基于MSPF449的三相电压表功率的开发程序

用lpc2114，控制max531芯片的源码。开发环境为ads1.2，io接法在宏定义里。-With lpc2114, control max531 chip source. Development environment for ads1.2, io connection the macro definition.

PCI总线仲裁参考设计Verilog代码-PCI bus arbitration reference design Verilog code

应用背景逆变器采用正弦PWM生成dsPIC30F6014A关键技术纯正弦波20kHz调制给LC滤波的完美的波浪

drive controller for glcd ks0108 is write in c

uclinux上的frame buffer driver for s3c44b0x LCD(16级灰度），如果想要256色彩屏的也可以找我要-Basis of frame buffer driver for s3c44b0x LCD (Gray 16), if you want the 256 color screen can also find I

在线编辑WORD文档，及打开服务器上的WORD文档，编辑完成后保存到服务器上-online editing Word documents, and opened on a server Word documents, editing is complete preservation to the server

包含2份代码：1、阻塞式的2、采用select可以处理多用户

在lpc1758上面进行lwip的不加系统的移植，实现tcp和uart的相互传输，可以从pc的网络终端写入数据传输到uart 然后在pc的串口终端显示，也可以从pc的串口终端写入数据，然后在pc的网络终端显示

SPI接口实验LED显示 -SPI Interface SPI Interface experimental experimental LED display LED display

提供的程序是供四相步进电机使用。本实验使用的步进电机用直流+12V电压，电机线圈由A、B、C、D四相组成。 2. 驱动方式为四相单四拍方式,各线圈通电顺序如下表。表中首先向A相线圈输入驱动电流，接着向B，C，D线圈通电，最后又返回到A相线圈驱动，按这种顺序轮流切换，电机轴按顺时针方向旋转。若通电顺序相反，则电机轴按逆时针方向旋转。-provide for the procedures of the four-phase stepper motor use. This experiment used the stepper motor 12V DC voltage electrical coils A, B, C, D phase. 2. Four-driven approach to making four single-phase, the coil electrifying sequence the following table. Table A first phase coil input drive current, then to B, C, D coil electricity and eventually return to the A-phase coil driven by the rotation order of this switch, the electrical axis by rotating clockwise direction. If electricity in reverse order, the motor shaft by the anti-clockwise rotation.