5.1 Example Design
The example IOCC design is based on the Zynq Hardware Platform developed as part of the 2013
Speedway course titled Developing Zynq All-Programmable SoC Hardware with Xilinx Vivado
2013.3. For more information on how to build this design, please discuss your course options with
your Avnet/Silica FAE.
The example design interfaces the Zynq processing system (PS) to simple logic built up in the
programmable logic (PL). The purpose of the PL design is to control the brightness of the eight
LEDs on the IOCC. This is done with a PWM. The PWM can be controlled from the PS USB-UART,
or the PWM can also be controlled by input through the four push buttons, which go through a PL
debouncer. A block diagram for the design is shown below.
Figure 3 – MicroZed/IOC C Hardware Design
The example design must be downloaded and then programmed either to the SD Card or the QSPI
Flash. Download these designs now as follows:
1. Go to www.microzed.org
2. Click on Reference Designs/Tutorials
3. Click on I/O Carrier Card’s View All button.
4. Under the IO Carrier Card Base Design, click the Login/Register button below, then click
on Download.
5. Save the file, then unzip it.
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