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reducing the overall cost of the system

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  • Started 12 years ago by qDFtkN6vFoM

  1. qDFtkN6vFoM
    Member

    <p> Linux-based embedded systems and hardware platforms relationship </p>
    <p> </p>
    <p> Third, the design of three-level </p>
    <p> designed with three different levels: </p>
    <p> 1. 1 Level 2: PCB CAD software and ICE as the main tool of the design methods. </P>
    <p> This is our past until now has been used microcontroller applications designers method, which is the first step after the abstract concrete. Abstract design is mainly based application system to achieve the functional requirements of the system functionality refinement, divided into several functional modules, functional block diagram of the system shown, then the functional module and software functions http://quickbookspayroll.tumblr.com/ of the distribution. </P>
    <p> specific design including design and software design. Design is mainly based on performance parameters required for each functional module components used for selection and combination of the basic principles of their choice on the market that you can buy the most cost-effective generic components. When necessary, shall be separately for each part not sure take test, functional testing and performance testing, from the module to the system to find the optimal solution relative to draw circuit schematics. The key step in hardware design is the use of printed circuit board (PCB) computer-aided design (CAD) software components of the system to place and route, followed by PCB fabrication, assembly and hardware debugging. The largest part of the workload of the software design. Software design throughout the system design process, including task analysis, resource allocation, module division, process design and refinement, coding and debugging. Software design effort focused on program debugging, so the software debugging tool is the key. The most common and most effective tool is Circuit Emulator (ICE). </P>
    <p> 2. 2 levels: with EDA tools and design methods for the development of EOS. </P>
    <p> With the development of microelectronics technology, a variety of general-purpose programmable semi-custom logic devices came into being. In the hardware design, the designer can use these semi-custom devices, and gradually the original PCB interconnect through a number of standard logic devices made from the ASIC (ASIC) to use, so put the PCB layout and wiring complexity into a semi-custom devices within the configuration complexity. However, semi-custom device design does not require designers to have a semiconductor integrated circuit technology and chip placement and routing of knowledge and experience. With semi-custom devices increasing scale, more and more devices can be integrated, so that the line interconnecting devices on the PCB, assembly and commissioning costs less and less, not only greatly reduces the PCB area and the number of connectors, reducing the overall cost of the system, increasing the flexibility of programmable applications, more importantly, reduce system power consumption and improve the operating speed of the system, greatly improving system reliability and security. </P>
    <p> Thus, hardware designers from the past selection and use of standard universal integrated circuit device design and production gradually shifted part of their dedicated integrated circuit devices, and these technologies are provided by a variety of EDA tools support. </P>
    <p> semi-custom logic devices experienced a programmable logic array PLA, programmable array logic trx PAL, Generic Array Logic GAL, complex programmable logic device CPLD and field programmable gate array (FPGA) development process. The trend is increasing integration and speed, functionality and constantly enhance the structure tends to be more rational, trx more flexible and convenient to use. </P>
    <p> designers can take advantage of a variety of EDA tools and standard CPLD and FPGA design and homemade user-specific LSI. Then through a bottom-up design approach, the use of semi-custom integrated circuit device design homemade, quickbooks online login programmable peripheral devices, the choice of ASIC and embedded microprocessor or microcontroller on the PCB layout, wiring constitute a system . </P>
    <p> 3. 3 layers: core libraries for the design of IP-based hardware and software co-design techniques using the design method. </P>
    <p> 20 after the 1990s, they began a continuing shift from the integrated circuit level design integrated system-level design. Has entered the system on chip SOC (System on a chip) design stage, and began to enter the practical stage. This design method is not necessary to use the system for all the secondary circuit simply integrated quickbooks for mac into a single chip, to achieve single-chip system, if so, is impossible to achieve a monolithic system requires high density, high speed, high performance, small size, low voltage, low power consumption and turbotax other indicators, especially low power requirements. Monolithic system design from the overall system performance requirements, the microprocessor model algorithm, chip structure, the external device until the device at all levels circuit design closely together, and through the establishment of a new concept of system software and hardware synergy designed on a single chip complete the system. Sometimes the system may also be made at several </p>
    <p> No. 1/61 </p>

    Posted 12 years ago #

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