personal digital assistants in embedded systems

... “Simplifying the integration of processing elements in computing systems using a programmable controller,” in Proceedings of 13th Annual IEEE Symposium on Field-Programmable Custom Computing Machines ... appealing Furthermore, devices traditionally categorized as embedded systems, such as PDAs (personal digital assistants) and cellular phones, are becoming increasingly multipurpose These systems ... to the increasingly complex informational and entertainment systems in newer automobiles [54, 55] IP companies such as Drivven provide cores for many engine control systems (such as fuel injection)

Ngày tải lên: 22/06/2014, 22:20

... Processing in Embedded Systems Priyabrata Sinha Speech Processing in Embedded Systems ABC Priyabrata Sinha Microchip Technology, Inc., Chandler AZ, USA priyabrata.sinha@microchip.com Certain Materials ... exposure to signal processing fundamentals Increasingly, the system software and hardware developers who are involved in integrating speech processing algorithms in embedded end-applications ... production, 37–39, 43 I Industrial control, Infinite impulse response (IIR), 30–35 Input sampling rate, 96 Intercom systems, 128, 136, 138 Inter-integrated circuit (I2 C), 87–90 Interpolation, 35–36

Ngày tải lên: 08/03/2016, 11:38

... phenomenon denoted as ‘open innovation’ Bringing open innovation and embedded systems together bears a huge potential Applying open innovation to existing embedded systems assumes that the system ... open innovation platform itself is rather new and exciting To illuminate open innovation in embedded systems, Constantin Söldner addresses the following aspects: x Technical characteristics of embedded ... innovation in embedded systems x Open innovation in embedded systems without opening Thus, the author provides comprehensive insight on open innovation in embedded systems Researchers as well as practitioners

Ngày tải lên: 20/01/2020, 08:26

... framework for embedded systems- on-chip”, Proceedings of the 20th International Conference on VLSI Design held jointly with 6th International Conference on Embedded Systems, Bangalore, India, pp 527–533, ... Motivations Embedded systems are ever present in contemporary society and they are supposed to make our lives more comfortable In industry, embedded systems are used to manage and control complex systems ... 1.1 Embedded systems 1.1.1 Main components of embedded systems 1.2 Memory management for decreasing power consumption, performance and area in embedded systems

Ngày tải lên: 17/02/2021, 15:13

... evolved in the context of portable personal computers and usually not fit in the limited-resource scenario typical of embedded systems Other initiatives in the scope of embedded operating systems, ... which finalizes the process, consuming the final resource in the FULL Enable place, and inserting one resource back into the Atomic Execution place The entire process results in a resource being ... accounting infrastructure in hand, the scheduler can predict battery discharge without having to physically interact with it, thus sparing the corresponding energy In this way, battery monitoring

Ngày tải lên: 01/11/2022, 08:30

... and Control Systems Suecesflitrdaction of digital L&C systems into US nuclear powerplants faces sever ehllenpe: + uncerainty inherent ininrodoton of new technology + shift of existing technology ... allows obtaining the safety and eiabty benefits sailbie ram this ecology while avoiding the inoue in of offieting safety problems “The transition from analog to digital L&C systems in rucear ... đElaesing and defining issues and providing gsdance for resolving these ines rather han developing spe cif censing evita — "11" land worked on tone iss, These igh sues aes Be ‘wo myorinterwined

Ngày tải lên: 31/03/2014, 14:20

... adaptive system model in- cluding the HW/SW unified interface and the configuration model. In Section 3, we present the main issues and solutions 2 EURASIP Journal on Embedded Systems involved with the ... load- ing, (ii) datapath modification: HAL loading, (iii) HW task suppression: bitstream removing or clock stopping, corresponding to SW task in SW state, (iv) HW task insertion: bitstream loading, ... Xilinx FPGA in order to include bitstream dynamic manage- ment. REFERENCES [1] J. L. Wong, G. Qu, and M. Potkonjak, “An on-line approach for power minimization in qos sensitive systems, ” in Proceedings

Ngày tải lên: 22/06/2014, 05:20

... adaptive system model in- cluding the HW/SW unified interface and the configuration model. In Section 3, we present the main issues and solutions 2 EURASIP Journal on Embedded Systems involved with the ... load- ing, (ii) datapath modification: HAL loading, (iii) HW task suppression: bitstream removing or clock stopping, corresponding to SW task in SW state, (iv) HW task insertion: bitstream loading, ... Xilinx FPGA in order to include bitstream dynamic manage- ment. REFERENCES [1] J. L. Wong, G. Qu, and M. Potkonjak, “An on-line approach for power minimization in qos sensitive systems, ” in Proceedings

Ngày tải lên: 22/06/2014, 19:20

... market, such as medical imaging and rendering graphical data, are being considered. 3. MULTIPROCESSOR -EMBEDDED SYSTEMS The increasing demand for computational power is leading embedded system developers ... however, that in a few cases ASMP- Linux needs to interact with the hardware devices (for in- stance, when dealing with the local timer, as explained in Section 5.3). In these cases, ASMP-Linux makes ... The ASMP-Linux patch modifies in a few places the scheduling algorithm of the standard Linux kernel. In partic- ular, since version 2.6, Linux supports the so-called schedul- ing domains [25]:

Ngày tải lên: 22/06/2014, 19:20

... beginner-much as I was when I graduated from college She has a background in computer science or engineering and a few years of programming experience The beginner is interested in writing embedded ... essence and present only those things that programmers definitely need to know about embedded systems Intended Audience This is a book about programming embedded systems in C and C++ As such, it assumes ... workplaces (fax machines, pagers, laser printers, cash registers, and credit card readers) are embedded systems It seems inevitable that the number of embedded systems will continue to increase rapidly

