The EVAL-ADIN1100EBZ is a flexible platform enabling quick evaluation of ADIN1100, robust, low power 10BASE-T1L PHY. It provides 10Mbit per second Single Pair Ethernet (SPE) connections with devices over 1.7km of cable. The evaluation board offers two modes of operation for maximum flexibility. Connected to a PC via USB port, the full set of ADIN1100 register settings and features such as link quality monitoring and diagnostics can be accessed with the ADIN1100 Graphical User Interface software. Alternatively, the board can operate in stand-alone mode where it is configured by setting hardware configuration links and switches. Onboard LEDs provide status indication. The ADIN1100 data (MII, RMII and RGMII) and management (MDIO) interfaces are accessible on header connectors for easy connection to an external host controller. A small prototyping area and test points are provided for experimentation with alternative cable connection topologies including isolation transformers and/or power coupling inductors. The platform can perform as a 10BASE T1L to 10BASE-T media converter. This enables connection to other devices – demos or a custom prototypes – with a 10BASE-T1L Ethernet port and conversion of the data to standard Ethernet accessible via the RJ45 connector.
Figure 1. EVAL-ADIN1100-EBZ – Simplified Block Diagram
The EVAL-ADIN1100EBZ can be powered by a power supply with output voltage between 5 to 32V DC connected via the plug-in screw-terminal connector P1, or via the P2 barrel connector plug. Alternatively, the board can be powered from a host via its USB port, or by a USB charger connected to the micro-USB connector P401. The power supply source can be selected by link on J1 “BOARD PWR SELECTION”. Inserting link in position “USB” enables the board to receive power from USB connector. Inserting link in position “PWR+EXT+” enables the board to receive power from connectors P1 and P2. If both J1 “BOARD PWR SELECTION” “USB and “PWR+EXT+” links are inserted, there is a “diode or” implemented on the input of J1, and the supply with a higher voltage will supply the board. The power from the source is converted by a step-down converter U501 LT8619EDD#PBF to 3.3V, and with link inserted in position J2 “PWR 3.3V”. the 3.3V rail supplies all circuits on the board. The presence of 3.3V power is indicated by green LED1 “POWER”. The board power consumption depends on the mode of operation, with the maximum of approximately 0.5W.
The 10BASE-T1L cable can be connected via pluggable screw-terminal block to connector P101. If more of the pluggable connectors are needed, for easy connecting / changing cables, additional connectors can be purchased from the vendor or distributors: Phoenix Contact, part number 1803581, “Pluggable Terminal Block, 3.81 mm, 3 Ways, 28AWG to 16AWG, 1.5 mm², Screw”.
The demo board has an “Earth node”. We call it “Earth node” here – though this node may or may not be electrically connected to Earth ground. In a real device this node would be typically connected to the device metal housing / chassis. This Earth node can be connected as required in a wider demo system via “Earth” terminal of the power supply connector P1, or via exposed metal plating of 3 mounting holes in the corners of the board. (The 4th hole does not have metal plating, and also no Earth connection.) The shield of the 10BASE-T1L cable can be disconnected from this Earth node, connected directly, or connected via 4700pF capacitor (C104). The required connection is selected by relevant link position of J101. The 10BASE-T Earth connection and metal body of the RJ45 connector (P5) are connected directly to the Earth node. The local circuit ground, the external power supply (except the “Earth” terminal P1), and the USB connector are connected to the Earth node via approx. 2000pF capacitance and approx. 4.7M resistance. (!) Note: The EVAL-ADIN1100EBZhas been designed only as an Evaluation board. It has NOT been designed, and it has NOT been tested for electrical safety. Any equipment, device, wire, or cable connected to this demo must be already protected and safe to touch without danger of electric shock.
Figure 2. EVAL-ADIN1100EBZ Quick Start Info
Figure 3. EVAL-ADIN1100EBZ Functional Block Diagram
Some of the EVAL-ADIN1100EBZ hardware configuration is determined by links (jumpers) and configuration switches on the board. The summary and the default configuration is outlined in tables Table 1 to Table 5.
