ANALOG DEVICES DEMO-ADIN11002Z Evaluation Board User Guide

ANALOG DEVICES DEMO-ADIN11002Z Evaluation Board

Product Information

Specifications

• Model: DEMO-ADIN1100D2Z
• Media Converter Type: 10BASE-T to 10BASE-T1L
• Features: SPoE PSE controller, IEEE 802.3cg compatibility, APL device power source, USB COM port diagnostics
• Components: ADIN1100 and ADIN1200 Ethernet PHYs, LTC4296-1 PSE Controller

Product Usage Instructions

The kit includes the DEMO-ADIN1100D2Z media converter board.

• The 10BASE-T1L data-only device, SPoE PD device, or APL-powered device
• 10BASE-T1L compatible single pair cable (1.5 mm2 maximum/AWG 16)
• Host device with RJ45 Ethernet port supporting 10BASE-T full duplex
• DC power supply with output voltage and current suitable for power class
• Optional: Host with USB interface for management and monitoring
• FTDI USB virtual COM port driver for the selected host
• Serial COM port terminal software
• The DEMO-ADIN1100D2Z connects a standard 10BASE-T RJ45 Ethernet port to a 10BASE-T1L device.
• It includes a PSE controller that can power the connected device and is configurable for various power classes.
• The board requires an external DC power supply and can be managed via a USB connection to a host PC.
• The board can be used autonomously or connected to a PC for monitoring and diagnostics.

FAQ

• Q: Can the DEMO-ADIN1100D2Z be powered via USB?
• A: Yes, for certain power classes like Class 10, APL A, and APL C, the board can also be powered from a USB host.
• Q: How can I check the status of the device?
• A: The status can be checked using a set of switches, jumpers, and LEDs on the board or by connecting it via USB to a host PC for detailed diagnostics.

10BASE-T to 10BASE-T1L Media Converter Including SPoE/APL, Featuring ADIN1100 and ADIN1200 Ethernet PHYs and LTC4296-1 PSE Controller

FEATURES

• 10BASE-T to 10BASE-T1L media converter
• SPoE PSE controller compatible with IEEE 802.3cg
• Power source for APL devices
• System-level diagnostics over USB COM port

EVALUATION KIT CONTENTS

• DEMO-ADIN1100D2Z board
• 2 × plugin screw terminal connectors
• Ethernet cable with RJ45 connectors (1 m)
• USB A to USB C cable (1 m)

EQUIPMENT NEEDED

• 10BASE-T1L data-only device, SPoE PD device or APL-powered device
• 10BASE-T1L compatible, single pair cable (1.5 mm2 maximum/ AWG 16 to fit connector)
• Host device with standard RJ45 Ethernet port capable of 10BASE-T full duplex
• DC power supply with output voltage and current relevant to power class
• Optional: host with USB interface for management, monitoring, and diagnostics (also power supply for some classes)

SOFTWARE (OPTIONAL)

• FTDI USB virtual COM port driver for the selected host
• Serial COM port terminal software

GENERAL DESCRIPTION

• The DEMO-ADIN1100D2Z is a media converter board that provides a connection between a standard 10BASE-T RJ45 Ethernet port and a 10BASE-T1L device.
• The DEMO-ADIN1100D2Z includes a power sourcing equipment (PSE) controller and it can power the connected 10BASE-T1L or advanced physical layer (APL) device. The PSE controller is configurable for power over data line (PoDL)/single pair power over
• Ethernet (SPoE) power Class 10, Class 11, Class 12, Class 13, Class 14, and Class 15, and APL power Class A, Class C, and Class 3.
• The board requires an external DC power supply with output voltage and maximum output current relevant to the selected power class. For a subset of power classes (Class 10, APL A, and APL C), the board can also be powered from a USB host.
• The board requires a minor modification and external power coupling inductors when used for the highest power Class 15 and APL 3.
• The DEMO-ADIN1100D2Z can be used as an autonomous device, configurable by a set of switches and jumpers, indicating its status on LEDs.
• The DEMO-ADIN1100D2Z can also be connected via USB to a host PC. The 10BASE-T1L link status, power status, and diagnostics are then accessible using a simple set of text commands and messages exchanged over the USB COM port interface using serial terminal software on a PC.

