Advantech EmbCore ROM-7421 User manual

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 1
ROM-7421 Evaluation Board
Quick Start Guide

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 2
Contents
1. Copyright Notice
2. Introduction
3. Quick installation of ROM-7421 evaluation board
3.1 Evaluation Boards Specification
3.2 Proper Handling Method
4. ROM-7421 quick start
4.1 Debug Port handling
4.2 Power on evaluation board
4.3 Jumper setting
5. I/O Specification
5.1 ROM-7421 evaluation board overview
5.2 Connectors and Headers
6. Test Scripts

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 3
1. Copyright Notice
This document is copyrighted, 2016 by Advantech Co., Ltd. All rights are reserved.
Advantech Co., Ltd. reserves the right to make improvements to the products described in this
document at any time. Specifications are thus subject to change without notice.
No part of this document may be reproduced, copied, translated, or transmitted in any form or by
any means without the prior written permission of Advantech Co., Ltd. Information provided in
this manual is intended to be accurate and reliable. However, Advantech Co., Ltd. assumes no
responsibility for its use, or for any infringements upon the rights of third parties which may result
from its use.
All the trademarks of products and companies mentioned in this document belong to their
respective owners.

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 4
2. Introduction
This document is to introduce ROM-7421 evaluation boards and let the end users start module
evaluation easily and smoothly. It includes 2 parts of concepts: Start-up process and the detail
input/output connector and pin header specifications.
ROM-7421 evaluation boards are ROM-7421 RISC Qseven 2.0 module based on NXP i.MX6
Dual/Quad Plus 1GHz SoC and its corresponding carrier board ROM-DB7501 Advantech RISC
Qseven 2.0 Evaluation Carrier Board. It is highly recommended to completely read this document
before starting ROM-7421 board evaluation since it includes critical information as pin define,
handling process and connector information. In the meanwhile, you should also comply with all
warming notices and regulations you read in this document, it can prevent damaging ROM-7421
evaluation boards and spoiling those devices being connected.
Inappropriate installation may cause physical damage to ROM-7421 and its carrier board
ROM-DB7501, result in function loss or abnormal behaviors as kernel panic or unstable electric
currents in the evaluation kit. In this case, we would identify this inappropriate use of evaluation
kit as human negligence and it is excluded from our quality assurance policy.
For more information about Advantech’s product, please go visiting: www.advantech.com
For RISC product offering, please go visiting: risc.advantech.com

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 5
3. Quick installation of ROM-7421 evaluation kit
3.1 Evaluation Boards Specification
Item
Description
Kernel
CPU
Freescale i.MX6 Dual/Quad Plus 1GHz (ARM Cortex-A9)
2D/3D Accelerators
Support OpenGL ES 2.0 and OpenVG™ 1.1 hardware accelerators
System RAM
1GB/2GB
Onboard Flash
4GB
RTC
Yes
Watchdog Timer
Yes
Reset
H/W reset & S/W reset
I/O
COM
-Console, RS-232, 2–wire(TX/RX), Reserved
-COM 1, RS-232, 4–wire(TX/RX/RTS/CTS), Connector
-COM 2, RS-232, 4–wire(TX/RX/RTS/CTS), DB9
Ethernet LAN
1 x 10/100/1000 Gigabit Ethernet(RJ-45)
USB Port
2 x USB 2.0 Type A, 1x USB 2.0 Pin Header (2 USB 2.0)
USB OTG
1 x USB 2.0 OTG
SD/MMC
1 x SD/MMC card slot
PCI-E
1 x PCIe Gen2 LAN1
SATA
1 x
I2C Interface
1 x
I2S Interface
1 for audio codec adapter board
SPI Interface
1 x
CAN BUS
1 x 5V level
GPIO
8 x 3.3V level GPIOs
Battery
1 x
Multimedia
Graphic Chip
CPU internal LCD controller
LCD Resolution
Default: 800 x 480 7” WVGA
Optional: 320 x 240 ~ 1920 x 1080
LVDS
2 x
HDMI
1 x
VGA
1 x
Brightness/
Backlight Control
Yes
Audio
Line-out&Mic-in (with Codec adapter board support)
Camera
1 x MIPI CSI

