c for embedded systems pdf

... specialized clock resources in the FPGA. These clock resources typically include phase-locked loops for clock synchronization and dedicated clock distribution paths and may be shared between transceivers. ... static logic called the “context logic.” The context logic is necessary to pro- vide the context of the reconfigurable module, so that hierarchical names in the design and location constraints for ... design .ucf .ngc PR-enabled NGDBuild, Map, and PAR .ncd PRMergeDesign + PR-enabled bitgen Meta-information C code gcc + objcopy EDK genace.tcl partial.bit .bit merged.ace configure.elf .ucf FIGURE

Ngày tải lên: 02/07/2014, 15:20

... This chapter presents an abstract embedded system model that is able to capture a set of applications executing on a multicore execution platform. The model of computation for such systems is formalized ... thank Marius Miku ˇ cionis for providing the format for listing U PPAAL code. References 1. R. Alur, C. Courcoubetis, and D. Dill. Model-checking for real-time sys- tems. In Proceedings of the Fifth ... Exact schedulability anal- ysis for static-priority global multiprocessor scheduling using model- checking. In Software Technologies for Embedded and Ubiquitous Systems, Santorini Island, Greece,

Ngày tải lên: 03/07/2014, 17:20

... a collectionofcommunicating sequential tasks. Each task is characterized by four timing properties, described later. The dependencies between tasks are captured by an acyclic directed graph (called ... that each τ j is characterized by “best-case” and “worst-case” execution times, bcet j ∈ N and wcet j ∈ N, respectively. At the start of each new period, there is a nondeterministic choice concerning ... synchronizer,anallocator,andascheduler. The controller receives ready or Nicolescu/Model-Based Design for Embedded Systems 67842 _C0 05 Finals Page 128 2009-10-13 128 Model-Based Design for Embedded Systems TABLE 5.3 Characterization

Ngày tải lên: 03/07/2014, 17:20

... platform (HW and SW) Platform design-space export Platform mapping Architectural space Application space Platform instance Mapped Function space Platform instance Mapped Platform (architectural ... space) Platform (architectural space) Function space Platform mapping Platform design-space export Function instance Platform instance Function instance FIGURE 10.1 Hourglass diagram and fractal ... upon a complex MPSoC architecture to execute efficiently the H.264 video encoder application and to explore differ- ent communication schemes. Nicolescu/Model-Based Design for Embedded Systems

Ngày tải lên: 03/07/2014, 17:20

... 481 1. enum Clocks 2. t 3. Up_clk 4. Down_clk 6. global_clocks as Set of Clocks = {t} 7. var g_v as Map of Clocks to Integer = 8. {clki −> 0 | clki in global_clocks} 10. Up = new Location(“Up”) ... of the Air Force Office of Scientific Research or the U.S. Government. Nicolescu/Model-Based Design for Embedded Systems 67842 _C0 14 Finals Page 483 2009-10-2 Semantics of Domain-Speci? ?c Modeling ... sponsored in part by the National Science Foundation (grants NSF-CCR-0225610 and NSF-CCF-0820088) and by the Air Force Office of Scientific Research, USAF (grants/contract numbers FA9550-06-0312 and

Ngày tải lên: 03/07/2014, 17:21

... StEvTime: tcn=StEvTime. Nicolescu/Model-Based Design for Embedded Systems 67842 _C0 16 Finals Page 544 2009-10-2 544 Model-Based Design for Embedded Systems TimeOfStEv location is common for both cases, ... the occurrence of a state event • The context switch to the discrete interface 16.6.5 Formalization and Verification of the Simulation Interfaces Behavior This section presents details of the formalization ... is Nicolescu/Model-Based Design for Embedded Systems 67842 _C0 16 Finals Page 540 2009-10-2 540 Model-Based Design for Embedded Systems To continuous simulator From continuous simulator - Activate

