EM335x是基于TI Cortex-A8 AM335x处理器的工控主板，预装正版WEC7（WEC2013）或Linux操作系统，板载双网口、双CAN、6串口等丰富的通讯接口资源。EM335x通过主板两侧的双排插针与应用底板相连，同时实现板卡固定和电信号的连接。
为了方便用户连接显示屏，EM335x主板上的CN3引出了常用的18-bit RGB显示信号和4线电阻触摸屏接口。但将显示和触摸屏接口集成在主板上，在方便了LCD连接的同时也给用户整机设计造成了一些限制，同时在一些对产品可靠性要求较高的场合，ZIF插座的物理连接形式也引起了一些用户的担心。此外，高分辨率的显示屏通常采用LVDS接口，EM335x需要通过TTL RGB->LVDS转电路才能与这类显示屏相连。
基于以上考虑，我们在现有产品双排插针结构的基础上，发展了一套英创公司自有的嵌入式主板与应用底板的连接规范——英创智能模块架构（Emtronix ***art Module Architecture，以下简称E***ARC）连接规范，E***ARC与现在双排针结构的***大区别在于与应用底板的连接从双排针变成了三排排母，主板的所有信号都通过板卡两侧的三排母座引出。
我们基于E***ARC连接规范重新设计了EM335x，而成为了新的产品系列：E***ARC 335x系列（简称E***335x）。E***ARC 335x系列目前包含E***3352和E***3354两款主板，分别对应于EM3352和EM335x，它们在资源配置上几乎相同，只是LCD显示接口从E***ARC 335x系列的CN1引出，同时支持18-bit(24-bit) TTL RGB类型或24-bit的LVDS类型显示屏，触摸接口也从CN1引出，支持电容或电阻触摸屏可选。
另外，由于EM335x 的管脚资源有限，其ISA总线与部份GPIO是复用的，而E***ARC 335x系列的ISA与GPIO完全***，使得对系统资源的利用达到了***大化。
MAC 82A-FC-CKA-TM-D?AAP-1DA *USED*
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PARKER PS2998P VALVE KIT *NEW IN A BOX*
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