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 6
Power
Power-on Type
AT/ATX
DC-input
12V
Power Consumption
Normal Run: 2.5W
Full Run: 5W
Power Control
1 x Power button
1 x Reset button
1 x Sleep mode button
Power
Management
-Standard mode
-Sleep mode
Mechanical and Environmental
Board size
ROM-7420: 70x70x5mm (PCB thickness 1.2mm; 10 layers)
ROM-DB7500: 170 x 170 x 30 mm (PCB thickness 1.2mm; 8
layer)
Weight
225g
Operation
Temperature
-40 ~ 85°C (32 ~ 140°F)
Operating
Humidity
5% ~ 95% Relative Humidity, non condensing
Vibration
3.5G, 1000 times
Others
RoHS
Yes
Certification
CE/FCC Class B
O.S
Yocto Linux

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 7
3.2 Proper Handling Method
①Please insert ROM-7421 module to carrier board ROM-DB7501 properly.
②Please fix the screws properly.

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 8
4. ROM-7421 quick start
4.1 Debug Port handling
①Connect debug port cable to debug port adapter board, make sure the jumpers
are set as below:
②Connect debug port to ROM-7421
③Connect debug adapter board to a COM port cable then connect to PC
PC

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 9
④Set hyper terminal in your PC as below
4.2 Power on evaluation board
①Insert power adapter cable to DC-in jack, make sure it is a +12V power adapter
②Press the power button on ROM-DB7501

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 10
4.3 Jumper setting
①LVDS Jumper
LVDS_VDD1
Panel Power Setting
Description
Panel Power for LVDS1
(1-2)
3V
(2-3)
5V
LVDS_VDD3
Panel Power Setting
Description
Panel Power for LVDS2
(1-2)
3V
(2-3)
5V
LVDS_VDD4
Panel Power Setting
Description
Panel Power for LVDS2
(1-2)
12V
②LVDS Backlight Inverter
LVDS_BL1
Panel Power Setting
Description
Panel Inverter for LVDS1
(1-2)
5V
(2-3)
12V
LVDS_BL2
Panel Power Setting
Description
Panel Inverter for LVDS1
(1-2)
5V
(2-3)
12V

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 11
③AT/ATX Jumper
ATATX1
Power Setting
Description
Power-on mode
(1-2)
ATX
(2-3)
AT

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 12
5. I/O Specification
5.1 ROM-7421 evaluation board overview
DC-in
GPIO
HDMI
Audio Jack
RJ45
USB 3.0
CAN0
COM2

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 13
5.2 Connectors and Headers
A. DC Jack Connector
Please apply 12V power adapter through this connector.
Pin
Signal
1
+12V
Shield
GND
LVDS1
LVDS2
PCIE
SATA PWR
SATA
USB
BKLT1
BKLT2
SD
OTG
Battery
Charger
COM1
I2S to CODEC
SPI
I2C

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 14
B. CAN Bus
CAN buses with 5V level. The connector being used is standard DB9 in male.
Pin
Signal
1
2
D-
3
4
5
GND
6
GND
7
D+
8
9
C. HDMI
ROM-DB7501 HDMI follow HDMI 2.0 Spec, supported resolution is up to 1920x1080
Pin
Signal
1
TMDS_LANE2+
2
GND
3
TMDS_LANE2-
4
TMDS_LANE1+
5
GND
6
TMDS_LANE1-
7
TMDS_LANE0+
8
GND
9
TMDS_LANE0-
10
TMDS_CLK+
11
GND
12
TMDS_CLK-
13
14
15
DDC CLK
16
DDC DAT
17
GND
18
+5V
19
HPD

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 15
D. GPIO
9 pins GPIO controlled by software
Pin
Signal
1
GPI_0
2
GPI_1
3
GPI_2
4
GPI_3
5
GND
6
GPO_0
7
GPO_1
8
GPO_2
9
GPO_3
E&F. RJ45 + USB connector
RJ45 with 10/100/1000 Ethernet plus two USB 2.0 Type A connectors
Pin
Signal
1
CT
2
MDI0+
3
MDI0-
4
MDI1+
5
MDI1-
6
MDI2+
7
MDI2-
8
MDI3+
9
MDI3-
10
GND
11
ACTIVE LED -
12
ACTIVE LED +
13
LINK 1000 -
14
LINK 100 -
15
+5V
16
USB PORT 2 -
17
USB PORT 2 +
18
GND
19
+5V
20
USB PORT 1 -
21
USB PORT 1 +
22
GND