Ngày tải lên: 03/07/2014, 17:21

... is simply a MEM Nicolescu/Model-Based Design for Embedded Systems 67842 _C0 20 Finals Page 675 2009-10-2 CAD Tools for Multi-Domain Systems on Chips 675 (micro-electrical-mechanical) phase grating ... of mechanical MEMs, optics, and electronic feedback. The last example shows the power of the angular spec- trum technique to model diffractive optical systems with the speed and accu- racy required ... this system could act as a switch, an optical scanner, Nicolescu/Model-Based Design for Embedded Systems 67842 _C0 20 Finals Page 670 2009-10-2 670 Model-Based Design for Embedded Systems (a) 23

Ngày tải lên: 03/07/2014, 17:21

... for the technical review of the manuscript and for scrutinizing the accompanying code Jeff's contributions include the complete C+ + state machine... section) 1 QSTATE Calc::calc(QEvent const ... switch (e−>sig) { case Q_ENTRY_SIG: dispState("calc"); case Q_INIT_SIG: clear(); Q_INIT(&Calc::ready); case IDC _C: clear(); Q_TRAN(&Calc::calc); case TERMINATE: Q_TRAN(&Calc::final);... Course ... Practical Statecharts in C/ C++: Quantum Programming for Embedded Systems Table of Contents Practical Statecharts in C/ C++−Quantum Programming for Embedded Systems 1 Preface 3 Mission

Ngày tải lên: 12/08/2014, 21:21

... Hardware/Software Codesign Advancements in microelectronics have recently enabled the integration of complete, complex systems on a single chip. To cope with the continuously increasing complexity of such systems, ... Systems Conference, Fall San Francisco [EC++] Embedded C+ + Technical Committee 2001 http://www.caravan.net/ec2plus Eckel, Bruce 1995 Thinking in C+ + Prentice... three self−extracting installation ... techniques, such as critical sections and message queues. However, after the infrastructure for executing active objects is in place, the development of QF−based applications can proceed much

Ngày tải lên: 12/08/2014, 21:21

... Free Software tools? ?for? ?embedded? ?systems Free Software tools? ?for? ?embedded? ?systems Thomas Petazzoni / Michael Opdenacker Free Electrons http://free­electrons.com/ Created with OpenOffice.org 2.x Free Software tools? ?for? ?embedded? ?systems ... © Copyright 2004­2008, Free Electrons Creative Commons Attribution­ShareAlike 2.5 license Jan 24, 2008 http://free­electrons.com Free Software tools? ?for? ?embedded? ?systems C? ?library? ?for? ?the target device C? ?library options ... glibc uClibc Compiled statically glibc uClibc Plain “hello world” 4.6 K 4.4 K 475 K 25 K Busybox 245 K 231 K 843 K 311 K Free Software tools? ?for? ?embedded? ?systems © Copyright 2004­2008, Free Electrons

Ngày tải lên: 20/10/2013, 00:15

... a collectionofcommunicating sequential tasks. Each task is characterized by four timing properties, described later. The dependencies between tasks are captured by an acyclic directed graph (called ... that each τ j is characterized by “best-case” and “worst-case” execution times, bcet j ∈ N and wcet j ∈ N, respectively. At the start of each new period, there is a nondeterministic choice concerning ... synchronizer,anallocator,andascheduler. The controller receives ready or Nicolescu/Model-Based Design for Embedded Systems 67842 _C0 05 Finals Page 128 2009-10-13 128 Model-Based Design for Embedded Systems TABLE 5.3 Characterization

Ngày tải lên: 02/07/2014, 15:20

... ensure the connectivity of a sensor network located in a road tunnel in which an accident has occurred. A number of software components were developed for the scenario. A localization com- ponent ... given SoC platform increasingly... challenges: rising system-on-chip (SoC) platform development costs and 179 180 Model-Based Design for Embedded Systems shorter product market windows Compounding ... robot-position controller, both located in the Tmote Sky processor. Nicolescu/Model-Based Design for Embedded Systems 67842 _C0 06 Finals Page 164 2009-10-1 164 Model-Based Design for Embedded Systems

Ngày tải lên: 02/07/2014, 15:20

... processor p C comm is the communication cost required for the communication of task t with the preceding tasks C succ represents a look-ahead cost concerning the successor tasks, the min- imal cost ... of communicating blocks and directives to assign blocks to processors MpAssign Communication level Set of communicating blocks and required communication components MpCompose Target architecture ... to communicate with other tasks. Blocks are connected through communica- tion channels (in short, channels) via their interfaces. The basic blocks can be grouped in hierarchical blocks or composites.

