3. A Tour of neoECU AVB/TSN Hardware

Before learning how to configure and set up the device, let’s examine the device from all sides to understand all of its interfaces and status indicators.

3.1. Label and Status Indicators

_images/nEAT-Label-with-refs.png

1

Red Button

(Activates Red Labels)

Solid Blue: Red LED labels apply

Inactive: Unpowered, booting, or White Button is active

2

AE1-6 (100BASE-T1)

Solid Blue: Link Active

Inactive: No Link

3

Text Balloon

Solid Blue: Talker configuration

Inactive: Listener Configuration

4

Clacker

Solid Blue: Configured as video endpoint

Inactive: Not configured as video endpoint

5

GM Indicator

Red: Standard Profile / No AS-Capable Device Connected

Solid Blue: Grand Master

Flashing Blue: Clock Slave

6

HDMI

Solid Blue: Configured for HDMI output

Inactive: Currently an invalid state

7

Stream Status

Solid Blue: Stream Active

Inactive: No Stream Active

8

Device Error

Solid Red: Internal Software Fault Detected

Inactive: No faults detected

9

White Button

Activates Red Labels

Toggles status screen on HDMI

Solid Blue: White LED labels apply

Inactive: Unpowered, booting, or Red Button is active

3.2. Connector Interfaces

3.2.1. Ethernet / Audio Endpanel

_images/nEAT-Ethernet-endpanel-with-labels.png

DC In

This device is shipped with a 12V DC power supply which mates with this connector. DC supplies with a compatible connector can be used provided they supply a voltage in the range 9-40 Volts with a current of 1A or greater.

Audio Ports

If enabled, OUT1-4 provide an unamplified signal of the audio being streamed for use with headphones or external amplifier. This audio is present for both talker and listener endpoint configurations.

Audio Port

Audio Channel

Notes

Out1

1/2

2-Channel Audio from Video Stream

Out2

3/4

Out3

5/6

Out4

7/8

Channel 8 is the “.1” if the stream is Dolby 7.1

IN1

Can be configured as source for audio talker stream

MIC

Not used

Note

Stream 0 is the only stream associated with these audio ports. Additional audio streams can be connected simultaneously but this device is not capable of decoding and playing the audio.

Ethernet Ports

The following diagram helps visualize the different modes of operation that are configurable in the neoVI Explorer configuration utility. It also shows the physical port assignments on the 88Q5050 which must be known to configure the switch properly for your network.

_images/PHY-Config-and-Physical-Port-Assignments-2.png

  • The AVB Endpoint PHY is selectable between AE1 (100BASE-T1) and P1 (1000BASE-T) |

  • The 5x 88Q5050 100BASE-T1 Ports are connected to AE2-6:

  • The 1x 88Q5050 1000BASE-T Port is connected to P2

3.2.2. USB / HDMI / CAN Endpanel

_images/nEAT-interface-endpanel-with-labels.png

USB Host

This port can be configured to be the source of a video stream using a Linux compatible web cam.

USB Device

This port is used to connect to a PC for configuration or to utilize the CAN/LIN interfaces.

Mini-USB

This interface is not used.

Micro SDCard Slots

The firmware and media storage resides on micro SDCards in these slots. The data on this media is not intended to be accessed or updated with anything other than Intrepid software. Not using Intrepid software with this media may render the device inoperable and void the warranty of the device.

Micro-HDMI

his interface can be connected to an display to the video being streamed by a talker or received by a listener.

DB26

Reference pin assignments in the following section.

3.2.3. Connector Information

DB26 (Power/HSCAN)

Pin

Signal

4

HSCAN 1 L

6

HSCAN 2 L

10

GND

14

HSCAN 1 H

16

HSCAN 2 H

19

VBATT

100BASE-T1 Connections (AE1-6)

_images/100-BASE-T1-Connector2.png

Ports

100BASE-T1_P

100BASE-T1_N

AE2 / AE4 / AE6

Pin 8

Pin 7

AE1 / AE3 / AE5

Pin 4

Pin 3

3.2.4. AVB Endpoint Status Screens

When the micro HDMI port is connected to a display, a video overlay displaying endpoint status information can be enabled by double pressing the white switch membrane on the top label of the device.

_images/StatusScreen.png

Absence of IP Address

Note that AVB/TSN is a set of Layer 2 protocols, therefore an IP Address is not necessary, and may not be present.

Stream Status lists all streams which have been enabled in the configuration, their format, and connection status.

Helpful Debug Information

  • Anything “Stopped” suggests a problem with the device’s software or device configuration

  • If gPTP port role status is “disabled”, it is waiting to be connected to an asCapable device