AT89S51的并行口P1接4×4矩阵键盘，以P1.0－P1.3作输入线，以P1.4－P1.7作输出线；在数码管上显示每个按键的“0－F”序号。
上传时间： 2017-06-30
上传用户：风之骄子
I2C driver for PIC, PICC compiler - bitbanged. Needs pull-up resistor on SCK and SDA and ports set for open collector
标签： bitbanged and compiler resistor
上传时间： 2017-07-01
上传用户：yzhl1988
High volume USB 2.0 devices will be designed using ASIC technology with embedded USB 2.0 support. For full-speed USB devices the operating frequency was low enough to allow data recovery to be handled in a vendors VHDL code, with the ASIC vendor providing only a simple level translator to meet the USB signaling requirements. Today s gate arrays operate comfortably between 30 and 60 MHz. With USB 2.0 signaling running at hundreds of MHz, the existing design methodology must change.
标签： technology 2.0 USB designed
上传时间： 2014-01-02
上传用户：二驱蚊器
High volume USB 2.0 devices will be designed using ASIC technology with embedded USB 2.0 support. For full-speed USB devices the operating frequency was low enough to allow data recovery to be handled in a vendors VHDL code, with the ASIC vendor providing only a simple level translator to meet the USB signaling requirements. Today s gate arrays operate comfortably between 30 and 60 MHz. With USB 2.0 signaling running at hundreds of MHz, the existing design methodology must change.
标签： technology 2.0 USB designed
上传时间： 2017-07-05
上传用户：zhoujunzhen
Besides enhanced looks and advanced features, one of the best things about Swing is its pluggable look and feel (PLAF). PLAF architecture allows seamless changes in the appearance of an application and the way an application interacts with the user. However, designing and developing a PLAF is much more exhaustive and complex. On the other hand, themes provide a simple alternative to change look and feel of the swing application. Themes are easier to implement and they enhance the visual appeal of the application UI using the default Java look and feel. Theme mechanism allows a developer to easily specify the default colors, fonts and icons used by the look and feel (L&F). It allows developers to write their own themes giving them a choice to show their application GUI the way they want it, rather than depending on the defaults provided by the system.
标签： pluggable enhanced advanced features
上传时间： 2014-01-23
上传用户：253189838
This is a Document on how to implement DDS on SX Communication controllers by Rho Enterprises with Full Hardware Diagram and Software Program.
标签： Communication Enterprises controllers implement
上传时间： 2017-07-14
上传用户：jennyzai
利用随机数产生1000个0～100之间的考试分数，将其存入一个文本文件中，然后程序从这个文件中读取这1000个考试分数，统计其中各分数段（A[90,100]，B[80,90), C[70,80), D[60,70), F[0,60)）的人数 、所占百分比，平均分。
上传时间： 2014-01-19
上传用户：问题问题
解方程，具体见英文描述，给一个连续方程，解出f(x) = 0 在一定范围的解
标签： 方程
上传时间： 2017-07-23
上传用户：zhangyigenius
解方程，给出一个连续函数接f(x)=0的值，前提是给一个附近的值
标签： 方程
上传时间： 2014-07-05
上传用户：banyou
NEWTON-RAPHSON求解一个连续方程，f（X）=0，前提给一个初始值
标签： NEWTON-RAPHSON 方程
上传时间： 2014-01-03
上传用户：thuyenvinh
