Booting via SSD

Auvidea ships some development systems with a pre-configured SSD. This contains a bootable partition which can be larger than the storage capacity of the integrated eMMC flash memory on the compute module. This allows the installation of all tools and supporting applications in the boot partition:

• Linux

• Jetpack 4.x

• A large selection of SDKs like listed in appendix D (CUDA, VisionWorks, DeepStream and more)

• 3rd party applications and demo programs

• Sample video files to immediately try out the AI models

The SSD typically included is a 128 GB NVMe SSD by Transcend (model: TS128GMTE110S). It offers very high performance as it connects to the compute module with 4 PCIe Gen2 lanes (5 Gbit/s).

Installation:

Full length 2280 SSDs must be inserted carefully as the SO-DIMM socket of the compute module blocks tilting. Please slide the SSD in carefully from the side and ensure, that it is seated properly before applying power. Secure the SSD with a M3 (nylon) screw. Metal screws must be treated with care, so that the head of the screw is small enough that it does not touch any traces or components on the compute module.

High power SSDs may require extra cooling by installing a thermal pad between the SSD and the compute module or the carrier board.

Crypto chip

The crypto chip has been added to support software licensing and copy protection. Please check the data sheet of the manufacturer for details.

Model: ATSHA204A-MAHCZ-T

MCU chip

An MCU for additional power management and watchdog functions is optional. It is standard on some extended versions of the JNX30. The MCU can provide features like:

Powering control (up and down) of the compute module

Brown out protection

Clean boot after short power interruptions

Watchdog support: it can connect to the debug console of the compute module

Remote power cycle via LTE (requires LTE module with UART interface – like SIMCOM modules)

Pinout description top side

Please note that the software GPIO number differs from the socket pin number. This software GPIO number must be computed with a special formula and differs between the various compute modules. Please see appendix B for details.

J1 – Power input jack

Nexus-5876J

Reverse voltage protection also functions as back power protection if PoE injection is used with J32 pin 2. If a voltage higher than 20V is applied, the TRS diode will heat up and get damaged.

J3 – Ethernet (GbE)

Standard RJ45 pinout with PoE capable magnetics class 3 and 4 (PD or PSE). Connected to the Ethernet controller on the compute module. PoE-PD and PoE-PSE are supported with the corresponding variants of the JNX30. Also, there is the new JNX30 PDiso (38481) with isolated PoE-PD.

J4 – M.2 PCIEx4 NVMe SSDs

Please note that only NVMe SSDs are supported. SATA SSDs are not supported. We recommend the 128 GB Transcend SSDs (TS128GMTE110S). This SSD is standard in some Auvidea dev kit offerings.

J5 – CSI-2 CD

22 pin 0.5 mm pitch FPC connector

Please note that on the JNX30 each camera connector uses its own I2C bus. This setup is different from the NVIDIA dev kit. If you like to use CSI-2 cameras, please install the Auvidea BSP (firmware).

This CSI-2 connector has the same 22 pin pinout as the 22-pin connector on the Raspberry Pi Zero and Raspberry Pi compute module dev kit board. With adapter cable, it may connect to Raspberry Pi camera 2.1 and Vision Component camera modules. Alvium cameras require the Alvium adapter.

Pin 6: by default, the device tree puts a PWM signal on pin 206 (LCD_BL_PWM - GPIO_07). For most cameras (like Raspberry Pi camera with iMX219 sensor) this needs to be changed to a constant low output to send a high to the camera for power enable. This is part of the device tree changes.

Some Vision Component camera modules use this pin to synchronize multiple cameras. The pin 5s of all CSI-2 connectors are OR red together and drive the CAM LED output.

J6 Display port

J7 – Power out

SM10B-GHS-TB

J8 – USB 2.0

JST-GH 1.25 mm

Internal USB 2.0 JST-GH connector to connect to internal USB 2.0 add-on modules (like U100, U110, U120, …).

