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6678,keystone I 软件包中的IPC_example软跑可以跑通,但是硬件上仿真无法写入IPCGR,



在自制的处理板,跑ti给的keystone I 软件包中的IPC_example例程无法跑通,显示无法解锁核内部的寄存器空间,无法写入IPCGR的值,但是软件跑时可以跑通,请问这个是原因?