基于MSP430F149的温度记录仪的低功耗设计

Low-power Design of Temperature Data-logger Based on MSP430F149

温度记录仪的应用十分广泛,经常需要进行长时间的工作,对于电池供电的记录仪来说,系统的低功耗设计是仪器成败的关键之一。围绕着低功耗的原则,以微处理器MSP430F149为核心,通过软、硬件的各种优化,设计出一款轻便、低功耗的温度记录仪,满足了长时间自动记录温度的要求。通过实际测量和理论计算,得到了MSP430F149在特定任务下令系统功耗最优的工作频率。

Temperature data-logger is widely used.It is always required to work for a long time.Therefore,as to the battery-powered data-logger,the system low-power design is one of the keys to a successful device.Designed a temperature data-logger based on MSP430F149 by optimizing the software and hardware,focus on the principle of low-power.The device was portable and low-power,meeting the requirement to record temperature data in a long time automatically.Via measurement and theoretical calculation,the working frequency of MSP430F149 which optimized the power of the system in a particular task was provided.