J9 – HDMI

Standard pinout

CEC is not supported (pin 13 of HDMI connector)

Power pin 18 is current limited by PTC fuse (5V 50mA)

J10 – CSI-2 AB

22 pin 0.5 mm pitch FPC connector

See further details in the J5 description.

J11 – USB 3.0 – 3.1

USB 3.0 Type A standard pinout

In Rev 1: power control is always on (5V 1A)

In Rev 2 and up: Controllable with GPIO_03 (socket pin 126) power on[0]/off[1], default off[1], 5V 1A

See Appendix B for documentation on how to configure and use GPIOs.

J12 – Micro USB

Standard pinout

OTG support (to flash the compute module)

See Appendix B for documentation on how to configure and use GPIOs.

J13 – FAN

Pico blade 1.5 mm

J14 – UART connector

JST-GH 1.25 mm

Unidirectional directional 1.8V to 3.3V level shifters and 10 Ohm series resistance (plus ESD protection).

J32 – CAM LED

SM04B-GHS-TB

CAM_LED: open drain output to drive cathode of camera LED.

Controlled by 3 signals which are OR red together:

J5 pin 5 (CSI CD camera)

J10 pin 5 (CSI AB camera)

Compute module GPIO_12: (socket pin 218) 0: LED off, 1: LED on, float: LED on

CAM_LED flash signal can be used to control external camera LED. When using an external LED, please limit current with an external resistor. Connect cathode to CAM_LED pin and anode to 3.3V to 12V power. Maximum current: 2A.

J34 - Power input jack

MOLEX-436500216

J36 – FAN

Pico blade 1.5 mm

P11 - PoE connector

This connects to the 4 center pins of the Ethernet magnetics on the cable side to extract or inject PoE power. This connector may be used for PoE addon solutions.

U1 Crypto chip

Model: ATSHA204A

Integrated for software protection and licensing.

Datasheet Link:

LED - Eth

Shows Ethernet activity on Socket pin 194 – on[0]/off[1], default: off

At own risk, resistor can be moved to control Eth-LED via socket pin 188 (link LED)

LED – Over current

Placed between J1 (Power connector) and J3 (Ethernet).

Shows over current condition of integrated 5V 8A power supply. If 8A is exceeded, the power output is disabled, and the LED is activated to red. To reset this over current condition, power input must be cycled.

The integrated 5V power controller supplies power to the compute module, the USB ports and the 3.3V power controller for the M.2 socket.

LED – PWR

Controlled by GPIO_PA6 (socket pin 178): on[1]/off[0], default: off[0].

LED – RGB

Pinout description bottom side

J15 – Super Cap UPS

UMPT-05-01.5-T-VT-SM-WT-K

J16 – Power On

Press to power on the system

J17 – Buttons

SM06B-GHS-TB

J18 – Force Recovery

Press to bring system in to force recovery mode during power up

J19 – CSI-E

22 pin 0.5 mm pitch FPC connector

J20 – Reset Button

Press to reset the compute module.

J21 – CSI-F

22 pin 0.5 mm pitch FPC connector

J22 – SPI

SM10B-GHS-TB

J23 – USB0

Standard pinout USB2.0

J25 – UART0

SM06B-GHS-TB

J26 – I2S0

SM06B-GHS-TB

J27 – I2C2

SM04B-GHS-TB

J28 – I2S1

SM06B-GHS-TB

J29 – I2C3

SM04B-GHS-TB

J30 – WPS

SM02B-GHS-TB

J33 – PCIe x1

FH55-22S-0.5SH

J35 – CAN

SM04B-GHS-TB

Micro SD

Standard pinout

Product SKU

Document versions and changes

Product revisions and changes

JNX30 series carrier boards

Carrier board pictures

Technical specifications

Power consumption

Design and manufacturing

Flexible design and manufacturing

designed and manufactured in Germany

in-house fully automated production line with 3D AOI

special configuration possible with minimum purchase of 25 pcs (display port, M.2, PoE, 48V power in, super cap option, 2 RPi camera module connectors, SPI, I2C, switches, etc.)

design services: you architect your custom carrier board and Auvidea designs and produces it, please ask for a quote.