Run the Demonstration Standalone no‐OS (AD40xx)

In addition to the DataStorm DAQ development kit running either in standalone mode or remotely via Ethernet cable, it can also run for no-OS software while connected to computer via an usb cable.

Configuration for no-OS software access

The AD40xx Evaluation Platform in this configuration is comprised of the following components:

• Analog Devices EVAL-AD400x-FMCZ data converter board
• DataStorm DAQ (Trenz Intel® Cyclone® V SoC TEI0022 Development Board) (includes 12VDC power supply)
• Digilent Analog Discovery 2 Signal Generator with dual outputs
• Digilent Discovery BNC adapter board
• Two (2) BNC to SMA Cables
• USB connectors

Configure BOOTSEL DIP Switches

Select the SD card as the boot source for the processor.

Configure FMC_VADJ DIP Switches

The FMC_VADJ power rails provide power to the EVAL-AD400x-FMCZ via the FMC interface. This is an adjustable voltage. It must be set to 3.3V. Modify the VID_SW DIP switch settings to select 3.3V.

Assemble the Hardware

Follow the steps in the order shown below.

1. Insert the Micro SD card into the SD card slot
2. Insert the EVAL-AD400x-FMCZ FMC connector into the FMC mating connector on the DataStorm DAQ board
3. Connect the Signal Generator to the EVAL-AD400x-FMCZ SMA connectors
4. Connect the power supply to the DataStorm DAQ
5. Plug the AC-DC adapter into an AC outlet

Signal Source

The AD4020 requires a Differential signal from a signal generator. AD4020 accepts input voltage from -Vref to Vref centered around VCM, and input full swing equal to Vref, above which ADC conversion will saturate. The AD4020, in its default configuration, is setup with Vref equal to VDD i.e 5v and converts VCM = VDD/2 through onboards register dividers. So AD4020 requires the input signal to be centered around VCM=2.5V (as in yellow tag #5 below). Connect the Differential signal source to VIN+ and VIN- input of AD4020.

Install (if not already done) the Digilent WaveForms App.

Open the WaveForms App and Click on Wavegen in the left margin which opens a waveform widow

Click on Channels and select 2
Select Type as Sine
Select Frequency or Period
Set Amplitude to 2V
Set Offset (Common Mode Voltage) to 2.5V
For Channel 2, Match the Channel 1 settings
Select the Phase to 180 degrees for Inverse signal
Click Run All

Software for no-OS access

There are a few software components that need to be installed in order to run this demo successfully:

1. A SW terminal like Tera Term VT or Putty

Connect to the target terminal

• A wired Micro USB serial port connection between the host PC and the embedded target is required
• Launch a linux terminal (like Tera Term VT or Putty) and connect using serial port
• Select 115200 baud
• Select the appropriate target COM port

Run the demonstration standalone for no‐OS (AD4020)

Power up the unit using this hardware configuration.

Application will be automatically run on the system boot up. No configuration is required.

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