我的从机加上POWER_SAVING宏以后，主机就不能与之正常连接了，调试输出停在了
LCD_WRITE_STRING( "Connected", HAL_LCD_LINE_1 );//输出Connected
LCD_WRITE_STRING( bdAddr2Str( pEvent->linkCmpl.devAddr ), HAL_LCD_LINE_2 );//输出设备地址
LCD_WRITE_STRING( "Disconnected", HAL_LCD_LINE_1 );//输出Disconnected
而去掉POWER_SAVING就可以正常，请问这是为什啊？