摘要
本文详述了863子课题—“双频RFID读写器”的设计。根据项目的基本需求情况提出了扩展多串口通信子板方案,选择了PC/104并口总线通过并/串转换芯片TL16C554扩展四个串口的设计,分析了TL16C554的内部结构及外部特性,并据此给出了扩展电路电路图,对电路图进行了分析说明。
The design of the double-frequency RFID reader is described here in detail. The plan of extending a daughter board of multi-serial ports is putted forward , in which the LPT/COM inverse chip TL16C554 is selected to extend 4 serial ports by connecting to the PC/104 bus. The inner construction and outer characteristics of TL16C554 are analyzed and the extension circuit is given according it where the circuit is analyzed in detail.
出处
《传感器世界》
2007年第5期33-35,45,共4页
Sensor World
基金
国家"863"高技术研究发展计划(课题编号:2005AA420050)课题名称:无线射频关键技术研究与开发
