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2009•Modern Electronics TechniqueRequires access

Design of Embedded Temperature Measurement System Based on 1-Wire Bus

Chai Bo

Open publisher page 1 citations

Abstract

The software and hardware design of 1-wire embedded temperatare measurement system based on DS18B20 are proposed.the interior structure,work protocol and using method of DS18B20 and DS2480B are introduced.The time sequence pictures and driving code of 1-wire operation,the circuit logic of system′s hardware are given.In the past applications,the temperatare measuremant mostly for the PC-chip through the serial port control DS18B20 and bridges DS2480B.In this paper,C8051F040 is applied to instead of the traditional PC,through on-chip UART chip to control the temperature in the special environment.Practice proves that the circuit system is working normal,the temperature acquisition is good.

About this research paper

What this paper is about

The software and hardware design of 1-wire embedded temperatare measurement system based on DS18B20 are proposed.the interior structure,work protocol and using method of DS18B20 and DS2480B are introduced.The time sequence pictures and driving code of 1-wire operation,the circuit logic of system′s hardware are given.In the past applications,the temperatare measuremant mostly for the PC-chip through the serial port control DS18B20 and bridges DS2480B.In this paper,C8051F040 is applied to instead of the traditional PC,through on-chip UART chip to control the temperature in the special environment.Practice proves that the circuit system is working normal,the temperature acquisition is good.

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Available abstract

The software and hardware design of 1-wire embedded temperatare measurement system based on DS18B20 are proposed.the interior structure,work protocol and using method of DS18B20 and DS2480B are introduced.The time sequence pictures and driving code of 1-wire operation,the circuit logic of system′s hardware are given.In the past applications,the temperatare measuremant mostly for the PC-chip through the serial port control DS18B20 and bridges DS2480B.In this paper,C8051F040 is applied to instead of the traditional PC,through on-chip UART chip to control the temperature in the special environment.Practice proves that the circuit system is working normal,the temperature acquisition is good.

Key concepts: Universal asynchronous receiver/transmitter, Serial port, Chip, Embedded system, Computer hardware, Port (circuit theory), Serial communication, Computer science

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