生物计量电子员工考勤登记密码保护

EBD7312 DAC SDT 测试程序及驱动程序-EBD7312 DAC SDT testing procedures and Driver

基于GD32f107的以太网协议栈lwip移植模板,包含了利用lwip RAW API实现的TCP、UDP通讯例程

应用背景串口访问防雷模块测试仪、放电管测试仪，存储防雷模块测试仪、放电管测试仪的测试信息，自动保存到数据库，经典的访问串口方法，比有些人的轮询要稳定可靠n倍；支持测试数据的查询打印报表关键技术核心技术：1、通过串口与防雷模块测试仪、放电管测试仪进行通信，基于事件的通信方式，比有些人的轮询要稳定可靠n倍。2、数据库采用ado方式通信。3、报表采用网页模式，更简单。

基于1-W器件的软件保护技术的研究，为了有效保护软件作者的知识产权，可以根据用户所用机器的硬件信息产生注册码，并在软件中对某些先进或常用功能进行限制，如果用户要使用其全部功能，必须将软件采集的有关硬件信息反馈给开发者，并交一定的注册费可获得该软件在自己机器中的注册码，才能正常使用。-Research of Software Protection Technology Based on 1-W Device

该程序为UClinux下面的USB接口通讯程序,采用C语言编写,包含了makefile文件,使用的开发环境为华恒公司的嵌入式开发套件-UClinux the procedures for the following communication procedures USB interface using C language, the document contains a makefile that the use of the development environment for embedded huaheng company Boards

TMS320VC5509 EVM技术资料-EVM technical information TMS320VC5509

由 Xilinx 提供的 IIC 接口，使用 AXI interface。 Features ‧ AXI interface is based on the AXI4-Lite interface ‧ Master or slave operation ‧ Multi-master operation ‧ Software selectable acknowledge bit ‧ Arbitration lost interrupt with automatic mode switching from master to slave ‧ Calling address identification interrupt with automatic mode switching from master to slave ‧ START and STOP signal generation and detection ‧ Repeated START signal generation ‧ Acknowledge bit generation and detection ‧ Bus busy detec ‧ Fast mode 400 KHz operation or standard mode 100 KHz ‧ 7-bit or 10-bit addressing ‧ General call enable or disable ‧ Transmit and receive FIFOs - 16 bytes deep ‧ Throttling ‧ General purpose output, 1 bit to 8 bits wide ‧ Dynamic Start and Stop generation ‧ Filtering on the SCL and SDA signals to eliminate spurious pulses

单片机与PC机串行通信实现,让刚学习51单片机的朋友学会如何写uart发送和接收的程序-PC-MCU and serial communication to achieve, so just to learn 51 MCU s friends to learn how to write programs to send and receive uart

under the keil c 51 enviorenment creat sina wave

在裸板armsys2410上点亮一盏灯,为初学者提供一个简单便捷的开始-Armsys2410 on the bare boards lit a lamp to provide a simple and convenient for beginners start