摘要
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.
出处
《电子工程师》
2004年第1期77-79,共3页
Electronic Engineer