OVERVIEW

FIRMWARE MODES OF OPERATION

Table 1. Firmware Modes of Operation1

1. N/A means not applicable.
2. The board requires a power supply with minimum voltage and maximum power slightly higher than the relevant power class.
3. Most USB 3.0 hosts, but only some USB 2.0 hosts can supply enough power for the device Class 10 and the board itself.
4. For full use of SPoE Class 15 and APL Class 3, follow the Board Modification for SPoE Class 15 and APL Class 3 section.
5. The 10BASE-T1L normal auto-negotiation is disabled and the PHY is set to the forced leader or follower mode depending on the position of Switch S201 during reset. The mode must be used only for debugging and tests. Do not use it for normal operation.
6. Mode 10 and Mode 13 are very specific and used during board production tests. Do not use them for normal operation.
7. The mode is included for compatibility with (very) old APL demos, and it may be removed in future firmware versions.
8. The mode is meant for system-level debugging for experts with deep knowledge. The power class and associated power supply requirements depend on the previously operated mode. When the microcontroller is reset with Mode 15 selected, or placed to Mode 15 via a COM port command, the firmware will not perform any configuration or reconfiguration of the Ethernet PHYs and SPoE controller. The Ethernet PHYs are reset after power-up or by pressing the board hardware reset button, S401. However, the SPoE controller does not have a hardware reset pin. Therefore, the SPoE controller stays in the latest state of operation, but the power delivery it is no longer supervised by the microcontroller firmware. As a result, the connected cable and device may no longer be protected against all system fault conditions.

BOARD CONTROL COMPONENTS
Table 2. Board Control Components
Reference Name Description

J1| PWR 3V3| The jumper for local 3.3 V power. Keep inserted for normal operation.
---|---|---
J101|  | The jumper for the 10BASE-T1L cable shield is to connect to the earth ground directly or via a 4700 pF capacitor.
J601| USB PWR| The jumper for enabling board power from the USB port. Note that this is possible only for some power classes. For details refer to Table

1. J651| PWR 12V (APL)| The jumper selects the voltage generated from the USB port. Insert for APL Class A and Class C, remove for SPoE Class 10.
   S201| ADIN1100 HW CFG Switch (TX 1V)| On. 10BASE-T1L operates with a 1 V signal level. Use this option for APL Class A and Class C. Off. 10BASE-T1L can operate with a 2.4 V signal level.

The switch must be set to the desired position before power-up or reset. The switch is sampled only when the ADIN1100 chip is

coming out of reset.

S201| ADIN1100 HW CFG Switch (PREF.MSTR)| On. This site prefers to be a leader on the 10BASE-T1L link. Off. This site prefers to be a follower on the 10BASE- T1L link.

The switch must be set to the desired position before power-up or reset. The switch is sampled only when the ADIN1100 chip is coming out of reset.

S401| RESET| The push button for board hardware reset.
S402| BOOT| The push button for entering microcontroller boot load mode is used for firmware updates.
S403| μC CFG| The switch for the microcontroller firmware mode of operation refers to Table 1.

The switch must be set to the desired combination before power-up or reset. The switch is sampled by firmware only once, a short

time after the microcontroller reset.

Table 3. Board Indicator Components
Reference Name Color Description

LED1| PWR 3V3| Green| Board local 3.3 V power. Must turn on when board powered from any source.
---|---|---|---
LED200| Link| Green| 10BASE-T1L Ethernet link up.
LED201| Activity| Yellow| 10BASE-T1L Ethernet link (data) activity.
LED500| SPoE| Blue| Power is present on the cable connector.
P301| Ethernet| Green| 10BASE-T Ethernet link up (LED integrated into the RJ45 connector).
P301| Ethernet| Yellow| 10BASE-T Ethernet link (data) activity (LED integrated into the RJ45 connector).
LED400| μC 0| Blue| Special status indicator, presently used only in board production test.
LED401| μC 1| Yellow| Heartbeat. Yellow LED blinking indicates that the microcontroller firmware is operating.
LED402| μC 2| Red| Error. The red LED turned on indicates an error detected by the firmware. Messages with more error details can be observed via the USB COM port if the board is connected to a host via USB.
LED403| μC 3| Green| Correct operation. The green LED turned on indicates that both the 10BASE-T1L and 10BASE-T Ethernet links are up in media converter modes.

CONFIGURATIONS

CONFIGURATION FOR SPOE CLASS 10
Set Switch S403 for firmware operation Mode 0. Set Switch S201 for the desired 10BASE-T1L link operation. When supplying the board from the USB port, insert Jumper J650 and remove Jumper J651. When supplying the board from another power supply, Jumper J650 can be removed to make sure the board power does not come from the USB port. (The USB COM port still works for monitoring and diagnostic with Jumper J650 removed.) Connect the P301 RJ45 connector to an Ethernet switch or a host such as a PC, industrial or building controller, or any other device with an Ethernet port capable of auto-negotiating 10 Mb full duplex Ethernet link.