Table 1. Board Link Configuration
|Link Ref.||Default Position||Link Function|
|J1||USB, EXT+||Board power supply source selection. Both can be inserted simultaneously.|
|J2||Inserted||Board 3.3V power supply rail|
|J3||Inserted||Board 1.8V power supply rail|
|J101||Earth ( )||SHIELD - Connect the shield of the cable to the Earth node either directly or via a capacitor.|
|J203||LDO||ADIN1100 1.1V power supply selection. LDO … using ADIN1100 on-chip internal 1.1V linear regulator. EXT … supplied from 1.1V output of the step-down regulator LTC3547.|
|J204||All 3.3V||ADIN1100 power supplies selection. If changing, keep the (ADIN1100) VDDIO, ADIN1200 VDDIO and uC PWR all at the same voltage level, 3.3V or 1.8V.|
|J301||Not inserted||ADIN1200 reset. Insert to keep ADIN1200 in hardware reset and release its digital signals.|
|J401||BRD||uC Reset. “BRD” … uC is reset by the “BOARD RESET” push button. “GND” … uC is held in reset|
|J402||3.3V||uC Power. Keep at the same level, 3.3V or 1.8V, as the (ADIN1100) VDDIO and the ADIN1200 VDDIO|
Table 2. uC Firmware Mode Configuration, S403, uC CFG
|Switch Position||Switch Name||Default Position||Description|
|1||CFG_0||OFF||Mode 15 media converter (default for shipping). All switches OFF|
Table 3. ADIN1100 Hardware Configuration, S201, HW CFG
|Switch Position||Switch Name||Default Position||Description|
|1||MEDIA_CNV||OFF||Media converter. (Only for RMII interface mode, not used on this board)|
|2||MACIF_SEL1||OFF||Mac Interface Select 1|
|3||SWPD_N||OFF||Software Power Down.|
|4||MACIF_SEL0||ON||Mac Interface Select 0|
|5||TX2P4_DIS||OFF||Transmit Amplitude 2.4V Disable. (Always turn this switch ON if the AVDDH=1.8V|
|6||MS_SEL||OFF||Master/Slave Select. (Used as preference for auto-negotiation)|
|7||PHYAD_0||OFF||PHY Address 0. Address for management interface (MDIO)|
|8||PHYAD_1||OFF||PHY Address 1. Address for management interface (MDIO)|
Table 4. Board LED indicators
|uC0||Green||LED400||In media converter mode: Media Converter working - both PHYs links up|
|uC1||Red||LED401||Error detected by firmware|
|uC2||Yellow||LED402||Short flash: Heartbeat. Long flash/most time on: Receiving UART commands|
|LED_0||Green||LED200||10BASE-T1L link up/activity|
|LED_1||Yellow||LED201||In firmware managed modes: 10BASE-T1L TX amplitude 2.4V|
|(RJ45)||Green||P5||10BASE-T link up|
|POWER||Green||LED1||Board 3.3V power supply is present|
The EVAL-ADIN1100EBZ can be used in various modes of operations implemented in the uC firmware. Up to 16 modes of operations can be selected by setting the 4 positions of the slide switch S402. The status of the switch is accepted (latched) after the board is powered up or reset. Therefore, to change the mode of operation, the board must be reset by pressing “RESET” button S400 or by applying power cycle after changing the position of the slide switch S501. The detailed description is in the relevant sections of this document.
Table 5. Firmware Modes of Operation, set by S403, uC CFG
|OFF||ON||ON||ON||8||ADIN1100 PHY Test Mode 3 (Idle)|
|OFF||ON||ON||OFF||9||ADIN1100 PHY Test Mode 2 (Droop)|
|OFF||ON||OFF||ON||10||ADIN1100 PHY Test Mode 1 (Jitter)|
|OFF||ON||OFF||OFF||11||ADIN1100 PHY Test TX disabled|
|OFF||OFF||ON||ON||12||ADIN1100 Frame Generator/Checker|
|OFF||OFF||ON||OFF||13||ADIN1100 MAC Remote Loopback|
|OFF||OFF||OFF||ON||14||GUI / Interactive Mode|
|OFF||OFF||OFF||OFF||15||Media Converter Mode (Default Configuration)|
1 Switch in ON position = signal logic 0 for uC (shorted to ground). Switch in OFF position = signal logic 1 (pulled up by a resistor)
The EVAL-ADIN1100EBZ can be used as stand-alone board, with
the firmware already programmed in the uC flash memory, the
mode of operation set by mode switch, and status indicated by
LEDs. There is no software needed for this stand-alone use case.
The demo can also be connected to a PC via USB port, the full set of ADIN1100 register settings and features such as link quality monitoring and diagnostics can be accessed with the ADIN1100 Graphical User Interface software, available from Analog Devices.
Alternatively, the ADIN1100 and ADIN1200 registers, 10BASE-T1L link status monitoring and some diagnostics can be accessed using a simple set of ASCII text commands and messages exchanged over the USB Com Port and a serial port terminal software.
