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请教28035的MOV指令(高手进)



现在有个项目,是这样的:GPIO28要呈现高低电平变化,我使用了如下语句:

EALLOW   

  MOVW  DP, #_GpioDataRegs.GPATOGGLE    

   MOVL  @_GpioDataRegs.GPATOGGLE, #0x10000000  

   EDIS

在CCS3.3中显示编译报错,请教如何改正,我换成GPIO10是可以的,上面语句改成;

EALLOW   

  MOVW  DP, #_GpioDataRegs.GPATOGGLE    

   MOV  @_GpioDataRegs.GPATOGGLE, #0x0400  

   EDIS

这样是可以的,请问如何对高16位的GPIO进行操作,望高手不吝赐教。小弟在此先行谢过啦。