Ngày tải lên: 05/08/2014, 10:21

... SCC */ #define SCC_INT 17 /* * On-Chip Timer/Counters */ #define TIMER0_INT 8 #define TIMER1_INT 18 #define TIMER2_INT 19 /* * On-Chip Serial Ports */ #define RX_INT 20 #define TX_INT 21 5.4 ... ordinary computer programming Up to this point in the book we have been building the infrastructure for embedded programming But the topics we're going... Most of the actual hardware initialization ... #define INSERV (PCB_BASE + 0x0C) #define REQST (PCB_BASE + 0x0E) #define INSTS (PCB_BASE + 0x10) /* * Timer/Counters */ #define TCUCON (PCB_BASE + 0x12) #define T0CNT (PCB_BASE + 0x30) #define

Ngày tải lên: 05/08/2014, 10:21

... controller. If the DRAM in your system does not appear to be working properly, it could be that the DRAM controller either is not initialized or has been initialized incorrectly. When deciding which type ... reprogrammable. These advantages are overwhelming and the use of Flash memory has increased dramatically in embedded systems as a direct result. From a software viewpoint, Flash and EEPROM technologies ... number of bytes remaining is reduced by one. When the number of bytes remaining reaches zero, the block transfer ends and the DMA controller sends an interrupt to the processor. In a typical DMA

Ngày tải lên: 05/08/2014, 10:21

... contained within the 80188EB processor. I have chosen to implement this driver-and all of the remaining examples in the book -in C++. Although C++ offers no additional assistance over C in accessing ... pNext have meaning only within the context of a linked list of active software timers. This linked list is ordered by the number of ticks remaining for each timer. So count contains information ... of clock ticks remaining after all of the timers ahead of it in the list have expired. Finally, there is a private method called Interrupt -our interrupt service routine. The Interrupt method is

Ngày tải lên: 05/08/2014, 10:21

... respectively. In order to keep tasks and their contexts organized, the operating system maintains a bit of information about each task. Operating systems written in C often keep this information in a ... periodic timer that has gone out of scope from remaining in the timer list indefinitely and any pointers to the "dead" timer from remaining in the system. For completeness, it might be nice ... scheduling algorithms: first -in- first-out, shortest job first, and round robin. These are simple scheduling algorithms that are used in nonembedded systems. First -in- first-out (FIFO) scheduling

Ngày tải lên: 05/08/2014, 10:21

... taken. Add the calling task to the waiting list. // pCallingTask = os.pRunningTask; pCallingTask->state = Waiting; os.readyList.remove(pCallingTask); waitingList.insert(pCallingTask); os.schedule(); ... analysis simply will not suffice in such systems. Most of the commercial embedded operating systems available today are designed for possible inclusion in real-time systems. In the ideal case, this means ... "priority inheritance." This solution has Low's priority increased to that of High as soon as High begins waiting for the mutex. Some operating systems include this "fix" within

Ngày tải lên: 05/08/2014, 10:21

... allocating adequate space * for the string. * * Warnings: This function does not block waiting for a newline. * If a complete string is not found, it will return * whatever is available in the ... lines of code. Inline functions provide a perfect example of how execution speed and code size are sometimes inversely linked. The repetitive addition of the inline code will increase the size ... in your program. The compiler-supplied floating-point library contains a set of software subroutines that emulate the instruction set of a floating- point coprocessor. Many of these functions take

Ngày tải lên: 05/08/2014, 10:21

... switch The process of switching from one task to another in a multitasking operating system. A context switch involves saving the context of the running task and restoring the previously saved context ... into it. digital signal processor A device that is similar to a microprocessor, except that the internal CPU has been optimized for use in applications involving discrete-time signal processing. ... used to distinguish the computer on which the debugger is running from the embedded system that is being developed. I ICE In- Circuit Emulator. See emulator. I/O Input/Output. The interface between

Ngày tải lên: 05/08/2014, 10:21

... The main Windows procedure, WinMain(), performs only basic initializations and then invokes the dialog procedure int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmdLine, int iCmdShow) ... me the best possible lesson in lucid writing I also thank Justin Fulmer, for polishing my drawings and integrating them into the final version of the book I am indebted to Jeff Claar, for ... consistently indicate that C and C++ clearly dominate embedded systems programming The vast majority (some 80 percent) of embedded. .. can start using immediately without investing in sophisticated

Ngày tải lên: 12/08/2014, 21:21

... Thinking in C++ Prentice... three self−extracting installation programs, which you can install by simply clicking on the links under Microsoft Windows C.2.1 Source Code The self−extracting installation ... Priority Inversions", Embedded Systems Programming, August, 76−81 Kalinsky, David 2001 "Queueing Theory for Dummies", Embedded Systems Programming, April,... Niall, 2000."Open Source Point/Counterpoint: ... typical setup will install all source... probably noticed in the previous examples, dynamic binding always involves a level of indirection in method invocation In C, this indirection can be

Ngày tải lên: 12/08/2014, 21:21

... determining I and Q values for each symbol (“slicing”) 5. decoding and de-interleaving 6. expansion to original bit stream 7. digital- to-analog conversion, if required In more and more systems, ... 2. Trends in the Industry The polar diagram shows several symbols at a time. That is, it shows the instantaneous value of the carrier at any point on the continuous line between and including symbol ... taking but does not explicitly show errors at the decision points. Constellation diagrams provide insight into varying power levels,the effects of filtering, and phenomena such as Inter-Symbol Interference. The...

Ngày tải lên: 26/01/2014, 04:20