摘要
DSP芯片功耗低,具有很高的运算处理能力,且其EMIF接口可以实现与外部存储扩展的无缝连接。但是DSP本身没有足够的ROM来存放用户程序,这使得在DSP重新上电后,用户加载的程序会丢失,需要重新在线烧写,十分不便。本文介绍一种利用EMIF的FLASH存储扩展来实现用户程序自动加载的方法。用户程序二次引导加载即通过两次程序的引导加载实现上电后在DSP内自动运行用户程序。两次程序引导分别为:一:实现搬运功能的程序加载;二:用户编写程序加载。
DSP chip of C6000 has low power consumption and high processing capacity. Using the EMIF interface of DSP can realize the seamless connection between DSP and external storage. While DSP does not have ROM to store the user program, the program will be lost when the power is reconnected, making the design very inconvenient. And it needs download program again. This paper introduces a method of using FLASH storage expansion by using EMIF of DSP to achieve the user program automatic being loaded.
出处
《自动化技术与应用》
2016年第8期47-51,共5页
Techniques of Automation and Applications
基金
国家极大规模集成电路制造装备与成套工艺的国家重大科技专项(编号2009ZX02207)
