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Reading and Writing iButtons v

  • 資源大小:706 K
  • 上傳時(shí)間: 2013-10-29
  • 上傳用戶:yy5562761
  • 資源積分:2 下載積分
  • 標(biāo)      簽: iButtons Reading Writing and

資 源 簡(jiǎn) 介

Abstract: This application note explains the hardware of different types of 1-Wire® interfaces and software examples adapted to this hardware with a focus on serial ports. Depending on the types of iButtons required for a project and the type of computer to be used, the most economical interface is easily found. The hardware examples shown are basically two different types: 5V general interface and 12V RS-232 interface. Within the 5V group a common printed circuit board could be used for all circuits described. The variations can be achieved by different populations of components. The same principal is used for the 12V RS-232 interface. The population determines if it is a Read all or a Read/Write all type of interface.

There are other possible circuit implementations to create a 1-Wire interface. The circuits described in this application note cover many different configurations. For a custom application, one of the described options can be adapted to meet individual needs.

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