This user’s manual describes SAMSUNG s S3C2440A 16/32-bit RISC microprocessor. SAMSUNG’s S3C2440A is designed to provide hand-held devices and general applications with low-power, and high-performance microcontroller solution in small die size. To reduce total system cost, the S3C2440A includes the following components.
标签： S3C2440A SAMSUNG microprocessor describes
上传时间： 2013-12-19
上传用户：nanxia
This user’s manual describes SAMSUNG s S3C2440A 16/32-bit RISC microprocessor. SAMSUNG’s S3C2440A is designed to provide hand-held devices and general applications with low-power, and high-performance microcontroller solution in small die size. To reduce total system cost, the S3C2440A includes the following components.
标签： S3C2440A SAMSUNG microprocessor describes
上传时间： 2013-12-25
上传用户：weixiao99
Cypress Semiconductor makes a variety of PLL-based clock generators. This application note provides a set of recommendations to optimize usage of Cypress clock devices in a system. The application note begins with recommended termination techniques for clock generators. Subsequently, power supply filtering and bypassing is discussed. Finally, the application note provides some recommendations on board layout.
标签： Semiconductor application generators PLL-based
上传时间： 2013-12-20
上传用户：水中浮云
The CD ROM driver is used with Classpnp.sys to provide access to CD ROMs and DVD ROMs. It supports Plug and Play, Power Management, and AutoRun (media change notification). It is 64-bit compliant.
标签： ROMs Classpnp supports provide
上传时间： 2014-01-19
上传用户：jyycc
This is the library for all storage drivers. It simplifies writing a storage driver by implementing 90 percent of the code required to support Plug and Play, Power Management, et cetera. This library is used by disk.sys, cdrom.sys and the tape class drivers. No INF file is needed to install this library. The library is 64-bit compliant.
标签： storage implementing simplifies drivers
上传时间： 2014-01-01
上传用户：txfyddz
通过MP（代表其中一个P口）的高4位来控制，AA`BB`-4，5，6，7脚。12细分，没行数组里面分4对，每对数第一个加到P口控制电流方向，第二个数控制通电时间。正转AA`-BB`-A`A-B`B,数组由1到12行的读取，反转B`B-A`A-BB`-AA`,数组由12到1行的读取。参数POWER表示电机启动还是不启动，DIRECT参数表示方向，SPEED表示速度等级，每项通电时间用数组中的植/SPEED。本程序没考虑要走多少步的情况，调用一次就走一步。
标签： 控制
上传时间： 2015-12-07
上传用户：hopy
This application report describes the use of Timer_A3 to decode RC5 and SIRC TV IR remote control signals. The decoder described in this report is interrupt-driven and operates a background function using specific features the Timer_A3. Only a small portion of the MSP430 CPU?s nonreal-time resources is used. Specific hardware bit-latching capabilities of the Timer_A3 module are used for real-time decoding of the IR data signal, independent and asynchronous to the CPU. CPU activity and power consumption are kept to an absolute minimum level. The Timer_A3 decoder implementation also allows other tasks to occur simultaneously if required. The solutions provided are written specifically for MSP430x11x(1) and MSP430x12x derivatives, but can be adapted to any other MSP430 incorporating Timer_A3. 電視遙控器設計基於MSP430
标签： application describes Timer_A control
上传时间： 2014-01-01
上传用户：qq21508895
模拟/混合信号：传感器连接是信号调理成功的关键 作者：Gene Heftman，特约编辑，《Electronic Design》
上传时间： 2015-12-20
上传用户：钓鳌牧马
This submission includes the presentation and model files that were used in delivering a webinar on 12-15-05 that covered the topic of modeling Hybrid Electric Vehicles. Hybrid electric vehicles (HEVs) have proven they can substantially improve fuel economy and reduce emissions. Because HEVs combine an electric drive with the internal combustion engine (ICE) in the powertrain, the vehicle?s kinetic energy can be captured during braking and transformed into electrical energy in the battery. The dual power source also means that the ICE can be reduced in size and can operate at its most efficient speeds.
标签： presentation submission delivering includes
上传时间： 2015-12-24
上传用户：zl5712176
We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation, phase-shift keying, and pulse amplitude modulation communications systems.We study the performance of a standard CFO estimate, which consists of first raising the received signal to the Mth power, where M is an integer depending on the type and size of the symbol constellation, and then applying the nonlinear least squares (NLLS) estimation approach. At low signal-to noise ratio (SNR), the NLLS method fails to provide an accurate CFO estimate because of the presence of outliers. In this letter, we derive an approximate closed-form expression for the outlier probability. This enables us to predict the mean-square error (MSE) on CFO estimation for all SNR values. For a given SNR, the new results also give insight into the minimum number of samples required in the CFO estimation procedure, in order to ensure that the MSE on estimation is not significantly affected by the outliers.
标签： frequency-offset estimation quadrature amplitude
上传时间： 2014-01-22
上传用户：牛布牛