Connect the P101 screw terminal connector via a 10BASE-T1L cable to a powered device (PD) Class 10. The board can be supplied from the USB port, if the USB host can supply up to 0.5 A at 5 V.
The board can also be supplied from a (nominal 24 V) power supply source connected to the board P1 or P2 power supply connectors. For voltage range and required power details, refer to Table 1. Regardless of the power supply option, the USB port can be optionally used with COM port terminal software for management and diagnostics.

CONFIGURATION FOR SPOE CLASS 11
Set Switch S403 for firmware operation Mode 1, and for the rest of the setup, follow the Configuration for SPoE Class 12 section.
CONFIGURATION FOR SPOE CLASS 12
Set Switch S403 for firmware operation Mode 2. Set Switch S201 for the desired 10BASE-T1L link operation. Jumper J650 can be removed to make sure the board power does not come from the USB port. (The USB COM port still works for monitoring and diagnostic with Jumper J650 removed.) Connect the P301 RJ45 connector to an Ethernet switch or a host such as a PC, industrial or building controller, or any other device with an Ethernet port capable of auto- negotiating 10 Mb full duplex Ethernet link.

• Connect the P101 screw terminal connector via a 10BASE-T1L cable to a compatible PD Class 12, Class 11, or Class 10.
• Power supply the board from a (nominal 24 V) power supply source connected to the P1 or P2 board power supply connectors. For details, refer to Table 1.
• Optionally connect the USB port to a host PC and use the COM port terminal software for management and diagnostics.
  (Note that the board cannot be supplied via the USB port; the isolated DC/DC flyback converting power from the USB port on this board can only provide sufficient power for SPoE Class 10.)

CONFIGURATION FOR SPOE CLASS 13
Set Switch S403 for firmware operation Mode 3. Set Switch S201 for the desired 10BASE-T1L link operation. Jumper J650 can be removed to make sure the board power does not come from the USB port. (The USB COM port still works for monitoring and diagnostic with Jumper J650 removed.)
Connect the P301 RJ45 connector to an Ethernet switch or a host such as a PC, industrial or building controller, or any other device with an Ethernet port capable of auto-negotiating 10 Mb full duplex Ethernet link.

• Connect P101 screw terminal connector via a 10BASE-T1L cable to a PD Class 13.
• Power supply the board from a (nominal 54 V) power supply source connected to the P1 or P2 board power supply connectors. For details, refer to Table 1.
• Optionally connect the USB port to a host PC and use the COM port terminal software for management and diagnostics.
  (Note that the board cannot be supplied via the USB port; the isolated DC/DC flyback converting power from the USB port on this board can only provide sufficient power for SPoE Class 10.)

CONFIGURATION FOR SPOE CLASS 14
Set Switch S403 for firmware operation Mode 4. For the rest of the setup, follow the Configuration for SPoE Class 13 section.

BOARD MODIFICATION FOR SPOE CLASS 15 AND APL CLASS 3

The default power coupling inductor and common-mode inductor on the board have a 900 mA maximum rated current. For the full use of SPoE Class 15 and APL Class 3 with the maximum current, the board needs a minor modification, and additional power coupling and common-mode inductors must be added to the board and used instead of the default inductors. See the following steps:

1. Disconnect the on-board default power coupling circuit.
   For this, remove the R115, R116, R117, and R118 resistors from the bottom of the board, as marked in the schematics snapshot in Figure 7 and photo in Figure 8.

2. Add and solder a set of headers to the J104, J105, and J106 positions on top of the board, as shown in Figure 9. Use standard 2.54 mm/0.1 in pitch headers, 4-pin single row for J104, 6-pin single row for J106, and 12-pin double row for position J105 (or 2 × 6-pin single row if that is what you have).
   Take care when assembling the headers to be perpendicular to the board. If you already have a module, you can insert the headers into matching connectors on the module and solder the entire assembly—this way the module perfectly fits the headers. You can unplug the module afterward.

3. Add a new coupling circuit suitable for the power class—power coupling inductor(s), common-mode inductor and/or transformer, and signal coupling capacitors. The details of the coupling circuit and selection of the components is beyond the scope of this document. One example of a suitable coupling circuit is the TDK module EVB-DLA-006.

