Free open-source disk encryption software for Windows Vista/XP, Mac OS X, and Linux Main Features: * Creates a virtual encrypted disk within a file and mounts it as a real disk. * Encrypts an entire partition or storage device such as USB flash drive or hard drive. * Encrypts a partition or drive where Windows is installed (pre-boot authentication). * Encryption is automatic, real-time (on-the-fly) and transparent. * Provides two levels of plausible deniability, in case an adversary forces you to reveal the password: 1) Hidden volume (steganography) and hidden operating system. 2) No TrueCrypt volume can be identified (volumes cannot be distinguished from random data). * Encryption algorithms: AES-256, Serpent, and Twofish. Mode of operation: XTS. Further information regarding features of the software may be found in the:http://www.truecrypt.org/
标签： open-source encryption Features software
上传时间： 2013-12-20
上传用户：123啊
摘要：介绍了以FreeModbus协议找在嵌入式抢占实时操作系统μC/OS-l的STM32平台上，成功实现了Modbus协议的移植。通过详细分析FreeModbus协议花并编写STM32F103VET6微处理器的底层驱动，成功实现了工业Modbus协议RTU和ASCll两种模式的通信功能。测试结果表明，在实际工业生产控制和仪表开发中，应用Freemodbus协议，完全符合工业数据采集、实时控制和数据处理等厂级重复性和精确度要求，在一定程度上降低了工业仪表开发的周期及成本。关键词：实时操作系统，uC/OS-ll，FreeModbus，Modbus协议，STM32Abstract:This paper introduces FreeModbus stack transplanted to the STM32 platform which has been embedded in the preemptive real-time operating system uC/OS-ll，in order that the transplantation of the Modbus protocol is successfuly im-plemented.The FreeModbus stack is analyzed in detail and STM32F103VET6 microprocessor underlying driver is writed，so that the two Modbus industrial communication function RTU and ASCll are successfully realized.Keywords:time operating system，uC/OS-ll，.FreeModbus，Modbus协议，STM32
标签： freemodbus 通信协议
上传时间： 2022-06-25
上传用户：
VIP专区-嵌入式/单片机编程源码精选合集系列（38）资源包含以下内容：1. 看看名字就应该知道是干什么用的了吧！ 这可是个好东东！我搜索了很久才找到的！ 独乐乐.2. 51单片机c语言中断的实现 还有很多例子可以参考。包括常用的中断模块 c语言单片机开发很有用.3. 这是利用C51语言编写的读写AT24C512的程序.4. 这是利用CYPRESS CY7C63723汇编语言编写的读写AT24C512的程序.5. 这个是我参考过的多级菜单.6. 可以用H.264编码解码器源码(c语言).7. Application of Bootstrap Loader in MSP430 With Flash Hardware and Software Proposal.8. Features of the MSP430 Bootstrap Loader.9. Implementing a Real-Time Clock on the MSP430.10. Experiments for the MSP430 Starter Kit.11. Solid State Voice Recorder Using Flash MSP430.12. Application of Bootstrap Loader in MSP430 With Flash Hardware and Software Proposal.13. Interfacing the DAC8574 to the MSP430F449.14. Interfacing the MSP430 and TMP100 Temperature Sensor.15. Ultrasonic Distance Measurement With the MSP430.16. Implementing a Direct Thermocouple Interface With the MSP430x4xx and ADS1240.17. 24点汉字的C++实现代码.18. TC与BC++用户界面程序设计 《Turbo CBorland C++用户界面程序设计》（西安交通大学出版社 周升锋 李立新 等著）的随书软盘.19. 用VB通过并口控制I2C总线.20. pcb封装详解.21. uClinux 下MicroWindows开发的电机控制平台软件和模拟示波器的双路数据采集系统源码.22. 51单片机PID计算程序.23. 详细的介绍,以及其中库函数的描述说明,用法等.24. 日本人设计的电子热水瓶的全部嵌入式源码,很好的实例.25. 一个极好的192*64LCD的C源代码！.26. 51单片机.27. 自启动vxworks---一个自启动vx程序的开发文档 vx编程指南----vx的一些基本编程介绍和操作手册 tornado ---- tornado使用手册 linux内核分析 ----- l.28. EasyARM 程序 RTC_TEST.29. EasyARM 程序 uart_TEST.30. EasyARM 程序 SPI_TEST.31. EasyARM 程序 I2C_TEST.32. 一个resist的程序.33. 在nios环境下的LCD的包括测试.34. nios 环境下的软件编程.35. nios 的开发程序.36. 单片机与pc机.37. uIP0.9版本.38. lwip1.0.0协议栈tcpip.39. lwip在ucos上的移植.40. 网友张巍提供的tcpip协议栈,是一个成功稳定的以太网接口上的TCP/IP协议程序。里面包括有说明.
