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A small APSoC project for testing Temperature and Relative Humidity readings of a IIC sensor

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timothystotts/fpga-iic-hygro-tester-2

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fpga-iic-hygro-tester-2

FPGA IIC HYGRO Tester Version 2

by Timothy Stotts

Note that this project is deprecated. The most recent project, with wider hardware support and occasional updates, is Version 3 and is located at: fpga-iic-hygro-tester-3

Description

A small FPGA project of different implementations for testing Temperature and Relative Humidity readings of a I2C sensor. The design targets the Digilent Inc. Zybo-Z7-20 FPGA development board containing a Xilinx Zynq-7000 APSoC (all programmable system on chip). Three peripherals are used: Digilent Inc. Pmod HYGRO, Digilent Inc. Pmod CLS., Digilent Inc. Pmod SSD.

The design is contained in the folder HYGRO-Tester-Design-Zynq.

The folder HYGRO-Tester-Design-Zynq contains a Xilinx Vivado IP Integrator plus Xilinx SDK design. The first ARM A9 CPU is used to talk with board components, a temperature and relative humidity sensor, a 16x2 character LCD peripheral, and a two-digit Seven Segment Display. The FPGA peripherals are communicated with by an AXI subsystem design consisting of interconnects and memory mappings using the Xilinx Vivado IP Integrator Block Design.

A Xilinx SDK project contains the hand-off from Xilinx Vivado of the hardware design, and implements a very small Standalone program in C. From the Vivado hand-off, drivers for the peripherals and board components such as switches, buttons, LEDs, are compiled together with a Standalone C program in a total of 3 Xilinx SDK projects within a single workspace. (SDK must be run with the Vivado hand-off specified, and then the other two version-controlled projects imported into a workspace that is not version controlled.)

Project information document:

./HYGRO Sensor Readings Tester - Zynq.pdf

HYGRO Sensor Readings Tester - Zynq - info

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A small APSoC project for testing Temperature and Relative Humidity readings of a IIC sensor

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