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Master-slave device communication system based on current
Master-slave device communication system based on current
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机译:基于电流的主从设备通讯系统
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摘要
A master-slave communication system includes a master device, a plurality of slave devices, and a bus providing communication channels therebetween. The master device includes a first micro control unit (MCU), a first power supply module, and an address setting module. Each slave device includes a second MCU and a second power supply module connected to the first power supply module through the address setting module. The address setting module detects a current output from the first power supply module, and outputs an ID address setting signal which is directly proportional with the current to the first MCU and the second MCU of a new slave device, the second MCU of the new slave device sets an ID address according to the ID address setting signal, the first MCU records the ID address as the ID address of the new slave device according to the ID address setting signal.
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