上传时间： 2013-04-15
上传用户：eeworm
VIP专区-嵌入式/单片机编程源码精选合集系列（105）资源包含以下内容：1. 凌阳公司机sunplus1002在这个芯片下.2. 基于pdiusbd12的c51单片机驱动程序.3. 凌阳公司机sunplus1002在这个芯片做为机顶盒主芯片下的嵌入式字体库。.4. 常见datasheet中文版--- 很多人不大习惯读英文的datasheet.5. 倒车雷达系统的研究与设计：系统设计中采用了模块设计思想.6. TMS320VC5509设备端USB设备驱动程序源文件.7. 利用51单片机控制步进电机并显示当前转速.8. 5920是PCI桥芯片,节省了许多用于处理PCI通讯细节的开发时间.这个是相关资料.9. XILINX专用术语,中文,很好的规范教材,可以方便新人能较快的入门.10. 嵌入式的一本好书.11. 该文件中包括89系列 X102开发板的12232液晶屏AD转换器ADC0809,DA转换器DAC0832,I2C总线芯片24C02,RAM电路62256,发光二极管电路.12. “霓虹灯”小程序.13. 三星公司S3C2410X中文数据手册完全版.14. 此程序下位机采集18部0温度.15. 运行环境:DOS, 通过串口升级的下位程序, 需配合上位升级程序FileUpgrade运行, 可用于嵌入式DOS系统中..16. 在电路中选择运算放大器(运放)来实现某一特定功能时.17. 嵌入式DOS系统上位升级程序FileUpgrade, 需配合本人上传的FileUpr程序应用, VC++开发, 非常实用, 内附说明及源码.18. 步进电机的控制程序.19. moden控制器电路设计.20. dsPICDEM_v1_1开发板的相关例程.21. 程序在visual c＋＋环境下实现了图像按照输入参数进行平移旋转和在水平垂直方向上的镜像功能。.22. Develop Zigbee network real-time Os.23. AT89C51+CPLD 的EPM7064SLC44-10的学习板电路图.24. LSVMK Langrangian Support Vector Machine algorithm LSVMK solves a support vector machine problem us.25. 网上寻找的.26. 介绍了关于怎样用DRAM 芯片用做 摄象机.27. s3c2410的背光源码.28. s3c2410的触摸屏源码.29. 嵌入式系统软件结构设计 基于uc/os- 2的软件设计.30. 嵌入式实时操作系统分析 uc/os-2操作系统内核的分析.31. 24C02的读与写.32. 学习开源gui库wxwidgets的入门源码.33. 2812的ad的详细说明.34. LED显示屏设计LED显 示屏设计 LED显示屏设计 LED显示屏设计 LED显示屏设计.35. mc68hc08 tim 试验程序实例.36. 附带图形界面的2410Flash烧写程序.37. OrCAD格式的2410开发板 底板原理图.38. OrCAD格式的S3C2410X核心板原理图.39. H_323协议详解（中文） 打开文件的密码是:21315038.40. stc单片机读内部eeprom代码.
