用VB实现S7-300PLC与PC机的普通串口通信.rar jiankong-Using VB realize S7-300PLC and PC-ordinary serial communication. Rar jiankong

A simple preoteus based design to display the characters typed int the keyboard into LCD using UART of 8051.Plz make sure that TTL to RS232 is inserted in between the microcontroller and virtual terminal which is not shown in the design.

The widespread use of embedded systems mandates the development of industrial software design methods, i.e. computer-aided design and engineering of embedded applications using formal models (frameworks) and standardized prefabricated components, much in the same way as in other mature areas of engineering such as mechanical engineering and electronics. These guidelines have been used to develop Component-based Design of Software for Embedded Systems (COMDES). The paper gives an overview of the COMDES framework, followed by a presentation of a generic component types, such as function blocks, activities and function units. The execution of function units is discussed in the context of a newly developed execution model, i.e. timed-multitasking, which has been extended to distributed embedded systems.

代码是基于51单片机用C语言开发的无线协议栈EZmac，可实现P2P简单首发。包括调频，LBT，LBD等

适合于atmel 9200的uboot程序-suited to the atmel 9200 uboot procedures

资源描述STM32F103CAN，通过拨码开关自动选择CAN波特率，将模数转换器ADC的值通过CAN总线发出

东芯IV的SEP3203ARM的源代码，包括MP3，USB,NORFLASH等。其程序均通过编译，运行OK!-East SEP3203ARM Core IV of the source code, including MP3, USB, NORFLASH such. Its procedures are adopted by the compiler, run OK!

CPT8000 防错料管理程序！对初学者帮助较大，功能较全!-CPT8000 material management procedures Poka! For beginners to help larger than the full-function!

此代码基于NXP公司的LPC2138ARM7源代码，能够驱动超声波发射与接收器，测距精度小于1厘米，代码注释详细，学习参考价值大，欢迎来下载使用！

基于89S52的和菲利普收音模块5767的收音机程序。内含自动搜索，但是需要进一步的完善，可以学习和了解I2C的通讯方式。-89S52-based radio module and Philip 5767 radio program. Includes automatic search, but it needs further improvement can learn and understand the I2C communications.