| Summary: | 碩士 === 國立交通大學 === 電機與控制工程系 === 91 === The infrared wireless transceiver is the point-to-point communication between electronic devices. It can be widely applied to control electric appliances and to carry information since the infrared element is inexpensive and simple. This thesis designs a high-speed all-digital infrared wireless transceiver system and presents a FPGA implementation. The key contribution of this thesis is to propose an all-digital phase-locked system to maintain the synchronization between the electronic appliances. In convention, this problem is solved by using the phase-locked loop, the realization of which offen needs analogy elements. We propose a phase-locked system designed by the concept of state machine. This system requires only digital elements for implementation and can obtain acquisition within the period of one transition of the NRZ signal. We use the FPGA, FLEX10K100ARC240-1, with the system clock of 32MHz to realize an 2Mbit/s infrared wireless transceiver module. Experiments show that the transeciver works correctly when the distance between devices within 1.5m.
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