Zybo Z7-10 XADC Demo

Note: The demo contained in this repository has been moved and this repository is no longer being actively maintained. Check out the Zybo Z7 XADC demo page on Digilent Reference for more information.

Description

This project is a Vivado demo using the Zybo Z7-10 analog-to-digital converter ciruitry and LEDs, written in Verilog. When programmed onto the board, voltage levels between 0 and 1 Volt are read off of the JXADC header. Each XADC channel will control the brightness of an LED as shown in the following table. See the Zybo Z7-10's Reference Manual for more information about how the ZYNQ FPGA's XADC is connected to header JXADC.

XADC Channel	JXADC Pins	LED #
AD14	JXADC1(P) / JXADC7(N)	LD0
AD7	JXADC2(P) / JXADC8(N)	LD1
AD15	JXADC3(P) / JXADC9(N)	LD2
AD6	JXADC4(P) / JXADC10(N)	LD3

Requirements

• Zybo Z7-10: To purchase a Zybo Z7-10, see the Digilent Store
• Vivado 2018.2 Installation: To set up Vivado, see the Installing Vivado and Digilent Board Files Tutorial.
• MicroUSB Cable
• Wires and a Circuit to Measure

Demo Setup

1. Download and extract the most recent release ZIP archive from this repository's Releases Page.
2. Open the project in Vivado 2018.2 by double clicking on the included XPR file found at "<archive extracted location>/vivado_proj/Zybo-Z7-10-XADC.xpr".
3. In the Flow Navigator panel on the left side of the Vivado window, click Open Hardware Manager.
4. Plug the Zybo Z7-10 into the computer using a MicroUSB cable.
5. In the green bar at the top of the window, click Open target. Select "Auto connect" from the drop down menu.
6. In the green bar at the top of the window, click Program device.
7. In the Program Device Wizard, enter "<archive extracted location>vivado_proj/Zybo-Z7-10-XADC.runs/impl_1/top.bit" into the "Bitstream file" field. Then click Program.
8. The demo will now be programmed onto the Zybo Z7-10. See the Introduction section of this README for a description of how this demo works.

Next Steps

This demo can be used as a basis for other projects, either by adding sources included in the demo's release to those projects, or by modifying the sources in the release project.

Check out the Zybo Z7-10's Resource Center to find more documentation, demos, and tutorials.

For technical support or questions, please post on the Digilent Forum.

Additional Notes

For more information on how this project is version controlled, refer to the Digilent Vivado Scripts Repository1