To mobile communication requirement of portable device, a USB On-The-Go (OTG) communication system terminal, based on Freescale's 32-bit MCU -MCF52223, is designed in the paper. The system terminal can implement USB host function and USB peripheral function. The system design includes software part and hardware part. The hardware design includes power management circuit and interface circuit design. The OTG software on the IDE of CodeWarrior is designed by component thinking. Firstly, we build the OTG softwar…
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