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 16
G. COM2
9 pins DB9 for 4-wire RS-232
Pin
Signal
1
-
2
Rx
3
Tx
4
-
5
GND
6
-
7
RTS
8
CTS
9
-
H. SPI
SPI pin header
Pin
Signal
1
+3V
2
GND
3
SPI0_CS0#
4
SPI0_CLK
5
SPI0_MOSI
6
SPI0_MISO
7
-
8
SPI0_CS1#
I. I2C
I2C Connector
Pin
Signal
1
GND
2
I2C_DATA
3
I2C_CLK
4
+3V
J. I2S
I2S to audio codec board (Referenced P/N: 9696MEG510E )
Pin
Signal
1
AUDIO_VDDA
2
GND
3
AUDIO_VDDA
4
I2S_SDIN

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 17
5
I2S_SDOUT
6
I2S_LRCK
7
I2S_CLK
8
AUDIO_MCK
9
-
10
GND
11
I2C_AUDIO_CLK
12
MIC_BIAS
13
I2C_AUDIO_DATA
14
GND
15
-
16
HP_R
17
MIC_IN
18
GND
19
GND
20
HP_L
K. OTG
USB OTG Port for ROM-DB7501
Pin
Signal
1
+5V
2
USB_OTG D-
3
USB_OTG D+
4
OTG ID
5
GND
L. COM1
4-wire RS-232
Pin
Signal
1
-
2
-
3
RX
4
RTS
5
TX
6
CTS
7
-
8
-
9
GND
10
-

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 18
M. LVDS 1 & 2
LVDS1 and LVDS2 Pin Define
Pin
Signal
Pin
Signal
1
+VDD_LVDS
2
+VDD_LVDS
3
GND
4
GND
5
+VDD_LVDS
6
+VDD_LVDS
7
LVDS D0-
8
-
9
LVDS D0+
10
-
11
GND
12
GND
13
LVDS D1-
14
-
15
LVDS D1+
16
-
17
GND
18
GND
19
LVDS D2-
20
-
21
LVDS D2+
22
-
23
GND
24
GND
25
LVDS CK-
26
-
27
LVDS CK+
28
-
29
GND
30
GND
31
DID_CK
32
DID_DAT
33
GND
34
GND
35
LVDS D3-
36
-
37
LVDS D3+
38
-
39
GND
40
LVDS_CTRL
N. BKLT 1&2
LVDS1 and LVDS2 Backlight
Pin
Signal
1
+VDD
2
GND
3
BKL_ENABLE
4
Brightness
5
+5V
O. USB
USB Pin header for ROM-DB7501
Pin
Signal
1
+5V
2
+5V
3
USB0_DN_X
4
USB3_DN_X

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 19
5
USB0_DP_X
6
USB3_DP_X
7
GND
8
GND
10
GND
P. Battery Charger
Smart Battery for ROM-DB7501
Pin
Signal
1
GND
2
GND
3
BAT_THER
4
BAT_ID_CN
5
I2C_DAT_BAT
6
I2C_CK_BAT
7
+VBATT
8
+VBATT
Q. SATA
SATA /SATA DOM support
Pin
Signal
1
GND
2
SATA_TX+
3
SATA_TX-
4
GND
5
SATA_RX-
6
SATA_RX+
7
SATA DOM Pin 7
R. SATA Power
SATA/SATA DOM Power
Pin
Signal
1
+5V
2
GND
3
GND
4
+12V

Copyright © 1983-2016 Advantech Co., Ltd. All Rights Reserved 20
S. PCIe
PCIE to mini-PCIe adapter card reference P/N is 9680015491
Pin
Signal
Pin
Signal
B1
+12V
A1
+12V
B2
+12V
A2
+12V
B3
+12V
A3
+12V
B4
GND
A4
GND
B5
PCIE_A_CK
A5
PCIEX_A_JTAG2
B6
PCIE_A_DAT
A6
PCIEX_A_JTAG3
B7
GND
A7
PCIEX_A_JTAG4
B8
+3V
A8
PCIEX_A_JTAG5
B9
PCIEX_A_JTAG1
A9
+3V
B10
+3V
A10
+3V
B11
+3V
A11
PWRGD
Mechanical Key
B12
Reserved
A12
GND
B13
GND
A13
PCIE_A_REFCK+
B14
PCIE_A_X_TX+
A14
PCIE_A_REFCK-
B15
PCIE_A_X_TX-
A15
GND
B16
GND
A16
PCIE_A_X_RX-
B17
+3V
A17
PCIE_A_X_RX-
B18
GND
A18
GND