十六进制负数转十进制

本次设计的数控直流电阻箱主要由恒定电流源部分、显示部分、键盘部分、电源部分组成。以STM32单片机为核心控制恒流源，恒流源电路由达林顿三极管、高精度运算放大器、采样电阻等组成。通过键盘输入给定值，经D/A转换器将数字信号转换为模拟信号，控制电流。采用电流反馈电路控制精度，经多次调试改进，实现了直流电阻箱的功能。本次设计的数控直流电阻箱较以往的电阻箱相比，其优点在于可操作性强、精度高、体积小、高效节能等优点。适用于作为直流负载的应用场合。(The numerical control DC resistance box designed mainly consists of constant current source part, display part, keyboard part and power supply part. The constant current source is controlled by STM32 single chip microcomputer. The constant current source circuit is composed of Darlington transistor, high precision operational amplifier and sampling resistor. Through the keyboard input a given value, the D/A converter converts the digital signal into analog signal to control the current. The control precision of the current feedback circuit is improved, and the function of the DC resistance box is realized through many debugging improvements. Compared with the conventional resistance box, the designed DC resistance box has the advantages of strong operability, high accuracy, small size, high efficiency and energy saving. It is suitable for application as DC load.)

实现路由穿越，点对点通信，可以传递文字和ip地址，适合于有一定基础的人进行更深层次的c++学习，也可进行篇p2p原理的模拟和深入理解。

嵌入式实时操作系统FreeRTOSV8.2.3源代码

二维码生成，C++，可以直接编译运行。vc6.0和VS2010直接可以编译运行。可以自由设置二维码生成的相关的设置

STM32F103VET6用LCD画坐标轴(Drawing coordinate axes with LCD in STM32F103VET6)

说明：  虚拟示波器历程 用于在线观察波形 智能车直立车专用(The course of virtual oscilloscope)

STM32 I2C 封装库1 – 查询方式 STM32 I2C 封装库2 – 中断方式 STM32 I2C 封装库3 – DMA方式 (STM32 I2C package library 1- ways to search for STM32 I2C package library 2- interrupt STM32 I2C package library 3- DMA mode)

量子计算在数据挖掘中的应用，与传统数据挖掘方法结合产生新的更有优势的算法。(Quantum computing in the application of data mining, and the traditional data mining methods to produce the new algorithm has more advantages.)

msp430f149按键程序，非常完整，带中断，输入，输出(msp430f149 key procedures)

使用C#编写的简单抽取人员名单，可以用来抽取获奖名单(List of extracting personnel)