urifind the uri from specially text samples or files. nice.
标签： specially urifind samples files
上传时间： 2013-12-19
上传用户：sammi
kXML is a small XML pull parser, specially designed for constrained environments such as Applets, Personal Java or MIDP devices.
标签： environments constrained specially designed
上传时间： 2016-08-30
上传用户：黑漆漆
This program specially made for zip & unzip ...check it out &
标签： amp specially program check
上传时间： 2014-01-12
上传用户：cylnpy
针对目前使用的RS232接口数字化B超键盘存在PC主机启动时不能设置BIOS，提出一种PS2键盘的设计方法。基于W78E052D单片机，采用8通道串行A/D转换器设计了8个TGC电位器信息采集电路，电位器位置信息以键盘扫描码序列形式发送，正交编码器信号通过XC9536XL转换为单片机可接收的中断信号，软件接收到中断信息后等效处理成按键。结果表明，在满足开机可设置BIOS同时，又可实现超声特有功能，不需要专门设计驱动程序，接口简单，成本低。 Abstract: Aiming at the problem of the digital ultrasonic diagnostic imaging system keyboard with RS232 interface currently used couldn?蒺t set the BIOS when the PC boot， this paper proposed a design method of PS2 keyboards. Based on W78E052D microcontroller，designed eight TGC potentiometers information acquisition circuit with 8-channel serial A/D converter， potentiometer position information sent out with keyboard scan code sequentially.The control circuit based on XC9536 CPLD is used for converting the mechanical actions of the encoders into the signals that can be identified by the MCU， software received interrupt information and equivalently treatmented as key. The results show that the BIOS can be set to meet the boot， ultrasound specific functionality can be achieved at the same time， it does not require specially designed driver，the interface is simple and low cost.
上传时间： 2013-10-09
上传用户：asdfasdfd
介绍几种cpuThe 8xC251SA/SB/SP/SQ improves on the MCS-51 architecture and peripheral features, introducing the advanced register based CPU architecture i.e., the MCS 251 microcontroller architecture. The register based CPU supports a 40-byte register file. In addition, the 8xC251SA/SB/SP/SQ microcontroller has 256-Kbyte expanded external code/data memory space and 64-Kbyte stack space. The new controller is also specially designed to execute C code efficiently. More importantly, the 8xC251SA/SB/SP/SQ maintains binary code compatibility with MCS 51 microcontrollers but at the same time allows the use of the powerful MCS 251 microcontroller instruction set, with many new 8, 16 and 32 bit instructions available. The 8xC251SA/SB/SP/SQ has 512 bytes or 1 Kbyte of on-chip data RAM options and is available in 16 Kbytes and 8 Kbytes of on-chip ROM/OTPROM or ROMless options.
标签： architecture introducin peripheral improves
上传时间： 2015-03-15
上传用户：ccclll
在半导体制冷技术的工作性能及其优缺点研究的基础上,设计了以单片机为核心控制元件,以TEC1-12706为执行元件的半导体制冷温度控制系统。采用高精度分段式PID控制算法配合PWM输出控制的方法实现温度控制;选择数字传感器DS18B20为温度检测元件,还包含1602液晶显示模块、按键调整输入模块和H桥驱动模块等。实际测试表明,该系统结构简单易行,操作方便,工作性能优良,同时针对该系统专门设计的温控算法,使半导体制冷器能更好地适应不同工况而充分发挥其制冷制热工作特性。Based on the study of the performance and advantages and disadvantages of thermoelectric cooler(TEC)technology,a thermoelectric cooling temperature control system with single-chip microcomputer as the core control element and TEC1-12706 as the executive element was designed. High precision piecewise PID control algorithm combined with PWM output control method is adopted to realize temperature control. The digital sensor DS18B20 is selected as the temperature detection element. It also includes 1602 LCD module,key adjustment input module and H bridge drive module. The actual test shows that the system has simple structure,convenient operation and excellent performance. Meanwhile,the temperature control algorithm specially designed for the system can make the semiconductor cooler better adapt to different working conditions and give full play to its refrigeration and heating characteristics.
上传时间： 2022-03-26
上传用户：pagedown
CH7525 is a low-cost, low-power semiconductor device that translates the DisplayPort signal to HDMI/DVI. This innovative DisplayPort receiver with an integrated HDMI Transmitter is specially designed to target the notebook/ultrabook, tablet device and PC market segments. Through the CH7525’s advanced decoding / encoding algorithm, the input DisplayPort high-speed serialized multimedia data can be seamlessly converted to HDMI/DVI output.
上传时间： 2022-06-02
上传用户：yb9018