标签： 激光测量
上传时间： 2013-04-15
上传用户：eeworm
The government of a small but important country has decided that the alphabet needs to be streamlined and reordered. Uppercase letters will be eliminated. They will issue a royal decree in the form of a String of B and A characters. The first character in the decree specifies whether a must come ( B )Before b in the new alphabet or ( A )After b . The second character determines the relative placement of b and c , etc. So, for example, "BAA" means that a must come Before b , b must come After c , and c must come After d . Any letters beyond these requirements are to be excluded, so if the decree specifies k comparisons then the new alphabet will contain the first k+1 lowercase letters of the current alphabet. Create a class Alphabet that contains the method choices that takes the decree as input and returns the number of possible new alphabets that conform to the decree. If more than 1,000,000,000 are possible, return -1. Definition
标签： government streamline important alphabet
上传时间： 2015-06-09
上传用户：weixiao99
* 高斯列主元素消去法求解矩阵方程AX=B,其中A是N*N的矩阵,B是N*M矩阵 * 输入: n----方阵A的行数 * a----矩阵A * m----矩阵B的列数 * b----矩阵B * 输出: det----矩阵A的行列式值 * a----A消元后的上三角矩阵 * b----矩阵方程的解X
上传时间： 2015-07-26
上传用户：xauthu
This book is a hands-on introduction to the principles and practice of embedded system design using the PIC microcontroller. Packed with helpful examples and illustrations, it gives an in-depth treatment of microcontroller design, programming in both assembly language and C, and features advanced topics such as networking and real-time operating systems. It is accompanied by a CD-ROM containing copies of all programs and software tools used in the text and a `student version of the C complier Designing Embedded Systems with PIC Microcontrollers: Principles and Applications is ideal for students of electronics, mechatronics and computer engineering. Engineers in industry and informed hobbyists will also find this book a valuable resource when designing and implementing both simple and sophisticated embedded systems using the PIC Microcontroller.
标签： introduction principles hands-on embedded
上传时间： 2014-01-17
上传用户：wuyuying
The ability to write efficient, high-speed arithmetic routines ultimately depends upon your knowledge of the elements of arithmetic as they exist on a computer. That conclusion and this book are the result of a long and frustrating search for information on writing arithmetic routines for real-time embedded systems. With instruction cycle times coming down and clock rates going up, it would seem that speed is not a problem in writing fast routines. In addition, math coprocessors are becoming more popular and less expensive than ever before and are readily available. These factors make arithmetic easier and faster to use and implement. However, for many of you the systems that you are working on do not include the latest chips or the faster processors. Some of the most widely used microcontrollers used today are not Digital Signal Processors (DSP), but simple eight-bit controllers such as the Intel 8051 or 8048 microprocessors.
标签： arithmetic high-speed ultimately efficient
上传时间： 2014-11-30
上传用户：lizhen9880
This application report describes the use of Timer_A3 to decode RC5 and SIRC TV IR remote control signals. The decoder described in this report is interrupt-driven and operates a background function using specific features the Timer_A3. Only a small portion of the MSP430 CPU?s nonreal-time resources is used. Specific hardware bit-latching capabilities of the Timer_A3 module are used for real-time decoding of the IR data signal, independent and asynchronous to the CPU. CPU activity and power consumption are kept to an absolute minimum level. The Timer_A3 decoder implementation also allows other tasks to occur simultaneously if required. The solutions provided are written specifically for MSP430x11x(1) and MSP430x12x derivatives, but can be adapted to any other MSP430 incorporating Timer_A3. 電視遙控器設計基於MSP430
标签： application describes Timer_A control
上传时间： 2014-01-01
上传用户：qq21508895
With this foundation, you explore a development model that addresses the complete range of issues in the design of embedded communications software, including real-time operating systems, hardware and software partitioning, layering, and protocol stacks.
标签： development foundation addresses complete
上传时间： 2016-01-16
上传用户：zyt
