Auvidea JN30 Product manual

VERSION 1.4 JN30 (38346-X)
!!! JN30
technical reference manual
Version 1.4
Preliminary
February 2020
Auvidea GmbH
Kellerberg 3
D-86920 Denklingen
Tel: [phone]
[email protected]
www.auvidea.com!
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 1

VERSION 1.4 JN30 (38346-X)
Copyright Notice
Trademarks
NVIDIA, the NVIDIA logo, CUDA, Jetson, Maxwell, Tegra, Nano and VisionWorks are registered trademarks and/
or trademarks of NVIDIA Corporation in the United States and!other countries. Other company and product
names may be trademarks of the respective companies with which they are associated.
© Auvidea GmbH 2020
All Rights Reserved
No part of this document or any of its contents may be reproduced, copied, modified or adapted, without the
prior written consent of the author, unless otherwise indicated for stand-alone materials.
You may share this document by any of the following means: this PDF file may be distributed freely, as long as
no changes or modifications to the document are made.
For any other mode of sharing, please contact the author at the email below. [email protected]
Commercial use and distribution of the contents of this document is not allowed without express and prior
written consent of Auvidea GmbH.
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 2

VERSION 1.4 JN30 (38346-X)
Overview
JN30 carrier board for the NVIDIA Nano
The JN30 has been designed slightly larger than the dev kit version but with the maximum performance and
full use of all the interfaces needed to serve your needs.
Tech nic a l det ail s
• carrier board for one NVIDIA® Nano™ compute module (dev kit or production version)
• PoE (PSE/PD) optional
• one USB 3.0 type A vertical
• RJ45 connector for 1000bT Ethernet (GbE)
•UART0(3.3VTTL)(6pin)-consoleaccess
•fanconnector(4pin)
•HDMIanddisplayportout
• M.2 key M 2280 NVME PCIe x4
• size: 81,7mm x 104,6mm (size of the PCB with all components)
• height: 21 mm (with NVIDIA® Nano™ compute module)
• mounting: 4 holes with 3.2mm each
•model:38346
Power
• power: 12 - 48V (depending on the version - more on page 05)
The diagram below shows how the ordering code is assembled.
Models:
The JN30A is designed for the dev kit version of the Nano compute module.
The JN30B is designed for the production version of the Nano compute module. The version is shipped as a
bare module. Auvidea can supply the mounting kit with spring and screws. Also a heat sink or a heat spreader.
The 2 versions of the Nano compute modules are not pin compatible and therefore not interchangeable.!
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 3

VERSION 1.4 JN30 (38346-X)
Features
The JN30B starting with rev 5 adds to extra 2 lanes CSI-2 connectors on the bottom side.
The supercap add-on module is still in design. It allows to power the JN30 and Nano for a few minutes to
supporters a graceful power down in case of a sudden power loss.
Auto flashing
Just connect a USB OTG cable from your host PC and power up the JN30/Nano. No need to press any switches.
The MCU will detect this condition and control the switches appropriately.
Add-on modules
- 38363: 4 port 100bT Ethernet with PoE PSE to connect to 4 network IP cameras
-38372: M.2 LTE and M.2 Wifi adapter
- 38385: USB 2.0 to 4x USB 2.0 hub
- 38391: dev kit camera module and 2x GbE (i210 - JST-GH)
- 38392: dev kit camera module, 1x GbE (i210 - JST-GH) and mini UPS controller (supercaps)!
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 4
Feature
JN30-LC
JN30-PD
JN30-PSE
JN30-PSE48
HDMI out
✓
✓
✓
✓
Display port out
-
✓
✓
✓
48V power in capable
-
✓
✓
✓
micro USB 2.0 OTG
✓
✓
✓
✓
USB 3.0 type A
✓
✓
✓
✓
10/100/1000 Ethernet (RJ45)
✓
✓
✓
✓
IMU MPU-9250 (optional 9 axis
sensor)
-
✓
✓
✓
PoE version
-
PoE PD (class 4;
up to 25.5W)
PoE PSE (up to
15W)
PoE PSE (up to
30W out)
Components on both sides
-
✓
✓
✓
M.2 slot (NVME PCIe x4)
-
✓
✓
✓
UART0 (3.3V TTL debug access)
1
1
1
1
CSI-2 (22 pin - 4 lanes)
2
2
2
2
CSI-2 (22 pin - 2 lanes)!
(starting rev 5 only)
-
✓
✓
✓
fan connector
✓
✓
✓
✓
power in (5.5/2.5mm)
6..12V
6 .. 48V
6 .. 48V
48V
UPS backup support !
(supercap add-on module)
-
✓
✓
✓

