| U. Nilsson, S. Streiffert, and A. T 7 rne, Detailed Design of Avionics Control Software, In Proceedings of the 19th IEEE Real-Time Systems Symposium, pp. 82-91, Madrid, Spain, December 1998. |
....task subject to the periods locally maximizing the schedulability of each task. The static priorities of tasks are assigned considering the task precedence given in the task graph. There has been work on applying PCM to the design of real time embedded systems including an avionics control system [12] and a computerized numerical control system [11] While reporting some weaknesses of PCM such as infeasible solutions [12] and the absence of overload handling [11] these papers concluded that PCM provides a useful methodology for the design of real time embedded systems. PCM derives task ....
....considering the task precedence given in the task graph. There has been work on applying PCM to the design of real time embedded systems including an avionics control system [12] and a computerized numerical control system [11] While reporting some weaknesses of PCM such as infeasible solutions [12] and the absence of overload handling [11] these papers concluded that PCM provides a useful methodology for the design of real time embedded systems. PCM derives task temporal parameters for static prioritybased scheduling. However, our design framework uses the earliest deadline first (EDF) ....
U. Nilsson, S. Streiffert, and A. T 7 rne, Detailed Design of Avionics Control Software, In Proceedings of the 19th IEEE Real-Time Systems Symposium, pp. 82-91, Madrid, Spain, December 1998.
....periods are derived from given end to end system constraints. Deadlines and release times are then assigned to individual tasks using the derived periods 1 . While several other techniques exist for deriving task level deadlines and release times (see, for 1 In a recent paper, Nilsson et al. [12] presented an application of PCM on an avionics control software using constraint programming. 5 example, 13, 14, 15, 16, 17, 18] few techniques actually exist for deriving other types of task level constraints. However, Ramamritham [19] and Abdelzaher Shin [20] propose techniques that ....
U. Nilsson, S. Streiffert, and A. Torne, "Detailed Design of Avionics Control Software," Proc. of the IEEE Real-Time Systems Symposium, Madrid, Spain, Dec. 2--4, 1998, pp. 82--91.
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