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设计了一款应用于家庭用户的多功能留言机.考虑可编程逻辑器件(FPGA)具有灵活的可配置性、升级方便、集成多IP核方便完成片上系统(SOC)的设计等特点,采用可编程逻辑器件(FPGA)和嵌入式软核NIOSⅡ处理器完成系统设计.本文设计基于50 MHz的系统时钟,利用SOPC定制用户系统,采用软硬件协同设计的方案,可于2min之内完成图像的采集和JPEG压缩,通过触摸屏方便与用户间的交互,支持语音留言、留言提示、电子钥匙、用户管理(播放、查看历史、备忘以及删除等)、电子时钟、语音报时、自动待机和屏保等功能.
Designed a multifunctional message machine for home users.Considering the characteristics of programmable logic device (FPGA) such as flexible configurability, easy upgrade, integrated multi-core IP to facilitate the design of system-on-chip (SOC) (FPGA) and embedded soft NIOS II processor.This paper designs a system clock based on 50 MHz, uses SOPC to customize the user’s system and adopts the collaborative design of software and hardware to finish the image acquisition within 2min And JPEG compression. It supports voicemail, message prompt, electronic key, user management (playing, viewing history, memo and delete, etc.), electronic clock, voice announcement, auto standby and screen saver through touch screen to facilitate the interaction with users .