VERSION 1.4 JN30 (38346-X)
JN30
This new JN30 carrier board turns the Jetson Nano compute module into a super mini computer. The Nano
offers very high computational (quad core ARM Cortex-A57 with up to 1.43 GHz) and graphical (NVIDIA Maxwell
with 128 CUDA cores) processing performance in a tiny form factor.
The JN30 comes with three options for PoE:
•P D
• PSE
• PSE48
PD:
The JN30 is a powered device (PD). The JN30 receives its power via the Ethernet socket (RJ45) from an
Ethernet switch. The JN30-PD is designed to be a Class 4 device (PoE+). This provides the power budget for a
Nano at full power and USB3 peripherals connected (up to 25.5W; PoE+). Optionally it may be set for class 3.
Please contact us for details. Please note that there is no galvanic isolation for the PD power input. Potentially
this could cause issues if the JN30 is mounted in a metal case with connection to earth ground.
PSE:
A JN30 with PoE PSE (power sourcing equipment) (PSE) can power a connected PoE device such h as a network
IP camera. PSE is working with up to 12.95W (class 3). Please pay special attention to the temperature of the
onboard 12V-48V power supply. At high loads the 12V to 48V power supply may heat up. Extra cooling may be
required.
PSE48:
This version is very similar to the JN30 PSE version. The difference is that it does not have the on board 12V to
48V power supply. Instead it requires a 48V DC power adapter.
Advantages over PSE version:
+ less heat dissipation on the JN30 (no DC up converter)
+class 4 support
+lower cost
JN30-PoE config
PD
PSE
PSE48
Only 12V
-
-
-
Only 48V
-
-
✔
12V-48V
✔
✔
-
Class
Class 4
Class 3
Class 4
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 5

VERSION 1.4 JN30 (38346-X)
CSI
By default the CSI-2 connectors are configured for 3.3V power to power cameras such as the RPi camera 2.1
with imx219 sensor or B112 module.
You can find these beads on the picture below. If the beads L34 and/or L19 are populated, 3.3V is used for CSI.
If L32 and/or L17 populated, 5V is used for CSI.
You can find that option near the CSI connector. These components are specially marked with a „3" and a „5“.
3: 3.3V for using Raspberry Pi camera; B101/B102
5: 5V for using %V powered CSI-2 devices !
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 6

VERSION 1.4 JN30 (38346-X)
Pinout description
Note: all pin numbers of the Jetson Nano refer to the production version of the Nano module. The
dev kit version has a different pinout which is not listed below.
Power Out (J7)
This is a 10 pin JST-GH connector with 1.25 mm pitch. Please note that this is the pinout is relevant for
revisions 3.1 and better. 48V is derived from the DC power input. The PSE48 version only with a 48V DC
adapter will provide this. Pin 3 to 6 provide 10.6V power from the 10.6V onboard DC converter. Current: 1A
max per pin. Able to connect Auvidea add-on boards 38363, 38372, 38385, 38391 and 38392.
Note: for best efficiency the 12V rail is set to 10.6V.
USB 3.0 (J11)
This is single USB 3.0 type a (vertical) connector.
Pin
Function
Jetson Nano
GPIO
Description
1
Vdc
-
-
input voltage of the JN30 (max. 48V)
2
Vdc
-
-
input voltage of the JN30 (max. 48V)
3
12V
-
-
12V power out
4
12V
-
-
12V power out
5
12V
-
-
12V power out
6
12V
-
-
12V power out
7
GND
-
-
Ground
8
GND
-
-
Ground
9
GND
-
-
Ground
10
GND
-
-
Ground
Pin
Function
Jetson Nano
Description
1
5V
-
5V power controlled by USB2_EN_OC (A19) - max. 900 mA
2
USB1-D-
115
USB 2.0 data / USB1_D_N
3
USB1-D+
117
USB 2.0 data / USB1_D_P
4
GND
-
Ground
5
USB3_RX2-
161
USB 3.0 receive data / USBSS_RX_N
6
USB3_RX2+
163
USB 3.0 receive data / USBSS_RX_P
7
GND
-
Ground
8
USB3_TX2-
166
USB 3.0 transmit data / USBSS_TX_N
9
USB3_TX2+
168
USB 3.0 transmit data / USBSS_TX_P
10
GND
-
Ground
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 7

