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| Author | Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico | ||||
| Title | Quantized Feedback Control Software Synthesis from System Level Formal Specifications for Buck DC/DC Converters | Type | Report | ||
| Year | 2011 | Publication | Abbreviated Journal | ||
| Volume | abs/1105.5640 | Issue | Pages | ||
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| Abstract | Many Embedded Systems are indeed Software Based Control Systems (SBCSs), that is control systems whose controller consists of control software running on a microcontroller device. This motivates investigation on Formal Model Based Design approaches for automatic synthesis of SBCS control software. In previous works we presented an algorithm, along with a tool QKS implementing it, that from a formal model (as a Discrete Time Linear Hybrid System, DTLHS) of the controlled system (plant), implementation specifications (that is, number of bits in the Analog-to-Digital, AD, conversion) and System Level Formal Specifications (that is, safety and liveness requirements for the closed loop system) returns correct-by-construction control software that has a Worst Case Execution Time (WCET) linear in the number of AD bits and meets the given specifications. In this technical report we present full experimental results on using it to synthesize control software for two versions of buck DC-DC converters (single-input and multi-input), a widely used mixed-mode analog circuit. | ||||
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| Publisher | CoRR, Technical Report | Place of Publication | Editor | ||
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| Notes | Approved | yes | |||
| Call Number | Sapienza @ mari @ | Serial | 106 | ||
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| Author | Mari, Federico; Melatti, Igor; Salvo, Ivano; Tronci, Enrico | ||||
| Title | Synthesizing Control Software from Boolean Relations | Type | Journal Article | ||
| Year | 2012 | Publication | International Journal on Advances in Software | Abbreviated Journal | Intern. Journal on Advances in SW |
| Volume | vol. 5, nr 3&4 | Issue | Pages | 212-223 | |
| Keywords | Control Software Synthesis; Embedded Systems; Model Checking | ||||
| Abstract | Many software as well digital hardware automatic
synthesis methods define the set of implementations meeting the given system specifications with a boolean relation K. In such a context a fundamental step in the software (hardware) synthesis process is finding effective solutions to the functional equation defined by K. This entails finding a (set of) boolean function(s) F (typically represented using OBDDs, Ordered Binary Decision Diagrams) such that: 1) for all x for which K is satisfiable, K(x, F(x)) = 1 holds; 2) the implementation of F is efficient with respect to given implementation parameters such as code size or execution time. While this problem has been widely studied in digital hardware synthesis, little has been done in a software synthesis context. Unfortunately, the approaches developed for hardware synthesis cannot be directly used in a software context. This motivates investigation of effective methods to solve the above problem when F has to be implemented with software. In this paper, we present an algorithm that, from an OBDD representation for K, generates a C code implementation for F that has the same size as the OBDD for F and a worst case execution time linear in nr, being n = |x| the number of input arguments for functions in F and r the number of functions in F. Moreover, a formal proof of the proposed algorithm correctness is also shown. Finally, we present experimental results showing effectiveness of the proposed algorithm. |
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| Publisher | IARIA | Place of Publication | Editor | Luigi Lavazza | |
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| ISSN | 1942-2628 | ISBN | Medium | ||
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| Notes | Approved | yes | |||
| Call Number | Sapienza @ melatti @ | Serial | 108 | ||
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| Author | Mari, Federico; Melatti, Igor; Tronci, Enrico; Finzi, Alberto | ||||
| Title | A multi-hop advertising discovery and delivering protocol for multi administrative domain MANET | Type | Journal Article | ||
| Year | 2013 | Publication | Mobile Information Systems | Abbreviated Journal | Mobile Information Systems |
| Volume | 3 | Issue | 9 | Pages | 261-280 |
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| Publisher | IOS Press | Place of Publication | Editor | ||
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| ISSN | 1574-017x (Print) 1875-905X (Online) | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Sapienza @ melatti @ | Serial | 109 | ||
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