摘 要 无操作系统支持的嵌入式系统软件,包括系统引导(BOOT) 、驱动程序、动态内存管理、IPO、通信以及应用软件等方面。 本文详细介绍了嵌入式平台上用C 语言编写系统软件和应用软件的方法。虽然是针对ARM平台介绍的,但基本经验和算法也适 合于其他嵌入式平台的软件设计。
上传时间： 2013-06-12
上传用户：nanshan
This application note is intended for system designers who require a hardware implementation overview of the development board features such as the power supply, the clock management, the reset control, the boot mode settings and the debug management. It shows how to use the High-density and Medium-density STM32F10xxx product families and describes the minimum hardware resources required to develop an STM32F10xxx application.
上传时间： 2013-04-24
上传用户：epson850
英文描述： BCD-to-Seven-Segment Decoder Driver(Internal Pull-up outputs) 中文描述： BCD码到七段解码器驱动程序（内部上拉输出）
上传时间： 2013-07-13
上传用户：cc1015285075
英文描述： Synchronous Up/Down Decade Counters(single clock line) 中文描述： 同步向上/向下十年计数器（单时钟线）
上传时间： 2013-06-18
上传用户：haohaoxuexi
LPC178* 177*用户手册 LPC178x/7x 32-bit ARM Cortex-M3 microcontroller; up to 512 kB flash and 96 kB SRAM; USB Device/Host/OTG; Ethernet; LCD; EMC Rev. 3 — 27 December 2011 Objective data sheet
上传时间： 2013-04-24
上传用户：胡佳明胡佳明
boot loader for stm32 offical demo code
标签： flash_loader stm 32
上传时间： 2013-07-09
上传用户：mingaili888
Methods for designing a maintenance simulation training system for certain kind of radio are introduced. Fault modeling method is used to establish the fault database. The system sets up some typical failures， follow the prompts trainers can locate the fault source and confirm the type to accomplish corresponding fault maintenance training. A training evaluation means is given to examining and evaluating the training performance. The system intuitively and vividly shows the fault maintenance process， it can not only be used in teaching， but also in daily maintenance training to efficiently improve the maintenance operation level. Graphical programming language LabVIEW is used to develop the system platform.
上传时间： 2013-11-19
上传用户：3294322651
Industrial systems demand semiconductors that are precise, flexibleand reliable. Linear Technology offers a broad line of high performanceanalog ICs that simplify system design with rugged devices featuringparameters fully guaranteed over the -40°C to 85°C temperature range.We back this up with knowledgeable applications support, long productlife cycles and superior on-time delivery.
上传时间： 2013-11-02
上传用户：xiaodu1124
The MAX17600–MAX17605 devices are high-speedMOSFET drivers capable of sinking /sourcing 4A peakcurrents. The devices have various inverting and noninvertingpart options that provide greater flexibility incontrolling the MOSFET. The devices have internal logiccircuitry that prevents shoot-through during output-statchanges. The logic inputs are protected against voltagespikes up to +14V, regardless of VDD voltage. Propagationdelay time is minimized and matched between the dualchannels. The devices have very fast switching time,combined with short propagation delays (12ns typ),making them ideal for high-frequency circuits. Thedevices operate from a +4V to +14V single powersupply and typically consume 1mA of supply current.The MAX17600/MAX17601 have standard TTLinput logic levels, while the MAX17603 /MAX17604/MAX17605 have CMOS-like high-noise margin (HNM)input logic levels. The MAX17600/MAX17603 are dualinverting input drivers, the MAX17601/MAX17604 aredual noninverting input drivers, and the MAX17602 /MAX17605 devices have one noninverting and oneinverting input. These devices are provided with enablepins (ENA, ENB) for better control of driver operation.
上传时间： 2013-12-20
上传用户：zhangxin
Abstract: This application note presents an overview of the operational characteristics of accurate I²C real-time clocks (RTCs),including the DS3231, DS3231M, and DS3232. It focuses on general application guidelines that facilitate use of device resources forpower management, I²C communication circuit configurations, and I²C characteristics relative to device power-up sequences andinitializations. Additional discussions on decoupling are provided to support developing strategies for mitigating power-supply pushingof device frequency.
上传时间： 2013-11-23
上传用户：WMC_geophy
