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AM5728下sd卡启动无打印

Other Parts Discussed in Thread: AM5728

hi:

    我将编译好的MLO和uboot.img放在sd卡的boot分区。板卡设置sd卡启动。但是通过串口无打印。没有任何的信息。

   串口是没有问题的,现在不知道是哪里出现问题导致无打印。