The ability to write efficient, high-speed arithmetic routines ultimately depends upon your knowledge of the elements of arithmetic as they exist on a computer. That conclusion and this book are the result of a long and frustrating search for information on writing arithmetic routines for real-time embedded systems. With instruction cycle times coming down and clock rates going up, it would seem that speed is not a problem in writing fast routines. In addition, math coprocessors are becoming more popular and less expensive than ever before and are readily available. These factors make arithmetic easier and faster to use and implement. However, for many of you the systems that you are working on do not include the latest chips or the faster processors. Some of the most widely used microcontrollers used today are not Digital Signal Processors (DSP), but simple eight-bit controllers such as the Intel 8051 or 8048 microprocessors.
標簽： arithmetic high-speed ultimately efficient
上傳時間： 2014-11-30
上傳用戶：lizhen9880
This leon3 design is tailored to the Altera NiosII Startix2 Development board, with 16-bit DDR SDRAM and 2 Mbyte of SSRAM. As of this time, the DDR interface only works up to 120 MHz. At 130, DDR data can be read but not written. NOTE: the test bench cannot be simulated with DDR enabled because the Altera pads do not have the correct delay models. * How to program the flash prom with a FPGA programming file 1. Create a hex file of the programming file with Quartus. 2. Convert it to srecord and adjust the load address: objcopy --adjust-vma=0x800000 output_file.hexout -O srec fpga.srec 3. Program the flash memory using grmon: flash erase 0x800000 0xb00000 flash load fpga.srec
標簽： Development Startix2 tailored Altera
上傳時間： 2014-01-19
上傳用戶：chongcongying
Spartan 3 Digilent Demo:This demo drives the perphrials on the Spartan 3 board. This drives a simple pattern to the VGA port, connects the switches to the LEDs, buttons to each anode of the seven segment decoder. The seven segment decoder has a simple counter running on it, and when SW0 is in the up position the seven segment decoder will display scan codes from the PS2 port. This demo how ever does not drive the RS-232 port or the memory. This is a simple design done entirely VHDL not microblaze.
標簽： Spartan drives This perphrials
上傳時間： 2014-05-29
上傳用戶：SimonQQ
This a simple bootloader for AT91SAM7{S,X}{64,128,256} processors. It permits you to download new code to the device over USB. This bootrom is installed at address 0x00000000 in the ARM, which means that it is the first piece of code to execute after reset. At startup, it waits for a few seconds to see if the downloader is trying to connect. If not, then the bootloader gives up control and jumps to your program. If the downloader is trying to connect, then the bootloader receives the new program over USB and writes it into flash.
標簽： bootloader processors download permits
上傳時間： 2015-11-30
上傳用戶：shus521
IO 驅動 LCD , *** *** *** *** *** *** *** *** FILE NAME: IO_LCD MCU: HT46R22 MASK OPTION: WAKE-UP: PA6,PA7 PULL-HIGH: PA,PB,PC IIC: DISABLE PFD: DISABLE PWM: DISABLE WDT: ENABLE CLRWDT: ONE WDT CLOCK SOURCE: T1 WDT TIME OUT SELECT: WDT CLOCK SOURCE/32768 LVR: DISABLE OSC: CRYSTAL SYSVOLT: 3.0V SYSFRAG: 4000KHZ AUTHOR: RADOME HISTORY: 2005.08.
上傳時間： 2014-12-21
上傳用戶：watch100
后PC時代是嵌入式和網絡化的時代，包括掌上電腦在內的PDA產品是后PC時代最重要的產品之一。在PDA市場激烈競爭的今天，Palm這個PDA界的龍頭老大，將被國內越來越多的人所接受，有關Palm OS 的研究、開發和應用工作也將隨之推廣。Palm OS programming from the ground up作為一本Palm開發的入門書籍較為全面的向讀者介紹了使用Code Warrior開發工具開發一個完整Palm OS應用程序的全過程。 本書面向各個層次的C程序員讀者和PDA愛好者。對于初學者來說，這是一本很好的入門教程，對于有經驗的程序員來說，這是專業的參考書，對于PDA愛好者來說，這又是一本方便的手冊。通過本書的學習，不僅可以快速學會開發基本的Palm OS應用程序，還可以學到調試程序、使用數據庫，優化用戶界面等高級PDA開發技術。 需要說明的是由于書中出現的一些新的專業詞匯，國內尚無統一標準譯法，只好按實際含義譯出。由于譯者水平有限，錯誤和不妥之處敬請廣大讀者指正。 本書由傅曦、張昌利和瞿芹翻譯，書中所有例子在Palm IIIc 和 POSE 模擬器上調試通過。如有疑問可聯系：fxqq@sina.com 衷心期望通過本書的學習你能成為Palm OS高級開發人員中的一員。
上傳時間： 2013-12-21
上傳用戶：zhanditian
This package consists of the executable (UCW), a default script file, this file, and the library files. It is important that the header files end up in a include subdirectory of the directory where UCW is found. If you unzip this file using its path information ( use folder names ) this will automatically happen. You can optionally specify the UnderC directory with the environment variable UC_HOME note that this points to the directory containing ucw.exe. If you do this, then you can copy the executable anywhere and it will still be able to find the header files.
標簽： file executable the consists
上傳時間： 2013-12-17
上傳用戶：asddsd
Welcome to UnderC version 1.2.9w This package consists of the executable (UCW), a default script file, this file, and the library files. It is important that the header files end up in a include subdirectory of the directory where UCW is found. If you unzip this file using its path information ( use folder names ) this will automatically happen. You can optionally specify the UnderC directory with the environment variable UC_HOME note that this points to the directory containing ucw.exe. If you do this, then you can copy the executable anywhere and it will still be able to find the header files.
標簽： executable consists Welcome package
上傳時間： 2015-12-18
上傳用戶：baiom
vs.net技術內幕 The release of the Microsoft Visual Studio .NET (and Visual C++ .NET in particular) has underscored Microsoft’s increasing focus on Internet technologies, which are at the heart of the Microsoft .NET architecture. In addition to supporting the .NET initiative, Visual C++ .NET keeps all the productivity-boosting features you’re familiar with, such as Edit And Continue, IntelliSense, AutoComplete, and code tips. Visual C++ .NET also includes many new features such as managed code extensions for .NET programming, support for attributed code, and a more consistent development environment. These features take Visual C++ .NET to a new level. This book will get you up to speed on the latest technologies introduced into Visual C++.
標簽： Visual particular Microsoft NET
上傳時間： 2015-12-26
上傳用戶：qweqweqwe
VDSP++打開。This directory contains an example ADSP-BF537 RTC project that does a basic blink routine and then puts the part in deep sleep mode to be woken up from a RTC Stopwatch Event. Once woken up, the RTC is reconfigured to toggle the EZ KIT LEDs using RTC second, minute, hour, and day interrupts.
標簽： directory contains ADSP-BF example
上傳時間： 2015-12-29
上傳用戶：330402686
