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DM8148 检测不到NAND Flash GMPC 没时钟



大家好,我用DM8148 做块调试板子,上电后通过ccs下载nand-flash-writer.out, 运行发现读出的数据乱的。测试GMPC 没时钟信号,正常应该是50M 左右,

测试板子上,晶震,电压都正常,大家有没有好的建议,

板子的电源是同时上电的,没做上电时序,没知道给这个有关系没有,大家有没有好建议,谢谢!