| E. Erpenbach. Compilation, Worst-Case Execution Times and Schedulability Analysis of Statecharts Models. PhD thesis, Department of Mathematics and |
....for a generalized version) However much less care is taken to make the implementation e#cient. The focus is more on code readability an use of natural constructs of target language than e#ciency. The usefulness of such tools for constrained embedded systems is not usually considered. Erpenbach[7] in his thesis focuses mostly on the worst case reaction time analysis, proposing only a very simple hierarchical representation based on switch statements. He also addresses the double bu#ering problem for variables, proposing an optimization which reorders the transitions to decrease the need ....
E. Erpenbach. Compilation, Worst-Case Execution Times and Schedulability Analysis of Statecharts Models. PhD thesis, Department of Mathematics and Computer Science of the University of Paderborn, Apr. 2000.
....a software process, WCET analysis is not su#cient. In this case the worst case response time (WCRT) of a system is needed. State charts are a graphical method to specify system behavior. This language allows the description of concurrent processes with communication across hierarchical levels. In [4] a method is presented to validate the timing behavior of state charts. Since communications are blocking on both sides, every communication represents a synchronization point , which makes a timing analysis easier. However the use of one sided communication leeds to more e#cient implementations. ....
....of the real time behavior of systems of concurrent software processes. Hereby the WCRT of the system can be determined. Additionally the system is checked for potential data loss and deadlock. While other approaches only discuss systems with synchronization at both sides of communications [4] or simply assume that the rate of sending is less or equal to the rate of receiving [3] our approach finds possible data loss and deadlocks. Data loss occurs when the rate of sending data is higher, than the rate of data consumption. Since production and consumption rates are dependent on ....
E. Erpenbach and P. Altenbernd. Worst-Case Execution Times and Schedulability Analysis of Statechart Models. In 11th Euromicro Conference on Real Time Systems, 1999.
....concepts for integration of Real Time aspects by, for instance, integration of the RealTime Object Orient Modeling method [55] The Real Time aspect is given in this method by modelling the behaviour with state charts. The execution time of the automata can be determined (compare for example [28]) and the timing behaviour of the composed system can be evaluated. Other approaches introduce the aspect of time by annotations in the sequence charts [3] The drawback of the use of UML tools is that this modelling introduces one further translation step which can lead to further overhead by ....
....instance systems with one CPU and a directly coupled FPGA. The actions of both automata are still asynchronous due to the difficult timing of sequential software on superscalar processors. The problem of estimating the execution times of transitions of a State Chart implementation is discussed in [28]. One result of this thesis is that nearly all transitions, which are code sequences, have different execution times. This underlines the asynchronous assumptions about the communication. The device behaviour and the driver behaviour can be seen as two automata, each controlling an assigned ....
Edwin Erpenbach. Compilation, Worst-Case Execution Times and Schedulability Analysis of Statemate Models. PhD thesis, University Paderborn, 2000. check291001.
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E. Erpenbach. Compilation, Worst-Case Execution Times and Schedulability Analysis of Statecharts Models. PhD thesis, Department of Mathematics and
No context found.
E. Erpenbach and P. Altenbernd. Worst-Case Execution Times and Schedulability Analysis of Statecharts Models. In Proceedings of the 11th Euromicro Conference on Real Time Systems, York, June 1999.
No context found.
E. Erpenbach and P. Altenbernd. Worst-Case Execution Times and Schedulability Analysis of Statecharts Models. In Proceedings of the 11th Euromicro Conference on Real Time Systems, York, June 1999.
No context found.
E. Erpenbach and P. Altenbernd. Worst-Case Execution Times and Schedulability Analysis of Statecharts Models. In Proceedings of the 11th Euromicro Conference on Real Time Systems, York, June 1999.
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