基于DSP TMS320VC5509A图像采集的脱机系统设计与实现

Design and implementation of offline system of image acquisition process based on DSP TMS320VC5509A

首先介绍了脱机系统的结构,并给出系统中核心芯片DSP TMS320VC5509A与存储芯片EEPROMAT25640的硬件电路设计方案,从该DSP的各种BOOTLOADER方式中分析研究,考虑到烧写速度及电路设计简洁性等因素,采用了SPI EEPROM模式。随后介绍了加载过程中的数据表——BOOT表的概念及生成方式,详细介绍了程序烧写至存储器的过程及软件实现的流程图,最终用一个实例实现系统的脱机运行。

The offline system is introduced. The circuit design of the DSP TMS320VC5509A as the kernel chip and the EEPROM AT25640 as the memory chip in this system is given. The feasible approaches of the DSP BOOT- LOADER and the speed and complexity of the circuit are studied and the SPI EEPROM load is adopted. The data table in the loading process-the concept and formation of the BOOT table is then introduced. The complete procedure of the programming memory chip and the flow chart of the source code are described in detail. An example of the realization of the system off line operation is given.