VERSION 1.4 JN30 (38346-X)
USB 2.0 (J12)
This is a standard micro USB 2.0 connector for firmware upgrades and for USB 2.0 devices like mouse and
keyboard. New revisions feature a parallel connected JST-GH connector on the bottom side.
CSI-AB (J10)
This is a 22 pin 4 lane CSI-2 connector with 0.5mm pitch (Wuerth 687122149022). To open the connector and to
release the cable just lift the brown lid upwards. This connector has the same pinout as the CSI-2 connector on
the Raspberry Pi compute module carrier board. The contacts are on the bottom.
Pin
Function
Jetson Nano
Description
1
5V
-
5V power controlled by USB0_EN_OC* (A17) - max. 500 mA
2
USB0-D-
109
USB 2.0 data / USB2_D_N
3
USB0-D+
111
USB 2.0 data / USB2_D_P
5
GND
-
Ground
Pin
Function
Jetson Nano
Description
1
3.3V / 5V
-
3.3V power supply; 5V optional
2
CAM_I2C_SDA
215
3.3V level (converted from 1.8V of the Nano)
3
CAM_I2C_SCL
213
3.3V level (converted from 1.8V of the Nano)
4
GND
-
Ground
5
CAM1_MCLK
122
CAM1_MCLK (LC: 1.8V, non LC: 3.3V)
6
CAM1_PWDN
120
CAM1_PWDN (LC: 1.8V, non LC: 3.3V)
7
GND
-
Ground
8
CSI-B_D1+
17
CSI1_D1_P
9
CSI-B_D1-
15
CSI1_D1_N
10
GND
-
Ground
11
CSI-B_D0+
5
CSI1_D0_P
12
CSI-B_D0-
3
CSI1_D0_N
13
GND
-
Ground
14
CSI-A_CLK+
12
CSI0_CLK_P
15
CSI-A_CLK-
10
CSI0_CLK_N
16
GND
-
Ground
17
CSI-A_D1+
18
CSI0_D1_P
18
CSI-A_D1-
16
CSI0_D1_N
19
GND
-
Ground
20
CSI-A_D0+
6
CSI0_D0_P
21
CSI-A_D0-
4
CSI0_D0_N
22
GND
-
Ground
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 8

VERSION 1.4 JN30 (38346-X)
CSI-CD (J5)
This is a 22 pin 4 lane CSI-2 connector with 0.5mm pitch (Wuerth 687122149022). To open the connector and to
release the cable just lift the brown lid upwards. This connector has the same pinout as the CSI-2 connector on
the Raspberry Pi compute module carrier board. The contacts are on the bottom.
Pin
Function
Jetson Nano
Description
1
3.3V/5V
-
3.3V power supply; 5V optional
2
CAM_I2C_SDA
215
3.3V level (converted from 1.8V of the Nano)
3
CAM_I2C_CLK
213
3.3V level (converted from 1.8V of the Nano)
4
GND
-
Ground
5
CAM0_MCLK
116
CAM0_MCLK (LC: 1.8V, non LC: 3.3V)
6
CAM0_PWDN
114
CAM0_PWDN (LC: 1.8V, non LC: 3.3V)
7
GND
-
Ground
8
CSI-D_D1+
66
CSI4_D3_P
9
CSI-D_D1-
64
CSI4_D3_N
10
GND
-
Ground
11
CSI-D_D0+
42
CSI4_D2_P
12
CSI-D_D0-
40
CSI4_D2_N
13
GND
-
Ground
14
CSI-C_CLK+
54
CSI4_CLK_P
15
CSI-C_CLK-
52
CSI4_CLK_N
16
GND
-
Ground
17
CSI-C_D1+
60
CSI4_D1_P
18
CSI-C_D1-
58
CSI4_D1_N
19
GND
-
Ground
20
CSI-C_D0+
48
CSI4_D0_P
21
CSI-C_D0-
46
CSI4_D0_N
22
GND
-
Ground
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 9

