The proposal based on USB Host/Slave controller chip CH375A, realized a USB-Host embedded in CAN bus data acquisition system and stored acquisition data of each node in U flash disk under MCU control.
该方案基于USB主/从控制芯片CH375A，在单片机的控制下，实现了CAN总线数据采集系统中嵌入USB主机，从而完成把各节点采集的数据存入U盘，取代了现场数据采集系统必须有一台计算机的模式。
Through using 16-bit freescale MCU embedded CAN controller as master chip in each node, it achieved the design of hardware circuit, so realized CAN physical layer and CAN data link layer.
各个节点设计上采用内置CAN模块的飞思卡尔16位单片机作为主控芯片来搭建硬件电路，以实现CAN总线的物理层和数据链路层。
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