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国产DDR3调试 遇到问题



 大家好 用的6657 DDR3用的是国产的 手册上说各操作指令序列与评估板上的MT41J128M16HA-125兼容,现在DDR的初始化过不去 

按照DDR3 PHY Calc v.xlsx、DDR3 Register Calc v4.xlsx修改过走线的参数 修改过DDR_SDTIM1、DDR_SDTIM2、DDR_SDTIM3、DDR_SDCFG 的参数 还是不行! 

执行到如下程序处 仿真器就会死掉 会是什么问题了???

KeyStone_DDR_full_leveling();
KeyStone_DDR_read_incremental_leveling(100);