用TMS320F206的ASP实现1-Wire总线温度传感器接口

Realization of Interface of 1-Wire Bus Temperature-Transducer Using TMS320F206’s ASP

1 Wire总线是低速总线 ,存在长时间的延时。为了提高DSP使用效率 ,利用TMS32 0F2 0 6的片内ASP(异步串行口 ) ,采用UART(通用异步收发 )方式 ,模拟 1 Wire总线时序 ,实现与1 Wire总线数字温度传感器DS18B2 0的通信。提供了方便。

Wire bus is a kind of low speed bus which has long time delay. To increase the efficiency ,TMS320F206's on chip ASP(Asynchronous Serial Port) is used to simulate the timing of 1 wire bus and realize the communication between DSP and 1 wire bus temperature transducer by working at UART(Universal Asynchronous Receive and Transmit) mode. Thus an economical and efficient interface between low speed bus and high speed processor is obtained.