摘要
在舰载、机载等嵌入式信息处理设备中,TMS320C6455应用非常广泛,但是TMS320C6455的内部空间有限,为了解决TMS320C6455内部程序存储空间不够用的问题,在TMS320C6455+DDR2芯片的硬件设计方案下,研究了TMS320C6455应用程序的外部Flash加载方法及其烧写程序。提出了将应用程序加载到外部存储空间DDR2芯片上的软件设计方法,并且提出了一种不需要转换格式就可以通过烧写程序将用户程序写入Flash的方法,给出了二次加载程序的汇编代码及烧写程序的核心代码。这些代码在项目实践中验证了其正确性。
In embedded information processing equipments such as shipboard and airborne,TMS320C6455 is widely used,but the internal space of TMS320C6455 is limited.In order to solve the problem that the internal program memory space of TMS320C6455 is not enough,under the hardware design scheme of TMS320C6455+DDR2 chip,the external Flash loading method of TMS320C6455 application and its programming program are studied.A software design method for loading an application onto an external storage space DDR2 chip is proposed,and a method for writing a user program to Flash through a programming program without a conversion format is proposed,and assembly code of secondary loading program and core code of programming are given.These codes verify their correctness in project practice.
作者
陈俊凯
刘笑凯
周林
冯国兵
徐一凤
刘书萌
王龙
Chen Junkai;Liu Xiaokai;Zhou Lin;Feng Guobing;Xu Yifeng;Liu Shumeng;Wang Long(The Sixth Research Institute of China Electronics Information Corporation,Beijing 100083,China)
出处
《信息技术与网络安全》
2019年第2期75-78,共4页
Information Technology and Network Security
