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请教am335x触摸屏问题



问题1:SDK07.00触摸屏按下(pen_down)后,松开弹起(pen_up)时光标会漂(即弹起时坐标偏了,可打印出每次坐标做比较),ti-processor-sdk03.01也有这个问题;
问题2:SDK07.00触摸屏驱动源码的中断函数使用了udelay(SEQ_SETTLE)延迟函数导致严重吃cpu(最高时占用cpu到达20%)。