DSP并行I/O自举加载方法研究  

Research on Boot-load Method of DSP Parallel I/O Space

作　　者：陈启兴[1] 于红兵[1] 祁秋红[1] 

机构地区：[1]成都信息工程学院通信工程学院,四川成都610225

出　　处：《通信技术》2012年第5期95-97,共3页Communications Technology

基　　金：四川省科技厅科技项目(No.11JC0127)

摘　　要：分析了TMS320VC5402二次引导法的特点,明确了该方法对用户程序大小的要求。结合工作实际,提出了一种切实可行的并行I/O空间自举加载方法。对于并行I/O空间自举加载方法,如果TMS320VC5402有扩展RAM,则用户程序最多为36 kW(微计算机模式)或略小于48 kW(微处理器模式);如果TMS320VC5402无扩展RAM,则用户程序的最多为15.875 kW。实践证明,该方法构思新颖、操作简单,并能简化系统软硬件设计工作,具有很高的实用价值。The secondary guide of TMS320VC402 boot-loader is analyzed,and the size of user program for this method defined.Based on practical work,a practicable parallel I/O space boot-load method is proposed.For this new method,if TMS320VC5402 has an expanded RAM,the size of user program is no more than 36 kW（for micro-computer mode） or slightly less than 48 kW（for micro-processor mode）;if it has no expanded RAM,the size of user program is no more than 15.875 kW.Practice indicates that this method is original in conception and simple in operation,and could simplify the hardware and software design,thus is very applicable.

关 键 词：自举加载 TMS320VC5402 并行I/O空间 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]