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发明授权
CN104391818B 一种EtherCAT双网数据读写系统及其方法 有权

一种EtherCAT双网数据读写系统及其方法
摘要：
本发明涉及一种EtherCAT双网数据读写系统及其方法，所述系统包括异步并行总线接口模块、数据缓存区、EtherCAT读写控制模块、配置信息模块和中断脉冲合成模块；所述数据缓存区包括A网数据缓存区和B网数据缓存区；所述系统分别与主控芯片和ESC芯片连接；所述方法包括启动方法，读EtherCAT数据方法和写EtherCAT数据方法。本发明提高了通信的可靠性，提高主控系统整体的实时性。本发明避免了主控芯片因丢失一次中断信号的下降沿后，再也无法响应ESC芯片ET1100中断信号的问题。
摘要（英）：

The invention relates to an EtherCAT dual-network data reading and writing system and a method thereof, wherein the system comprises an asynchronous parallel bus interface module, a data cache region, an EtherCAT reading and writing control module, a configuration information module and an interruption pulse synthesis module; the data cache region comprises an A-network data cache region and a B-network data cache region; the system is connected with a master control chip and an ESC chip respectively; the method comprises a starting method, an EtherCAT data reading method and an EtherCAT data writing method. The EtherCAT dual-network data reading and writing system and the method thereof improve the reliability of communication and the real time nature of the whole master control system. The EtherCAT dual-network data reading and writing system and the method thereof avoid the problem that the master control chip cannot further respond to an ET1100 interruption signal of the ESC chip due to losing a falling edge of the interruption signal once.

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