VERSION 1.4 JN30 (38346-X)
CSI-E (J19)
This is a 22 pin 1 lane CSI-2 connector with 0.5mm pitch (Wuerth 687122149022) on the bottom of the JN30. To
open the connector and to release the cable just lift the brown lid upwards. This connector has the same
pinout as the CSI-2 connector on the Raspberry Pi compute module carrier board. The contacts are on the
bottom.
Pin
Function
Jetson Nano
Description
1
3.3V/5V
-
3.3V power supply default (5V optional)
2
GEN2_I2C_SDA
187
3.3V level (converted from 1.8V of the Nano)
3
GEN2_I2C_SCL
185
3.3V level (converted from 1.8V of the Nano)
4
GND
-
Ground
5
CAM2_MCLK
116
CAM2_MCLK (LC: 1.8V, non LC: 3.3V)
6
CAM3_PWDN
118
3.3V level (GPIO_01 inverted)
7
GND
-
Ground
8
-
9
-
10
GND
-
Ground
11
-
12
-
13
GND
-
Ground
14
CSI-E_CLK+
30
CSI2_CLK_P
15
CSI-E_CLK-
28
CSI2_CLK_N
16
GND
-
Ground
17
CSI-E_D1+
36
CSI2_D1_P
18
CSI-E_D1-
34
CSI2_D1_N
19
GND
-
Ground
20
CSI-E_D0+
24
CSI2_D0_P
21
CSI-E_D0-
22
CSI2_D0_N
22
GND
-
Ground
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 10

VERSION 1.4 JN30 (38346-X)
CSI-F (J21)
This is a 22 pin 1 lane CSI-2 connector with 0.5mm pitch (Wuerth 687122149022) on the bottom of the JN30. To
open the connector and to release the cable just lift the brown lid upwards. This connector has the same
pinout as the CSI-2 connector on the Raspberry Pi compute module carrier board. The contacts are on the
bottom.
Ethernet (J1)
The JN30 features an on-board RJ45 connector for 10/100/1000BT Ethernet with 2 LEDs.
Pin
Function
Jetson Nano
Description
1
3.3V/5V
-
3.3V power supply; 5V optional
2
GEN3_I2C_SDA
232
3.3V level (converted from 1.8V of the Nano)
3
GEN3_I2C_SCL
234
3.3V level (converted from 1.8V of the Nano)
4
GND
-
Ground
5
CAM1_MCLK
122
CAM1_MCLK (LC: 1.8V, non LC: 3.3V)
6
CAM4_PWDN
118
3.3V level (GPIO_01 inverted)
7
GND
-
Ground
8
-
9
-
10
GND
-
Ground
11
-
12
-
13
GND
-
Ground
14
CSI-F_CLK+
29
CSI3_CAM_P
15
CSI-F_CLK-
27
CSI3_CAM_N
16
GND
-
Ground
17
CSI-F_D1+
35
CSI3_D1_P
18
CSI-F_D1-
33
CSI3_D1_N
19
GND
-
Ground
20
CSI-F_D0+
23
CSI3_D0_P
21
CSI-F_D0-
21
CSI3_D0_N
22
GND
-
Ground
LED
Function
Jetson Nano
Description
GBE0
GBE_LINK_ACT*
194
left LED
GBE1
GBE_LINK_100
188
right LED
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 11

VERSION 1.4 JN30 (38346-X)
HDMI (J9)
This is a 19 pin standard size HDMI connector.
UART 1/2 (J14)
This is a 6 pin JST-GH connector with 1.25 mm pitch. Please connect to USB TTL serial converter (3.3V TTL
level). Normally just connect TXD, RXD, and GND. Swap data lines. Default speed: 115200 bps.
UART1 is optionally tunnelled through the micro controller (MCU). Default: hardware bypass.
Pin
Function
Jetson Nano
Description
1
HDMI_TXD2+
77
HDMI data lane 2
2
GND
-
Ground
3
HDMI_TXD2-
75
HDMI data lane 2
4
HDMI_TXD1+
71
HDMI data lane 1
5
GND
-
Ground
6
HDMI_TXD1-
69
HDMI data lane 1
7
HDMI_TXD0+
65
HDMI data lane 0
8
GND
-
Ground
9
HDMI_TXD0-
65
HDMI data lane 0
10
HDMI_TXC+
83
HDMI clock
11
GND
-
Ground
12
HDMI_TXC-
81
HDMI clock
13
HDMI_CEC
94
14
RSVD
-
reserved pin
15
HDMI_DDC_SCL
100
DP1_AUX_CH
16
HDMI_DDC_SDA
98
DP1_AUX_CH*
17
GND
-
Ground
18
PWR
-
5V power (max. 500 mA)
19
HPD
96
inverted and connected to DP1_HPD
Pin
Function
Jetson Nano
GPIO
Description
1
5V
-
-
5V power output
2
UART1_TXD
103
UART 1 console port (3.3V TTL level): transmit data output
3
UART1_RXD
105
UART 1 console port (3.3V TTL level): receive data input
4
UART2_TXD
/SWCLK
236
UART 2 console port (3.3V TTL level): transmit data
output / SWCLK (to flash the MCU)
5
UART2_RXD
/ SWDIO
238
UART 2 console port (3.3V TTL level): receive data input /
SWDIO
6
GND
-
-
Ground
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 12