The EVAL-ADIN1100EBZ uses FTDI FT232 for the USB Com
Please make sure that appropriate Virtual Com Port driver is included or installed on the host platform before connecting the EVAL-ADIN1100EBZ to that host via USB cable.
The drivers are available from FTDI, at the time of writing this document at https://ftdichip.com/drivers/vcp-drivers/.
When the EVAL-ADIN1100EBZ is connected to the host, it will
become available in the host system as a USB Com Port, and will be
assigned a com port number. The number will depend on the
system settings, on com port devices previously connected and
assigned in the system, and on the FTDI driver settings.
The EVAL-ADIN1100EBZ uC firmware communicates over a
standard UART interface, with settings:
Speed 115200 Bd., 1 Start Bit – 8 Data Bits – No Parity – 1 Stop Bit.
The protocol is based on ASCII text commands and messages.
Each message and command are finished by <newline>. Each
message sent from the firmware to the host is finished by both
<CR> and <LF> characters. For the commands received from
host the firmware expects the <newline> as character <CR> or
<LF> or both <CR> and <LF>.
(To be sure and clear:
<CR> .. “carriage return”, ASCII code 0x0D, 13dec,
<LF> .. “line feed”, ASCII code 0x0A, 10dec.)
The EVAL-ADIN1100EBZ firmware works with the common serial terminals. It has been tested on Windows platform with PuTTY, RealTerm, Termite and the old Hyperterminal.
(The examples here were captured using Compuphase Termite).
When the EVAL-ADIN1100EBZ is correctly connected, from
the uC firmware and UART, via the USB Com Port, to the
terminal software, the firmware sends after power or after
pressing the board RESET button S501 an initial welcome
ANALOG DEVICES 10BASE-T1L PHY Demo
© 2021 Analog Devices Inc. All rights reserved
Firmware ver.: 12 . 1 . 4784b935
Hardware type: EVAL-ADIN1100EBZ
Hardware ver.: A
Hardware UID : AVAS142049
uCCFG3-2-1-0 : OFF-OFF-OFF-ON (Mode 14)
Firmware Mode: GUI / Interactive mode
Type '<?><new line>' for a list of commands
The most important command is “<?><new line>.
On the host keyboard, press key “?” followed by key “Enter”, and the firmware will send a list of all commands implemented in this version:
List of Commands
* MDIO (Clause 22) write to Phy, all numbers in hex.
* MDIO (Clause 22) read from Phy, all numbers in hex.
* MDIO (Clause 45) write to Phy, all numbers in hex.
* MDIO (Clause 45) read from Phy, all numbers in hex.
* Phy (hardware) reset
* Phy status and link properties.
* Start reporting status.
* Stop reporting status.
* Clear / reset status counters.
* uC Software Reset.
* Mode change, overrides uC CFG until next Reset.
'mode <number>' <newLine>
* List implemented modes.
* Comment – string of up to 98 characters
* Show list of commands.
To see the status of the demo, use command “phystatus”, which
will read and show the latest status of the ADIN1200 10BASE-T
PHY and ADIN1100 10BASE-T1L PHY:
ADIN1200 Link is Up,
ADIN1100 Link is Up, Master, 2.4 V
MSE -37.2 dB Rx 0, Err 0
To see a continuous update, use commands “start”:
MSE -38.4 dB Rx 255, Err 0
MSE -38.6 dB Rx 256, Err 0
MSE -38.7 dB Rx 257, Err 0
MSE -38.4 dB Rx 257, Err 0
MSE -38.7 dB Rx 257, Err 0
The firmware will periodically, with period of approx. 1 second,
send an update. The update in the present firmware version
To stop the continuous update, use command “stop”. (Or reset the board.)
The uC (U401 ADuCM4050) is programmed before shipping
the demo board, and therefore there is no need to program it,
unless a new version of firmware is available, and you want to
update it on your board.
The present firmware version can be checked via USB Com Port and terminal software, it is displayed in the welcome message after board reset or in response to “info” command.
Firmware update is distributed as a compiled binary (.hex) file. The easiest way to program it to the uC is using the USB Com Port and CrossCore Serial Flash Programmer, available for free download from analog.com, presently:
Figure 4. CrossCore Serial Flash Programmer.
USB Com Port driver (same as for using the terminal software)
needs to be installed on the PC before connecting the board and
using the CrossCore Serial Flash Programmer - see chapter
“Driver for USB Com Port”.
When you have the driver and programmer software installed, and firmware update hex file ready, use the following steps:
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