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TI:
你好，我们使用OMAPL138片子的GPIO中断做握手信号，根据器件手册，清除中断时，
向相应的INTSTATn状态标志位写逻辑1即可清除对应端口的中断状态。但是在我们的板子上，如此做，却始终无法清除GPIO中断，请指点。
llw
不防参考一下附件的例子。
