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DM368高频启动问题



TI专家你们好,我现在的情况是串口烧写UBL和UBoot,烧arm 297MHz ddr 270MHz的UBL可以正常启动,烧arm 432MHz ddr 340MHz的UBL就跑到Uboot就卡住了,卡住的地方有两个:I2C Ready或者Nand : Nand Device...请专家们释疑,非常感谢。