摘要
DSP没有片内存储器,目标文件存储在FLASH中。通常程序升级需要有仿真器和CCS集成开发环境。以TI公司的TMS320VC5509A处理器为例,提供了一种通过RS232串口进行程序升级的解决方案。介绍了方案的系统结构和芯片组成,详细说明了设计中的4个关键点:DSP选址空间拓展、串口数据收发、程序文件解析和FLASH操作。通过实验验证,该设计已经在实际项目中广泛运用。
The DSP processor has no internal memory, so the target file is stored in FLASH. Usually, the emulator and the CCS IDE are required to update the program in DSP. With TI＇s TMS320V5509a DSP processor as an example, a solution to DSP parallel flash program upgrade by using RS232 serial interface is provided. The system architecture and chip component of the implementation are given, and the 4 key points of the design are described in detail including the extension of DSP addressing space, sending/receiving data on serial interface, the analysis of execute program file and the operation on flash. Through the experimental verification, the design is now widely-used in practice.
出处
《通信技术》
2012年第1期141-143,共3页
Communications Technology
