可穿戴计算机I^2C扩展总线的研制  

RESEARCH ON I^2C BUS OF WEARABLE COMPUTERS

作　　者：张孔辉[1] 沈为民[2] 

机构地区：[1]哈尔滨师范大学 [2]哈尔滨工业大学

出　　处：《哈尔滨师范大学自然科学学报》2002年第2期36-40,共5页Natural Science Journal of Harbin Normal University

摘　　要：可穿戴计算机在实际生活中的应用非常广泛,既能够应用于军事又能在民用中得到使用.所以要在各种不同的场合进行工作,要适合各种不同的环境.具体应用中,不能满足各种应用的需要,所以要对可穿戴计算机再进行总线扩展.本文讨论了I2C总线技术,在此基础上提出了穿戴计算机I2C总线扩展的设计方案,并利用电平转换器进行了TTL电平到RS-232电平的转换,实现了I2C扩展总线和主计算机通过串口通讯.最后进行了实际应用设计.The use of the wearable computer in the actual living is very wide , it can be used not only in military but also in civil. The wearable computer must be conformable with the different condition, because it has to work at the multifarious surroundings. The resource of the single-chip is short enough to be satisfied with the different requirement, it need to extend the monolithic processor. This paper puts forward the design scheme of the equipment for the wearable computer of the I2C Bus. It convert the TTL level to RS-232 level by the level switch, achieve the communication between the single-chip and the serial port of the coraputer. Finally it processes the design for the practical application.

关 键 词：可穿戴计算机 I^2C扩展总线 数据采集 I^2C总线 电平转换器 移动计算 总线扩展 串行通信 

分 类 号：TP368.33[自动化与计算机技术—计算机系统结构] TP336[自动化与计算机技术—计算机科学与技术]