The schematic, firmware, and software can be downloaded from Dallas Semiconductor's FTP site. The reference design includes a complete schematic, firmware, and a low level C++ serial port code to jump-start any application that would like to incorporate 2-wire devices. In addition to providing general insight on designing hardware, firmware and software to enable PCs to communicate with ICs, a complete PIC microprocessor reference design is presented to show how PC applications can be built around 2-wire devices. This application note discusses how to build an inexpensive microprocessor circuit to allow a PC to communicate with a 2-wire device using its serial port.
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