This reference design (RD) describes a 1-Wire® Master with PicoBlaze™ 8-bit embedded microcontroller design implemented and tested on the Xilinx® Spartan®-6 LX9 MicroBoard by Avnet. This example design uses the DS28EA001-Wire digital thermometer with sequence detect and PIO on a peripheral module. This module uses the Pmod™ port standard developed by Digilent Inc.
The system shown in Figure 1 shows the high-level implementation of the design. The system requires:
PicoBlaze processor
2 BRAMs (each 1024 x 18-bit)
RS-232 port (USB UART)
LEDs for alarms
681Ω ±1% pullup resistor
Maxim Integrated DS28EA00 peripheral module (DS28EA00PMB1#)
Xilinx platform cable USB
Figure 1. System design block diagram.
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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.
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