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AM335x Sys boot[0:4] 启动问题请教



大家好,

功能需求是SD->Nand启动顺序,查看Manual得知,00100b 和11100均可,如下:

但经过自己测试后,将相同的MLO和app放入SD卡中,第一个boot顺序要等三分多种后才加载执行。

第二个00100模式上电后立即就可加载执行。

想请问大家这个差异来自哪里?