CONFIGURATION FOR SPOE CLASS 15

• Perform modifications as described in the Board Modification for SPoE Class 15 and APL Class 3 section.
• Set Switch S403 for firmware operation Mode 5. Set Switch S201 for the desired 10BASE-T1L link operation. Jumper J650 can be removed to make sure the board power does not come from the USB port. (The USB COM port still works for monitoring and diagnostic with Jumper J650 removed.)
• Connect the P301 RJ45 connector to an Ethernet switch or a host such as a PC, industrial or building controller, or any other device with an Ethernet port capable of auto-negotiating 10 Mb full duplex Ethernet link.
• Connect the P101 screw terminal connector via a 10BASE-T1L cable to a compatible PD Class 15, Class 14, or Class 13.
• Power supply the board from a (nominal 54 V) power supply source connected to the P1 or P2 board power supply connectors. For details, refer to Table 1.
• Optionally connect the USB port to a host PC and use the COM port terminal software for management and diagnostics.

CONFIGURATION FOR APL CLASS A

• Set Switch S403 for firmware operation Mode 6. Set Switch S201 (TX 1V) to the on position for a 1 V amplitude required on APL spurs. Set Switch S201 (PREF.MSTR) to the on position, typical for the APL power-supplying device. When supplying the board from the USB port, insert Jumper J650 and Jumper J651. When supplying the board from another power supply, Jumper J650 can be removed to make sure the board power does not come from the USB port. (The USB COM port still works for monitoring and diagnostic with the J650 jumper removed.)
• Connect the P301 RJ45 connector to an Ethernet switch or a host such as a PC, industrial or building controller, or any other device with an Ethernet port capable of auto-negotiating 10 Mb full duplex Ethernet link.
• Connect the P101 screw terminal connector via an APL spur cable to an APL device Class A.
• On the power sourcing side of the APL spur cable, connect the shield to the earth ground via a capacitor by inserting the jumper to the J101 position labeled CAP. If earth ground is required in the demonstration setup, connect the system earth ground to the ground pin of Connector P1, or to one of the metal-plated mounting holes in the corners of the board.
• The board can be supplied from USB, if the USB host can supply up to 0.25 A at 5 V.
• The board can also be supplied from a (nominal 12 V) power supply source connected to the P1 or P2 board power supply connectors.
• For details, refer to Table 1.
• Regardless of the power supply option, the USB port can be optionally used with COM port terminal software for management and diagnostics.

CONFIGURATION FOR APL CLASS C

• Set Switch S403 for firmware operation Mode 8. For all other settings and connections, see the Configuration for APL Class A section.

CONFIGURATION FOR APL CLASS 3

• Perform the modifications as described in the Board Modification for SPoE Class 15 and APL Class 3 section.
• Set Switch S403 for firmware operation Mode 9. Set Switch S201 (TX 1V) to off position for 2.4 V amplitude required on APL trunks.
• Set Switch S201 (PREF.MSTR) for the desired 10BASE-T1L link operation. Jumper J650 can be removed to make sure the board power does not come from the USB port. (The USB COM port still works for monitoring and diagnostic with Jumper J650 removed.) Connect the P301 RJ45 connector to an Ethernet switch or a host such as a PC, industrial or building controller, or any other device with an Ethernet port capable of auto-negotiating 10 Mb full duplex Ethernet link.
• Connect the P101 screw terminal connector via an APL trunk cable to an APL 3-compatible powered field switch.
• Power supply the board from a (nominal 48 V) power supply source connected to the P1 or P2 board power supply connectors. For details, refer to Table 1.
• Optionally connect the USB port to a host PC and use the COM port terminal software for management and diagnostics.

CONFIGURATION FOR MEDIA CONVERTER WITH NO POWER

• The board works as a media converter only, the SPoE/APL PSE is reset, and the power output to the port is disabled.
• Set Switch S403 for firmware operation Mode 12. Set Switch S201 for the desired 10BASE-T1L link operation.
• When the board is powered from the USB port, insert Jumper J650 and remove Jumper J651. Alternatively, when the board is powered from an external power supply and not through the USB port, Jumper J650 can be removed to make sure the board gets power from the intended source. (The USB COM port still works for monitoring and diagnostic with Jumper J650 removed.) Connect the P301 RJ45 connector to an Ethernet switch or a host such as a PC, industrial or building controller, or any other device with an Ethernet port capable of auto-negotiating 10 Mb full duplex Ethernet link.
• Connect the P101 screw terminal connector via a 10BASE-T1L cable to a device that does not require power over 10BASE-T1L.
• The board can be supplied from the USB port, if the USB host can supply up to 0.12 A at 5 V.
• The board can also be supplied from a power supply source with a DC voltage between 9 V to 58 V connected to the P1 or P2 board power supply connectors. For details, refer to Table 1.
• Regardless of the power supply option, the USB port can be optionally used with COM port terminal software for management and diagnostics.

