基于SEP4020的嵌入式音频系统设计  

Design of Embedded Audio System Based on SEP4020

作　　者：齐浩淳[1] QI Hao-chun （IC Embedded System Lab,Southeast University,Nanjing 210096,China）

机构地区：[1]东南大学IC嵌入式系统实验室,江苏南京210096

出　　处：《电脑知识与技术》2008年第11期964-966,968,共4页Computer Knowledge and Technology

摘　　要：SEP4020是东南大学ASIC中心自主开发的一款基于ARM7TDMI核的微处理器，通过IIS音频总线与UDA1341型CODEC构成一种嵌入式音频系统，实现音频的播放和采集。该文介绍了基于SEP4020和IIS总线的嵌入式音频设备的硬件体系结构及其驱动程序的设计。给出相关硬件电路的说明及嵌入式系统下音频驱动程序的设计要点。SEP4020 which is developed by National ASIC System Engineering Research Center of SEU is a microprocessor based on ARM7TDMI core. The playing and sampling of audio signals is realized with an embedded audio system constructed by connecting the SEP4020 and CODEC UDA1341 with IIS bus. The hardware system structure and design of device driver of Embedded Audio device based on SEP4020 and IIS Bus interface have been introduced in the article. The explanations of relative hardware designs, as well as the key features of the audio devices driver under embedded system are provided.

关 键 词：SEP4020 音频系统 驱动程序 IIS总线 UDA1341 

分 类 号：TP338[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术]