摘要
当需要更新DSP业务系统的应用软件时,为了避免利用仿真器所带来的不便和硬件损坏,采用了PCI总线技术来取代仿真器,完成系统应用程序的更新;针对带有外围FLASH的DSP系统,设计了一整套DSP外围FLASH启动流程和应用程序的PCI更新方法;通过实验证明,DSP业务系统可以通过上位机利用PCI总线完成DSP外围FLASH的应用程序的更新,同时在DSP上电启动时,也可以根据上位机的命令,选择贮存在FLASH中不同的应用程序加载运行。
In DSP embedded system, PCI bus technology was adopted to update the DSP system application software in stead of emulator for avoiding the inconvenience and hardware damage caused by using emulator. According to the DSP system with periphery FLASH, an overall booting flow of DSP periphery FLASH and an application program update method by PCI are designed. The experiment proved that the DSP business system can update the application program of DSP periphery FLASH through the upper computer by PCI bus. Meanwhile, different application program can be chosen to load to DSP RAM according to the host command, during DSP is booting.
出处
《现代电子技术》
2013年第6期113-117,共5页
Modern Electronics Technique
