems

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