Ngày tải lên: 02/07/2014, 15:20

... mapping/scheduling technique for MPSoC, in DATE 2009, Nice, France, April... following symbols: circles for the functions, rounded rectang circles to represent the tasks, rectangles for the subsystems, ... The CIC translator generates the executable C codes automatically. Table 8.2 shows the performance result for these nine configurations. For functional parallelism, the best performance can be ... “interrupt clear.” Figure 8.12a shows the generated interfacing code for the IDCT with interrupt. Note that the interfacing code does not access the HW to check the completion of IDCT, but checks the

Ngày tải lên: 02/07/2014, 15:20

... System platform (HW and SW) Function space Mapped Function instance Function instance Function space Mapped Platform (architectural space) Platform instance Platform (architectural space) Platform ... environment for a com- plex MPSoC architecture. The target application corresponds to the H.264 encoder, also called AVC (advanced video coding). Firstly, the specification of the target architecture ... performance, as it implied the fewest clock cycles during the execution for all the communi- cation mapping schemes. The Mesh NoC attained the worse performance in case of mapping all the communication

Ngày tải lên: 02/07/2014, 15:20

... M2_CONNECT(r, out_port, c, read_port); M2_CONNECT(w, out_port, c, write_port); //mapper definition class receive_mapper: public m2_mapper<i_func_receiver, i_arch_receiver> { public: receive_mapper(sc_module_name ... automatically constructs the Spin verification model from the MMM specification, taking care of all system-level constructs. For exam- ple, it can automatically generate a verification model for ... II 277 traces. The automatic trace analyzer can be used in concert with model check- ers. It can perform property verification on a single trace even when other approaches would fail because of

Ngày tải lên: 02/07/2014, 15:20

... of complex physical systems, e.g., systems containing mechanical, electrical, electronic, hydraulic, thermal, con- trol, electric power, or process-oriented subcomponents [46]. The Modelica model ... (1=RxMAC,TxMAC,RxRLC,TxRLC),(2=RxMAC,RxRLC),(3=TxMAC,TxRLC) (4 = Rx MAC), (5)(Rx RLC), (6)(Tx MAC), (7 = Tx RLC) (Sp = Sparc, μB = Microblaze, A7 = ARM7, A9 = ARM9) Nicolescu/Model-Based Design for ... simulation performance, and the accuracy can be quickly analyzed. The untimed M ETRO II UMTS functional model contains 12 processes while the architectural model may contain up to 26 processes. This

Ngày tải lên: 02/07/2014, 15:20

... inside the reconfigurable fabric. The reconfigurable fabric contains four M ONTIUM TPs, which are connected via a CCU to a circuit-switched NoC. The reconfig- urable fabric is connected to the ... packet is received. Nicolescu/Model-Based Design for Embedded Systems 67842 _C0 11 Finals Page 344 2009-10-2 344 Model-Based Design for Embedded Systems PAC CM CM SCM CM PAC PAC PAC IO IO IO IO ... ADC Viterbi decoder IRQ controller SRAM/ SDRAM External bus interface 5-Layer AMBA advanced high-performance bus CCU Network-on-chip Reconfigurable fabric CCU CCU FIGURE 11.6 Block diagram of

Ngày tải lên: 02/07/2014, 15:20

... the prescalar and starting the clock are tasks of the software developer. Knowing the processor clock frequency, and choosing correct prescalar values, you can achieve accurate timer clock periods. The ... instructions to the COPCR register. Interestingly, the COP watchdog is dependent upon the system clock; a clock monitor circuit resets the MCU if the clock stops, and thereby renders the COP watchdog ... to C necessary for targeting an embedded environment, and the common components of a successful development project. C is the language of choice for programming larger microcontrollers (MCU),...

Ngày tải lên: 22/12/2013, 02:17