用C语言设计TMS320VC54x系列DSP的用户bootloader程序  

Using C Language Design TMS320VC54x Family Of DSP User Program

作　　者：武晓春[1] 

机构地区：[1]海军计算技术研究所,北京100841

出　　处：《计算机与网络》2009年第3期142-144,共3页Computer & Network

摘　　要：TMS320VC54x系列DSP上电时,需要通过掩膜在DSP片上ROM的bootloader程序完成对用户主程序的自举过程。受限于片上bootloader程序,在外扩FLASH并行自举方式下,用户主程序可执行代码不能超过32K。这种情况下,需要用户自行设计用户bootloader程序,通过二次自举的方法,完成用户主程序的自举。本文介绍一种用C语言嵌套汇编的方法,设计用户的boot loader程序。The TMS320VC54x need to transfer code from external source into internal or external program memory by executing bootloader code in internal ROM following power-up. The length of user coder must be under 32K in the paralter boot mode when booting from external FLASH ROM as a result of limitation of internal bootloader code. We have to design our bootloader program to be transferred from external source to internal program by executing internal bootloader program firstly ,then our booltloader is execut- ed to transfer main code secondly.This paper introduce a method to design user boodoader code by assemble language embedded in C language.

关 键 词：DSP外扩FLASH 并行自举 二次自举 

分 类 号：TP368.12[自动化与计算机技术—计算机系统结构]