摘要
文章介绍了一种由单片机实现的打印机无线共享接口电路的工作原理,硬件结构和软件设计。硬件电路分为从卡和主卡两部分。从卡负责与计算机通信,主卡负责与打印机通信,从卡与主卡间采用无线射频收发芯片nRF401来实现接口间的数据传送。软件设计中采用循环优先权方式解决多台计算机同时申请打印时优先权如何分配的问题。该设计有效地解决了传统的有线共享打印机接口带来的诸多不便,使打印机共享更为方便。
The paper introduced the work principle, hard structure and software design of interface card of wireless multi-computer shared printer that is achieved by single chip computer. The hard circuit is divided into two parts, master card and slave card. Master card is designed to communicate with printer, slave card is designed to communicate with pc, the wireless communication between master card and slave card is achieved by the wireless RF transceiver chip nRF401. The software design is mainly solving the problem that how to allot priority when more than two computers apply for using pinter at the same time. It is completed by circulation priority. The design has effectively solved the traditional wtred shared printer interface brought about a lot of inconvenience, and make it more convenient for printer sharing.
出处
《企业技术开发》
2009年第3期55-57,共3页
Technological Development of Enterprise
