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你好，板子上有CPLD(当硬件用)，fpga，dsp，dsp6657采用EMIF norflash启动，6657上电后会点灯，但是偶尔不能加载成功，原因不明？是上电时序造成的还是其他原因呢？
大神指导下。
先检查上电时序，电压纹波，时钟输入和reset信号的稳定性。
