Abstract: Designers who must interface 1-wire temperature sensors with Xilinx field-programmable gate arrays(FPGAs) can use this reference design to drive a DS28EA00 1-wire slave device. The downloadable softwarementioned in this document can also be used as a starting point to connect other 1-wire slave devices. The systemimplements a 1-wire master connected to a UART and outputs temperature to a PC from the DS28EA00 temperaturesensor. In addition, high/low alarm outputs are displayed from the DS28EA00 PIO pins using LEDs.
Abstract: Communication with 1-wire slave devices requires a 1-wire master. There are numerous ways to build a 1-wire master (see reference design 4206, "Choosing the Right 1-wire Master for Embedded Applications"). Thisdocument describes the DS1WM, a synthesizable 1-wire master that can be implemented in an application-specificintegrated circuit (ASIC) or field-programmable gate array (FPGA).
Abstract: Designers who must interface 1-wire temperature sensors with Xilinx field-programmable gate arrays(FPGAs) can use this reference design to drive a DS28EA00 1-wire slave device. The downloadable softwarementioned in this document can also be used as a starting point to connect other 1-wire slave devices. The systemimplements a 1-wire master connected to a UART and outputs temperature to a PC from the DS28EA00 temperaturesensor. In addition, high/low alarm outputs are displayed from the DS28EA00 PIO pins using LEDs.