DETAILED DESCRIPTION

MEDIA CONVERSION

• The DEMO-ADIN1100D2Z performs media conversion between a standard 10BASE-T RJ45 Ethernet port and a 10BASE-T1L Ethernet port. This is implemented as a back-to-back connection using the reduced gigabit media independent interface (RGMII) between the ADIN1100 (U201) and ADIN1200 (U301). The data—Ethernet frames—are passed directly from one PHY to the other PHY. There is no media access controller (MAC), no buffer, or speed conversion in the data path on the board.
• The ADIN1200 is configured by the board firmware, via the management data input/output (MDIO) interface. It is set to regenerate the incoming frame preambles. The ADIN1200 is also configured to advertise, through auto-negotiation, 10 Mb full duplex as the only capability on the RJ45 Ethernet port.
• When the DEMO-ADIN1100D2Z is connected to a 10BASE-T/ 100BASE-Tx/1000BASE-T port of another device, the devices agree through auto negotiation to link up at 10 Mb full duplex, to match exactly the speed and mode of the 10BASE-T1L link. Most of the common devices, such as PCs, USB to Ethernet adapters, Ethernet switches, or industrial controllers, have the Ethernet port set by default for auto-negotiation, and therefore the Ethernet link usually works correctly with the DEMO-ADIN1100D2Z.

SPOE PSE

• The DEMO-ADIN1100D2Z provides SPoE or APL power to a 10BASE-T1L or APL device over the same single pair cable as the data.
• The board firmware configures the LTC4296-1 PSE controller (U501) to the relevant mode of operation via a serial peripheral interface (SPI). The firmware checks the correct input power supply voltage using the LTC4296-1 on-chip A/D converter, and subsequently enables one of its 5 output channels to set the appropriate current limit level. See details in Table 1.
• The board includes an additional circuitry, controlled directly by the microcontroller general-purpose input/output (GPIO) pins, for serial communication classification protocol (SCCP), to communicate with the connected PD. The SCCP is used when the board is set to operate in one of the IEEE 802.3 defined power classes. The SCCP is not used when the board is set to operate in one of the APL power classes.
• The firmware state machine assists the PSE controller, but the LTC4296-1 autonomously performs the time critical operations such as ramping up the voltage during port power-up, short-circuit protection, or PD disconnection.
• The firmware periodically reads via SPI the power status from the LTC4296-1, including the measured port output voltage and output current. This information can be sent via the USB COM port if the board is connected to a PC.

MICROCONTROLLER

• The low-power Arm® Cortex-M4 MAX32670 microcontroller (U401) and the firmware that is programmed to it during board manufacturing provide all the control, diagnostics, and other functionalities described in this user guide.
• Note that the microcontroller is not in the data path for the Ethernet frames passing through the media converter. The firmware does not see or handle the Ethernet frames. Therefore, the firmware does not include any Ethernet stack.
• Future firmware updates can be programmed to the microcontroller via the USB COM port. Instructions on how to do it and the appropriate tools are provided together with the future updated code.

10BASE-T1L/APL CABLE CONNECTION
The 10BASE-T1L/APL cable connects via a pluggable screw terminal block to the P101 connector. The pluggable connector is from Phoenix Contact, part number 1803581, 3‑way, 3.81 mm pitch, for cable with conductors AWG 28 to AWG 16 (maximum 1.5 mm2).

10BASE-T/ETHERNET CONNECTION
The 10BASE-T cable with a standard 8-pin RJ45 Ethernet connector connects to the P301 connector.

USB COM PORT

• The DEMO-ADIN1100D2Z USB C connector can be connected to a PC or other host USB ports, using either a USB A/USB C cable (provided in the demo kit), or a USB C/USB C cable (presently not provided in the kit).
• The PC USB port needs to be Version 2.0 or higher for using the USB COM port management and diagnostics function. It is recommended to use USB 3.0 or higher when using the USB port as a power supply source for the board.
• The USB COM port on the board is utilizing the FT232 USB to universal asynchronous receiver transmitter (UART) converter. The USB port is galvanically isolated from the rest of the board by the iCoupler® ADuM321N in the UART signal path to the microcontroller.

