AM3358的PRU的GPI有“Direct Input”,“16-Bit Parallel Capture”以及“28-Bit Shift In”三个功能,我想使用“16-Bit Parallel Capture”功能,因为它能在时钟上升沿时捕捉电平,比较高速,但我只用到其中一位(1个管脚),其他位的管脚作为ARM的其他外设引脚(如LCD,GPMC功能引脚等),不想因为PRU设置为“16-Bit Parallel Capture”而影响到这些ARM功能引脚。不知这种需求是否可行?
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AM3358的PRU的GPI有“Direct Input”,“16-Bit Parallel Capture”以及“28-Bit Shift In”三个功能,我想使用“16-Bit Parallel Capture”功能,因为它能在时钟上升沿时捕捉电平,比较高速,但我只用到其中一位(1个管脚),其他位的管脚作为ARM的其他外设引脚(如LCD,GPMC功能引脚等),不想因为PRU设置为“16-Bit Parallel Capture”而影响到这些ARM功能引脚。不知这种需求是否可行?