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c6455启动endianess问题



按数据手册上说,c6455启动时,会检测AEA13管脚来判断是little endian还是big endian。我的DSP6455的AEA13管脚是通过一个1K欧姆的上拉电阻连接到3.3V电源。但加载程序时却会提示DSP是big endian,无法加载little endian的程序。我有两套不同的板子,但AEA13都是上拉的,应该为big endian。其中一块板子偶尔会出现这个问题。另一块板子则是经常出现该问题。求指导,谢谢。