看了技术文档,上面很简单的说了这话
because OUT endpoints are not automatically armed when the FX2 enters Auto-Out mode,the firmware can safely switch the FX2 between Manual-Out and Auto-Out modes without any need to flush or reset the FIFOs.
大概意思是AUTO OUT断电不能自动装入数据,而是切换到手动的OUT。
这样搞自动的和手动的有什么区别?AUTO 还需要判断什么才像AUTOIN一样自动开始传输? |