VERSION 1.4 JN30 (38346-X)
FAN (J13)
This is a 4 pin pico blade connector with 1.25 mm pitch.
SPI/I2C (J22)
This is a 10 pin JST-GH connector with 1.25 mm pitch. 1.8V level - there is no level shifter on JN30.
UART0 (J25)
This is a 6 pin JST-GH connector with 1.25 mm pitch.
Pin
Function
Jetson Nano
Description
1
GND
-
Ground
2
5V
-
5V power supply to the fan
3
FAN _ TA C H
208
tachometer from the fan (open drain input with 100k pull-up to 1.8V)
4
FAN _ P WM
230
PWM control to the fan (open drain output: controlled by FAN_PWM
and „disable fan“ with GPIO19 - F2)
Pin
Function
Jetson Nano
GPIO
Description
1
3.3V
-
-
3.3V power supply
2
1.8V
-
-
1.8V power supply
3
SPI2_SCK
106
SPI2_SCK (1.8V)
4
SPI2_MISO
108
SPI2_MISO (1.8V)
5
SPI2_MOSI
104
SPI2_MOSI (1.8V)
6
SPI2_CS0
110
SPI2_CS0 (1.8V)
7
SPI2_CS1
112
SPI2_CS1 (1.8V)
8
GEN1_I2C_SCL
185
3.3V
9
GEN_1_I2C_SDA
187
3.3V
10
GND
Ground
Pin
Function
Jetson Nano
GPIO
Description
1
5.0V
-
-
5.0V power supply
2
UART0_TXD
99
-
UART0_TXD 1.8V
3
UART0_RXD
101
-
UART0_RXD 1.8V
4
UART0_RTS
103
-
UART0_RTS 1.8V
5
UART0_CTS
105
-
UART0_CTS
6
GND
-
-
Ground
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 13

VERSION 1.4 JN30 (38346-X)
I2S0 (J26)
This is a 6 pin JST-GH connector with 1.25 mm pitch.
I2S1 (J28)
This is a 6 pin JST-GH connector with 1.25 mm pitch.
I2C (J29)
This is a 4 pin JST-GH connector with 1.25 mm pitch.
Buttons
There are 3 buttons on the bottom side of the JN30. These buttons are not populated with the LC version.
•Button 1 (J16) - Power on
•Button 2 (J18) - Force recovery
•Button 3 (J20) - Reset
M.2 type M 2280 (J15)
M.2 connector for NVMe cards.
Form factor: 2230, 2242, 2260 or 2280 (22 x 80 mm)
Interface: four PCIe lanes for top performance (no SATA support)
Recommended: Samsung EVO 960 ands 970 modules.
Pin
Function
Jetson Nano
GPIO
Description
1
1.8V
-
-
1.8V power supply
2
I2S0_SDIN
195
-
I2S0_DIN
3
I2S0_SDOUT
193
-
I2S0_DOUT
4
I2S0_LRCLK
197
-
I2DS0_FS
5
I2S0_CLK
199
-
I2S0_SCLK
6
GND
-
-
Ground
Pin
Function
Jetson Nano
GPIO
Description
1
1.8V
-
-
1.8V power supply
2
I2S1_SDIN
222
-
I2S1_DIN
3
I2S1_SDOUT
220
-
I2S1_DOUT
4
I2S1_LRCLK
224
-
I2DS1_FS
5
I2S1_CLK
226
-
I2S1_SCLK
6
GND
-
-
Ground
Pin
Function
Jetson Nano
GPIO
Description
1
3.3V
-
-
3.3V power supply
2
CAM_I2C_SCL
213
-
CAM_I2C_SCL
3
CAM_I2C_SDA
215
CAM_I2C_SDA
4
GND
Ground
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 14

