CAN总线控制系统的组态软件研究，值得一读。
CAN bus control system configuration software research, it is worth reading.
图2 - 8。在一个二级总线上对于一个设备的读请求的流程。
Figure 2-8. The flow of a read request for a device on a secondary bus.
读和写操作是通过两条公共的数据总线进行的：其中一条联结32个奇数列，另一条联结32个偶数列，用一个公用的主放大器把数据输出。
Read and write-operations are carried out by two common data buses: one is connected with the 32 odd rows, the other is for the 32 even rows. The data output is executed by a common main amplifier.
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