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ddr leveling 结果偏差比较大,如何处理

采用论坛刘工发的MLO:e2echina.ti.com/.../53263

烧入nand进行leveling,结果偏差比较大

 leveling结果分析:

    1、同一个板子某个参数差别比较大(相差6)

    2、不同板子之间差异比较大(差9)

    问题

    1、leveling参数最终如何确定

    2、结果不一致是否能说明ddr或者pcb有问题

谢谢

0741.leveling结果汇总.xlsx