基于SOPC的商品信息查询系统设计与实现

随着CPU性能的大幅提升,嵌入式系统的设计已经进入了更广泛的领域。在单一芯片上采用更合理的设计工艺、集成更多逻辑功能的SOC(片上系统)设计方式,已经成为了一个技术发展的趋势。其中SOPC(片上可编程系统)因为它的软件可编程的特性,更为许多嵌入式系统开发人员所青睐。本文介绍了一套基于ALTERA公司的NIOSII嵌入式CPU开发的GPRS商品信息查询系统。该系统根据SOPC的设计思想,采用ALTERA公司的NIOSII软核处理器、Telit公司的GSM模块、Atmel公司的射频基站芯片集成设计实现了GPRS无线数据通信、非接触式IC卡读写、商品信息查询显示等功能。论文从硬件设计与软件设计两个方面介绍了系统的开发流程。

The design and implementation of commodity-information query system based on SOPC

With the great growth of the processor's performance,the Embedded system design comes into a wider field.SOC design has become a technology development trend of Embedded System that is using more reasonable design-technics and integrating more logical functions on a programmable chip. And many designers prefer the SOPC,because of SOPC's programmable characteristic.This paper introduced a GPRS Commodity-Information Query System,which is based on NIOS II processor of Altera corporation.The system comprise Altera's NIOS II processor,Telit's GSM module and Atmel's RF base-station chip.Integrating the aboved realized the following founctions:GPRS wirless-communication,IC card's reading and writing,commodity information's querying and displaying,etc. This paper introduced the design flow from two aspects:software and hardware.