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大家好：
我想请问一下AM3352怎么将其中一些不用的引脚配成GPIO的模式，比如C13引脚，我内核里面之前不是默认为GPIO功能的，现在想把它用做GPIO去点个LED。我的软件上需要怎么修改？具体要改哪些东西。大神们请指教一下，谢谢！
