全志A20 uart使用说明书

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1、A20AA2020uartuuartart使用说明onlyV1.0VV1.01.02013-08-0822013-08-08013-08-08allwinnertechforA20uart使用说明Copyright©2013AllwinnerTechnology.AllRightsReserved.-1-RevisionRRevisionevisionHistoryHHistoryistoryVersionVVersionersionDateDDateateChangesCChangeshanges

2、comparedccomparedomparedtottoopreviousppreviousreviousissueiissuessueV1.02013-03-15初建版本onlyallwinnertechforA20uart使用说明Copyright©2013AllwinnerTechnology.AllRightsReserved.-2-目录1.前言.........................................................................

3、..................................................41.1.编写目的.........................................................................................................41.2.使用范围...............................................................................

4、..........................41.3.相关人员.........................................................................................................42.模块介绍.........................................................................................................

5、..........52.1.功能介绍.........................................................................................................52.2.体系结构描述.................................................................................................52.3.硬件介绍...........

6、..............................................................................................62.3.1.硬件结构框图.......................................................................................62.3.2.A20UART口GPIO说明.....................................

7、................................72.3.3.UART标准时序图................................................................................92.4.源码结构介绍.................................................................................................92.5.模块配置介绍.....

8、............................................................................................92.5.1.sys_config.fex配置...............................................................................only92.5.2.打印串口的配置........................