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RM 48芯片的寄存器奇怪的现象

Other Parts Discussed in Thread: HALCOGEN

大家好,

    我使用的是RM 48 952芯片,在特权模式下对PMM的PRCKEYREG 写值时,只有0写0x6能写入,其他的值如9h 和fh 都写不进去。  CMM现象就更奇怪了:第一次运行,写不了0xF  ,当写入0x6H后就可以写入0xF了,,,,谢谢!!!不胜感激......