VERSION 1.4 JN30 (38346-X)
MCU
The JN30 features an on-board micro controller (MCU: STM32F042F6P6) with 32 kByte Flash and 6kByte RAM. It
monitors the power input rail and resets the Nano, if it discovers a brown out condition (voltage drop). Also it
controls the UART1 bypass and the auto flashing.
MCU pin description
Pin types:
PP - push/pull output#
OD - open drain output#
Ain - analog input#
AF - alternate function
IO - Input/Output
The power supply to the MCU is supplied by a 3.3V LDO regulator which is always on. So the MCU is powered as
soon as power is applied to the power input on J1. This allows the MCU to manage whether power should be
applied to the carrier board.
The MCU tunnels the console UART interface to the Jetson Nano. Some instructions are intercepted by the MCU
and executed by it. These instructions are not forwarded to the compute module.
UART1 Bypass *
„1“ - UART0 Jetson debug interface is tunneled through MCU
MCU Pin
Name
Type
Function
Description
1
PB8/BOOT0
-
-
10k pull down
2
PF0
OD
POWER
1: inactive, 0: press power button
3
PF1
O
POWER
Power enable
4
NRST
-
-
hardware power on reset of MCU (RC circuit)
5
VddA
-
-
analog 3.3V supply (by always on LDO)
6
PA0
Ain0
V12_IN
measure input voltage (voltage divider: 100k up/10k
down)
7
PA1
OD
SYS_RST_IN
System reset; open drain 1.8V
8
PA2
AF
UART1_RX
UART 1 to Nano (debug console)
9
PA3
AF
UART1_TX
UART 1 to Nano
10
PA4
PP
LED
0: LED off, 1: LED on (default MCU heartbeat)
11
PA5
AIN5
CM_PWR_ON
Compute module power on; 5V to Nano
12
PA6
AIN6
V5_IN
measure micro USB rail (voltage divider: 10k up/10k
down)
13
PA7
IO
UART_BY
UART1 bypass *
14
PB1
Ain9
SHTDWN_REQ
Shutdown request
15
GND
-
-
Ground
16
VddA
-
-
digital 3.3V supply (by always on LDO)
17
PA9/PA11
AF
UART_TX
UART_TX to J14 connector (pin 2)
18
PA10/PA12
AF
UART_RX
UART_RX to J14 connector (pin 3)
19
PA13
-
SWDIO
SWD programming interface
20
PA14
-
SWCLK
SWD programming interface
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 15

VERSION 1.4 JN30 (38346-X)
„0“ - UART0 Hardware bypass around MCU (required if baud rate is not 115200)
MCU command set
mcu --adc read the 4 voltage rails (power in, 5V, 3.3V, and 1.8V)
mcu --reset reset TX1/TX2
mcu --poweron power on TX1/TX2
mcu --shutdown power off TX1/TX2
mcu --version display firmware version
mcu --help display list of command available
MCU firmware upgrade
The C source code for the MCU is available on request (Attolic TrueStudio project). Please contact us. The MCU
may be programmed with the ST/LINK programming adapter (SWCLK, SWDIO, GND). We recommend the use of
the STM32VLDISCOVERY discovery kit for STM32F100 Value line. It is available in the Auvidea online shop and at
digikey.com (497-10633-ND).
MCU firmware v1.1
This version of the MCU is limited to a UART baud rate of 38400 baud max. Please set the TX1/TX2 to 38400.
Please edit the file /boot/extlinux/extlinux.conf. Please replace 115200n8 by 38400n8.
TIMEOUT 30
DEFAULT primary
MENU TITLE p2371-2180 eMMC boot options
LABEL primary
MENU LABEL primary kernel
LINUX /boot/Image
INITRD /boot/initrd
FDT /boot/tegra210-jetson-auvidea-j90.dtb
APPEND fbcon=map:0 console=tty0 console=ttyS0,115200n8
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 16

