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单片机编程 PCA9541 2 to 1 I2C-bus master
The PCA9541 is a 2-to-1 I2C-bus master selector designed for high reliability dual masterI2C-bus applications where system operation is required, even when one master fails orthe controller card is removed for maintenance. The two masters (for example, primaryand back-up) are located on separate I2C ...
单片机编程 Emulating a synchronous serial
The C500 microcontroller family usually provides only one on-chip synchronous serialchannel (SSC). If a second SSC is required, an emulation of the missing interface mayhelp to avoid an external hardware solution with additional electronic components.The solution presented in this paper and in the a ...
单片机编程 P90CL301 I2C driver routines
This application note shows how to write an Inter Integrated Circuit bus driver (I²C) for the Philips P90CL301micro-controller.It is not only an example of writing a driver, but it also includes a set of application interface software routines toquickly implement a complete I²C multi-maste ...
单片机编程 87LPC76X的IIC从程序
Presents short and simple I2C software routines that support onlyslave (rather than master or master & slave) operation and an ASMdemonstration program. The slave-only software in this app notecomplements the master mode software presented in AN464, Usingthe 87LPC76X microcontroller as an I2C bus ma ...
单片机编程 Using the 87LPC76X microcontro
I2C interface, is a very powerful tool for system designers. Theintegrated protocols allow systems to be completely software defined.Software development time of different products can be reduced byassembling a library of reusable software modules. In addition, themultimaster capability allows rapid ...
单片机编程 基于多点网络的水厂自动监控系统设计
基于多点网络的水厂自动监控系统设计Design of MPI Based Automatic Monitoring and Control System in Water Works刘 美 俊(湖南工程学院，湘潭411101)摘要针对水厂工作水泵多、现场离控制站距离远的特点，提出了一种基于MPI多点网络的自动监控系统的设计方法，分析了系统的工作原理，介绍了系统中数据的采集与处理、主站 ...
教程资料 Create a 1-Wire Master with Xilinx PicoBlaze
Abstract: Designers who must interface 1-Wire temperature sensors with Xilinx field-programmable gate arrays(FPGAs) can use this reference design to drive a DS28EA00 1-Wire slave device. The downloadable softwarementioned in this document can also be used as a starting point to connect other 1-Wir ...
嵌入式综合 1-Wire总线主机
Abstract: Communication with 1-Wire slave devices requires a 1-Wire master. There are numerous ways to build a 1-Wire master (see reference design 4206, "Choosing the Right 1-Wire Master for Embedded Applications"). Thisdocument describes the DS1WM, a synthesizable 1-Wire master that can be implem ...
无线通信 zigbee技术及应用下载
ZigBee技术是一种应用于短距离范围内，低传输数据速率下的各种电子设备之间的无线通信技术。ZigBee名字来源于蜂群使用的赖以生存和发展的通信方式，蜜蜂通过跳ZigZag形状的舞蹈来通知发现的新食物源的位置、距离和方向等信息，以此作为新一代无线通讯技术的名称。ZigBee过去又称为“HomeRF Lite”、“RF-EasyLink”或“Fire ...
可编程逻辑 Xilinx FPGA集成电路的动态老化试验
3 FPGA设计流程
完整的FPGA 设计流程包括逻辑电路设计输入、功能仿真、综合及时序分析、实现、加载配置、调试。FPGA 配置就是将特定的应用程序设计按FPGA设计流程转化为数据位流加载到FPGA 的内部存储器中，实现特定逻辑功能的过程。由于FPGA 电路的内部存储器都是基于RAM 工艺的，所以当FPGA电路电源掉电后， ...