This version (27 Sep 2022 13:52) was approved by vikas jeevannavar.
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EVAL-CN0561-FMCZ User Guide

CN0561 A multi-channel data acqusition (DAQ) system measures a real world phenomenon such as temperature, force, acceleration, or vibration, converting measurements into digital values for data processing, storage, or transmission. A typical DAQ system is comprised of a sensor, analog filtering and signal conditioning circuitry, an analog-to-digital converter (ADC), and digital controller. CN0561 shown below is for High performance Piezo Accelerometer with Fault Protection. writeup

Hardware Setup

Equipment Required

  • CN0535 Circuit Evaluation Board (EVAL-CN0561-FMCZ)
  • System Demonstration Platform Board (EVAL-SDP-CH1Z)
  • AP2700 Signal Source or Equivalent should we mention the vibration sensor?

Hardware Connection

To begin using the evaluation board, take the following steps:

Add in any other details you want as well.

«ADD in a PICTURE» of the circuit block diagram, hardware image, or functional diagram. Please be sure to make the proper directory for images and other files related to this CN. If you need help doing so, please look online at Doku Wiki tutorials or ask someone who has done it before.

Connectors and Jumper Configurations

Add any and all connectors and options that customers can talk to or configure. Explain pinouts, provide part numbers for sensors you used, any third party equipment you connected so customers can replicate the setup which you tested & verified on.

Chip Select

Use an image here or a table with the reference designator and options

The chip select is configurable to be routed to 3 general purpose I/O pins of the board, digital pins 8, 9 and 10, allowing multiple boards using SPI communications protocol to be stacked up.

Sensor Connector #1 (P?)

Any 3-wire moisture sensor with a supply voltage of 3.3V or 5V, with an output voltage of 0-3V can be used with the EVAL-CN0398-ARDZ. The Vegetronix VH400 and Decagon Devices EC-5 moisture sensor was used during testing.

Sensor Specific Jumper Selection

This could be a sensor specific requirement. (Optional) Point being, don't leave out details on the hardware config and capability.

If the moisture sensor requires a 5V power supply place the jumper as seen on the image below

VH400 moisture sensor was evaluated in this configuration

If the moisture sensor requires a 3.3V power supply, place the jumper as seen on the image below

EC5 moisture sensor was evaluated in this configuration. The two jumper selection P8 and P10 should always change together

Sensor Connector #2 (P?)

Sensor Specific Input Configuration

3-wire PT100 RTD was used during evaluation, Excitation currents are set to 500uA. For the 4-wire configuration, Do not connect the RSENSE(+) wire.

Sensor Connector #3 (P?)

The EVAL-CN0398-ARDZ shield board comes with a BNC connector J1 for pH sensors as shown on the image below

The output of the pH sensor is bipolar and gives a maximum signal of ±414 mV at 25°C. The AD7124-8 operates from a single power supply therefore the pH probe should be biased above ground so that it is within the acceptable common-mode range of the AD7124-8. One of the integrated features of the AD7124-8 is its internal bias voltage generator that sets the common mode voltage of a channel to AVDD/2, or 1.65 V. This bias voltage from the ADC is applied to the pH probe shield and sets the output of the sensor 1.65 V ±414 mV at 25°C. For information about pH calibration, visit CN0398 Circuit Note.

Atlas Scientific pH probe was used during evaluation

LED Indicators

Does your board have LEDs? If yes what do they indicate? Power good? Data transfer? Faults? Tell your customer what they mean.

Switches and Buttons

Are there any switches or reset buttons, describe them.

Host processor Connector

FMC, Arduino, RPI, PMOD, SDP, Other

Other Analog/Digital Input/output Configuration

Your board may be more or less complicated, so just ensure that you talked about everything that a customer would want to know about and change.

Power Supply Considerations and Configuration (P3)

Terminal block P3 is the power supply input (input range:+9.5V to +36V DC). The EARTH terminal can be connected to an external earth connection, to the GND terminal or left floating if an external earth connection is not used.

Main power setup P3 terminals description

Schematic, PCB Layout, Bill of Materials

EVAL-CN0xxx-ARDZ Design & Integration Files

  • Schematics
  • PCB Layout
  • Bill of Materials
  • Allegro Project
  • <ADD other things specific to your project if desired>

Reference Demos & Software

resources/eval/user-guides/circuits-from-the-lab/cn0561.txt · Last modified: 18 Jan 2022 07:53 by vikas jeevannavar