POWER SUPPLY

• The board is supplied from an external power supply source connected via the pluggable screw terminal block to the P1 connector, or via a 2 mm/5.50 mm power barrel to the P2 connector. The required voltage and power depend on the board mode of operation.
• In some modes of operation, the board can also be supplied from a USB host. Refer to Table 1.
• If the the USB port is connected and the USB power to the board enabled by inserted Jumper J650, the power is converted from USB 5 V to a higher voltage needed for the relevant power class by the isolated flyback converter LT3001. The converter output voltage is set either to approximately 12 V for APL Class A and Class C by inserting Jumper J651, or to approximately 22 V by removing Jumper J651. Jumper J651 must be set appropriately for the relevant mode of operation.
• The output from the flyback converter and the external power source are connected via two diodes. If both power from the USB port and power from an external source are connected, then the source with a higher voltage supplies the board.
• When the board input power supply voltage is incorrect for the selected board mode of operation, the board firmware detects it, the red LED (μC 2) indicates the error, and the USB COM port receives an error message.
  The Ethernet PHYs, the microcontroller, and most of the other circuits on the board are supplied from 3.3 V output from the step-down switching buck regulator MAX17760.

GROUND CONNECTIONS

• The DEMO-ADIN1100D2Z board has an earth node. Although this node may or may not be electrically connected to the earth ground, in a real device, this node is typically connected to the device metal housing or chassis. This earth node can be connected as required in a wider demonstration system via the earth terminal of the power supply connector, P1, or via an exposed metal plating of three mounting holes in the corners of the DEMO-ADIN1100D2Z board.
• (The fourth hole does not have a metal plating, and has no earth connection.)
• The shield of the 10BASE-T1L/APL cable can be disconnected from this earth node, connected directly, or connected via a 4700 pF capacitor (C104). The required connection is selected by position of Jumper J101.
• The 10BASE-T earth connection and metal body of the RJ45 connector (P301) are connected directly to the earth node.
• The local circuit ground, including the (−) terminal of the external power supply is connected to the earth node via approximately 3000 pF of capacitance, for good electromagnetic compatibility (EMC) performance, and approximately 4.7 MΩ of resistance, for preventing buildup of charge on the capacitance.
• The USB connection has functional isolation from the rest of all other circuits, up to approximately 60 V. The USB ground is connected to the board earth node via approximately 1000 pF of capacitance and approximately 4.7 MΩ of resistance. In addition, the
• USB ground is connected to the local circuit ground via approximately 2000 pF of capacitance and approximately 4.7 MΩ of resistance.
• Note that the DEMO-ADIN1100D2Z has been designed only as a demo board. It has not been designed nor tested for electrical safety. Any equipment, device, wire, or cable connected to the DEMO-ADIN1100D2Z board must be already protected and safe to touch without danger of electric shock.

SOFTWARE

• The DEMO-ADIN1100D2Z can be used as a standalone board, with the firmware already programmed in the microcontroller flash memory. The firmware mode of operation can be set by the μC CFG Switch S403 (see Table 1), and other switches and jumpers (see Table 2). The basic status of the board is indicated by LEDs (see Table 3). There is no software needed for this standalone use case.
• The DEMO-ADIN1100D2Z can also be connected to a PC via a USB port. The Ethernet links and power status monitoring and some diagnostics are then available using a simple set of American Standard Code for Information Interchange (ASCII) text commands and messages exchanged over the USB COM port and a serial port terminal software.

DRIVER FOR USB COM PORT
The DEMO-ADIN1100D2Z uses the FTDI FT232 for the USB COM port connectivity.
Make sure that the appropriate virtual COM port driver is included or installed on the host platform before connecting the DEMOADIN1100D2Z to that host via a USB cable.
FTDI virtual COM port drivers are available from the FTDI website.
SERIAL COM PORT AND TERMINAL SETTINGS
When the DEMO-ADIN1100D2Z is connected to the host, it becomes available in the host system as a USB COM port, and it is assigned a COM port number. The number depends on the system settings, on the COM port devices previously connected and assigned in the system, and on the FTDI driver settings.
The DEMO-ADIN1100D2Z microcontroller firmware communicates over a standard UART interface, with the following settings:

• Speed = 115,200 baud rate
• One start bit
• Eight data bits
• No parity
• One stop bit

The protocol is based on ASCII text commands and messages.
Each message sent from the firmware to the host is finished by both and