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C6678程序跑飞的问题,请大牛们指导一下!!!

RT,我参考Keystone Lib编写的PLL初始化,DDR3初始化函数,另外编写了EDMA数据传输函数,在EVM6678板卡上测试时没有问题的;

当在我们自己的板卡上时,就会出现程序跑飞的情况,跑飞的位置不确定,怀疑是PLL初始化的问题,可是查询PLL status寄存器好像也都没有什么问题,DDR初始化貌似也通过了,就是经常会跑飞(No symbols are defined for 0xxxxxxx),程序无法再运行。

我是新手,刚刚入门,请问各位大神在刚刚用6678时是否也遇到相关的问题?后面如何解决的?请求指导!谢谢!