摘要
为了解决C55X系列DSP系统程序代码的保存问题,文中设计了一种利用JTAG接口,在线烧写DSP片外Flash并实现自举启动的方法。这种在线编程方法利用EMIF接口将TMS320VC5501和FLASH芯片相连接,通过搬移程序将应用程序的已初始化段按照C55X系列DSP引导表格式烧写进外部扩展的FLASH存储器中.从而实现自举启动。该方法为DSP系统的软件维护和升级带来了方便,具有实际应用价值。
In order to preserve the application code of the C55x DSP, a method of online programming external flash and bootloading using JTAG based on TMS320VC5501 chip is designed. This method connects the DSP and FLASH through the EMIF, moves the initialized section of the application code to external flash based on the format of the C55x DSP BootLoader using the flitting program. This method is convenient for user to maintain and upgrade the DSP software, and could be extensively applied to other DSP systems
出处
《通信技术》
2009年第9期193-195,共3页
Communications Technology
