Abstract
In this paper, a new 1-wire transmission system for the host-slave communication is introduced, which is composed of STM32 embedded host system, CPLD logic control system and PIC slave system. The transmission line is not only for data transmission between host and 32-way slave, but also for power supply for 32-way slave. This paper details the hardware and software implementation method of each component module based on the given system function, and highlights the circuit design method of power and signal transmission on the same line in the 1-wire transmission system. Experiment results are shown in the final chapter.
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