VERSION 1.4 JN30 (38346-X)
Appendix A
TPS23861 POE PSE software control - POE controller power toggle
There are a multitude of I2C commands to control the TPS23861, the registers are described in the
documentation starting at page 45 (http://www.ti.com/lit/ds/symlink/tps23861.pdf)!
To simply toggle on and offthe power on a port, in this case port 1, the following command has to
be sent via I2C to put the port into manual mode, meaning the power has to be toggled manually
and will not change automatically:!
sudo i2cset -y 1 0x20 0x12 0x01!
I2cset writes to the I2C device. The „-y“ part prevents the write confirmation, the 1 specifies the I2C
bus, the „0x20“ is the device I2C address of the chip, the „0x12“ is the register address for the mode
configuration and the „0x01“ is the value, which in this case sets port 1 to manual mode.!
Next, to toggle the port on and offthere are two commands:!
sudo i2cset -y 1 0x20 0x19 0x01!
To turn on the port, and!
sudo i2cset -y 1 0x20 0x19 0x10!
To turn offthe port. You can read out the power status of all ports with the following command:!
sudo i2cget -y 1 0x20 0x10#
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 17

VERSION 1.4 JN30 (38346-X)
Appendix B
How to flash nano production module with Auvidea JN30B using the NVIDIA SDK manager:
1. if you use our image form our website, copy the contents of the "JN30" folder to #
/home/USER/nvidia/nvidia_sdk/Jetpack_4.2.2_Linux_GA_P3448-0020/Linux_for_Tegra/
2. connect the JN30B + Nano via micro-USB OTG cable(J12 on the JN30) to the host UBUNTU PC (16.04 or
higher)
3. turn on the power for the JN30B -> The nano will now boot in force recovery mode
4. start the SDK manger
5. select the Jetson Nano (not the "Jetson Nano (Developer Kit version)“) as target hardware P3448-0020 #
(see screenshot)
6. select the needed Jetpack components
7. wait until the flashing process is finished!
-> first the OS will be flashed to the Nano
-> after the OS is flashed but before any jetpack components are install the system will boot
-> follow the end user configuration of the system to set: system language, keyboard layout,
timezone and user/passwort settings
->nowyoucanproceedwiththeinstallationofthejetpackcomponents!
8. Disconnect the micro-USB OTG cable to prevent the system from booting in force recovery mode the next
time power is turned off and on again.!
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 18

VERSION 1.4 JN30 (38346-X)
JN30 revisions
JN30A Revision 1 (38346)
- first prototype of the JN30 with the pinout for the Jetson Nano dev kit version
JN30A Revision 2 (38346-2)
-pinout for Nano A02 (dev kit module)
- fixed power sequencing
- added J23 Connector on bottom side for USB flashing port
JN30A Revision 3 (38346-3)
- pinout for Nano A02 (dev kit module)
- added JST GH on bottom for USB 2.0 flashing
- added PoE PD (with TPS2378 and MB110S-TP) - !no galvanic isolation for the PD power input
- added L66 (bypass if Vin = 48V - no boost DC converter)
- added I2C bus to PoE chip (selection of 2 I2C busses)
JN30A Revision 3.1 (38346-3.1)
- pinout for Nano A02 (dev kit module)
- added 48V and 12V power out on J7 for 38363
JN30B Revision 4 (38346-4)
- modify pinout for Nano B01 (production module)
- removed eMMC and add micro SD card
- changed connectors to JST GH type (locking)
- added support for M.2 2242 card (added 3rd mount hole)
- added 3.3V level translation for CSI-2 clk and GPIO signals
- added I2S connector (1.8V)
- added UART0 connector (1.8V, with RTS and CTS)
- added USB host mode for micro USB connector
JN30B Revision 5 (38346-5)
-pinout for Nano B01 (production module)
- fixed SPI2 pinout (see J22)
- control USB2 and USB3 power by Nano GPIO (optional) - USB 3 power via FanTach GPIO (optional)
- added mount hole for 2230 cards
- added I2C connector (for OLED displays) - I2C_GEN2
- control PoE PSE power by GPIO_05
- added 2nd I2S connector (J28) with I2S1 bus
- added additional I2C connector (J29) with CAM_I2C bus
- replaced RPi camera logic and connectors with 2 CSI-2 2 lane connectors (J19 and J21)
JN30B Revision 6 (38346-6)
-pinout for Nano B01 (production module)
- minor optimisations for manufacturing
2230 or 2242 NVME card for the JN30B:
https://www.sandisk.com/content/dam/sandisk-main/en_us/assets/resources/data-sheets/Western-Digital-
PC-SN520-Commercial-Datasheet.pdf
JN30A: only for Nano dev kit module
JN30B: only for Nano production module
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 19

VERSION 1.4 JN30 (38346-X)
FAQ
to be added.!
AUVIDEA GMBH TECHNICAL REFERENCE MANUAL 20