LPC240

L298N是ST公司生产的一种高电压、大电流电机驱动芯片。该芯片采用15脚封装。主要特点是：工作电压高，最高工作电压可达46V；输出电流大，瞬间峰值电流可达3A，持续工作电流为2A；额定功率25W。内含两个H桥的高电压大电流全桥式驱动器，可以用来驱动直流电动机和步进电动机、继电器线圈等感性负载；采用标准逻辑电平信号控制；具有两个使能控制端，在不受输入信号影响的情况下允许或禁止器件工作有一个逻辑电源输入端，使内部逻辑电路部分在低电压下工作；可以外接检测电阻，将变化量反馈给控制电路。使用L298N芯片驱动电机，该芯片可以驱动一台两相步进电机或四相步进电机，也可以驱动两台直流电机。-L298N is produced by ST a high-voltage, high current motor driver chip. The chip uses 15-pin package. Main features are: high voltage, the maximum working voltage up to 46V output current, instantaneous peak current up to 3A, continuous operating current of 2A rated power of 25W. Contains two H-bridge high-voltage high-current full-bridge driver can be used to drive DC motors and stepper motors, relay coils and other inductive load using standard logic level signal control has two enable control terminal, input signal without affecting the case to permit or prohibit the device work a logic supply input, so that part of the internal logic circuits at low voltage work can be an external sense res

HT6221,PT2221红外编码遥控器处理模块VER1.0 作　者: David Wang Email: wy94081@sina.com.cn-HT6221, the PT2221 infrared remote control code processing module VER1.0 Author : David Wang Email : wy94081@sina.com.cn

经过测试可用的AVR的 AD7710送个开发人员，这个代码是我下载在MEGA上已经测试过的，晶振采用10M，AD为外部时钟，利用串口来读取数据，对于开发人员是个很不错的资料，大家可以下载看看

西门子SLE4442加密卡程序,已通过验证-Siemens SLE4442 encryption card program, has passed the validation

通过键盘设定温度和加热时间。 （2）使用DS18B20采集温度，采用七段数码管显示当前温度和剩余时间，并和设置的温度进行比较。 （3）当温度低于设定值时，通过DAC0832输出电压供给发热电阻RT1,使其温度升高。 -Through the keyboard setting temperature and heating time. (2) The use of DS18B20 collecting temperature, using seven-segment digital tube displays the current temperature and the remaining time, and and set the temperature for comparison. (3) When the temperature is below the set value, the DAC0832 output voltage of the supply of heat through the resistor RT1, so that temperature.

这是一个对电机进行SVPWM调速控制的VHDL源代码程序,包括了rtl主程序和测试sim仿真程序

LPC2478-STK IAR Sample Program

基于arduino的温度采集，通过18b20进行温度采集，然后将其上传到指定ip的服务器上。nokia5110用于显示相应的参数，温度信息。arduino可以进行ip的自动获取，还可以将数据通过串口用电脑进行观察相关参数。

此工具是arm-linux-GCC交叉编译工具（cross-3.4.4），这个是我自己编译的，下载后解压到/usr/local/arm目录下，如果你有其它版本的编译器，你最好在编译其它文件时指定这个目录，我试过，我用它编译了u-boot1.2.0没有问题，这个交叉编译器编了好长时间，我之前在网上搜了好长时间，但是没搜到，所以今天贡献出来，免得大家还得费时间去编译，我现在用是没有问题，如果有问题请多指教。希望热爱linux的同志们多贡献点好东西出来！-This tool is arm-linux-GCC cross compiler tools (cross-3.4.4), this is a translation of my own, after downloading unzip to/usr/local/arm directory, if you have other versions of the compiler, you the best in the other documents specified when compiling this directory, I tried, I use it to compile the u-boot1.2.0 no problem, the cross compiler made a good long time before I found online a long time, but did not found that the contribution to come out today, so everyone will have time to compile, I now use is no problem, please advise if there are problems. Hope love linux comrades contribution to point out good things!

51系列的软件包,有i2c驱动,各种芯片的介绍-51 series of software packages, there i2c driver, introduced a variety of chips