Congatec conga-SKIT/ARM i.MX8 User manual

Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 1/10
conga-SKIT/ARM i.MX8
Starter Kit for congatec SMARC 2.0 Development
Quick Start Guide
Revision 1.1

Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 2/10
Preface
This quick start guide provides information on the contents of the
conga-SKIT/ARM i.MX8 and how to set it up.
Disclaimer
The information contained within this quick start guide, including but not
limited to any product specification, is subject to change without notice.
congatec AG provides no warranty with regard to this guide or any other
information contained herein and hereby expressly disclaims any implied
warranties of merchantability or fitness for any particular purpose with
regard to any of the foregoing. congatec AG assumes no liability for any
damages incurred directly or indirectly from any technical or typographical
errors or omissions contained herein or for discrepancies between the
product and this guide. In no event shall congatec AG be liable for any
incidental, consequential, special, or exemplary damages, whether based
on tort, contract or otherwise, arising out of or in connection with this
guide or any other information contained herein or the use thereof.
Intended Audience
This guide is intended for technically qualified personnel. It is not intended
for general audiences.
Lead-Free Designs (RoHS)
All congatec AG designs are created from lead-free components and are
completely RoHS compliant.
Electrostatic Sensitive Device
All congatec AG products are electrostatic sensitive devices. They are enclosed
in static shielding bags, and shipped enclosed in secondary packaging
(protective packaging). The secondary packaging does not provide electrostatic
protection.
Do not remove the device from the static shielding bag or handle it, except
at an electrostatic-free workstation. Also, do not ship or store electronic
devices near strong electrostatic, electromagnetic, magnetic, or radioactive
fields unless the device is contained within its original packaging. Be aware
that failure to comply with these guidelines will void the congatec AG Limited
Warranty.
Copyright Notice
Copyright © 2018, congatec AG. All rights reserved. All text, pictures and
graphics are protected by copyrights. No copying is permitted without written
permission from congatec AG.
congatec AG has made every attempt to ensure that the information in this
document is accurate yet the information contained within is supplied “as-is”.
Trademarks
Product names, logos, brands, and other trademarks featured or referred to
within this guide, or the congatec website, are the property of their respective
trademark holders. These trademark holders are not affiliated with congatec
AG, our products, or our website.
Certification
congatec AG is certified to DIN EN ISO 9001 standard.
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Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 3/10
Warranty
congatec AG makes no representation, warranty or guaranty, express
or implied regarding the products except its standard form of limited
warranty (“Limited Warranty”) per the terms and conditions of the
congatec entity, which the product is delivered from. These terms and
conditions can be downloaded from www.congatec.com. congatec AG
may in its sole discretion modify its Limited Warranty at any time and from
time to time.
The products may include software. Use of the software is subject to the
terms and conditions set out in the respective owner’s license agreements,
which are available at www.congatec.com and/or upon request.
Beginning on the date of shipment to its direct customer and continuing
for the published warranty period, congatec AG represents that the
products are new and warrants that each product failing to function
properly under normal use, due to a defect in materials or workmanship
or due to non conformance to the agreed upon specifications, will be
repaired or exchanged, at congatec’s option and expense.
Customer will obtain a Return Material Authorization (“RMA”) number
from congatec AG prior to returning the non conforming product freight
prepaid. congatec AG will pay for transporting the repaired or exchanged
product to the customer.
Repaired, replaced or exchanged product will be warranted for the
repair warranty period in effect as of the date the repaired, exchanged or
replaced product is shipped by congatec, or the remainder of the original
warranty, whichever is longer. This Limited Warranty extends to congatec’s
direct customer only and is not assignable or transferable.
Except as set forth in writing in the Limited Warranty, congatec makes no
performance representations, warranties, or guarantees, either express or
implied, oral or written, with respect to the products, including without
limitation any implied warranty (a) of merchantability, (b) of fitness for a
particular purpose, or (c) arising from course of performance, course of
dealing, or usage of trade.
congatec AG shall in no event be liable to the end user for collateral or
consequential damages of any kind. congatec shall not otherwise be
liable for loss, damage or expense directly or indirectly arising from the
use of the product or from any other cause. The sole and exclusive remedy
against congatec, whether a claim sound in contract, warranty, tort or any
other legal theory, shall be repair or replacement of the product only.
Technical Support
congatec AG technicians and engineers are committed to providing the best
possible technical support for our customers so that our products can be easily
used and implemented. We request that you first visit our website at www.
congatec.com for the latest documentation, utilities and drivers, which have
been made available to assist you. If you still require assistance after visiting our
website then contact our technical support department by email at support@
congatec.com

Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 4/10
14000202 SATA power cable 12cm 12cm SATA HDD 15pin SATA to 4pin ATX 1
48000023 RS232 adapter cable MOLEX 6-Pin PicoBlade to two D-SUB 9 1
48000029 SATA III cable 30 cm 30cm SATA III cable, straight / straight 1
500016 ATX Power Supply FSP180-50L max. 180 W (150 x 81.5 x 40.5 mm) 1
85500014 Quick Start Guide Quick Start Guide 1
91500002 Safety and Regulatory
Information
Safety and Regulatory Information 1
91500003 Wireless Content
Information
Wireless Content Information 1
conga-SMX8/i-CSP-B
conga-SMX8/i-HSP-B
cab-LDVI/EPI
conga-RS232-EVAL
conga-SMX8
ATX power supply
Cable and adapter set
conga-SEVAL
1 Hardware
1.1 conga-SMX8 and conga-SEVAL
The conga-SMX8 features application processors from the NXP i.MX8 product
family with up to 8 GB LPDDR4 onboard RAM and 16 GB onboard HS400
eMMC. It is available in commercial and industrial temperature range.
The conga-SEVAL evaluation carrier board provides 1x PCIe x1, 1x mPCIe, 1x
M.2 Key E, 1x USB 2.0 OTG Micro AB, 1x USB Type A, 1x USB 2.0 Type A, 1x
USB 3.1 Type-C, 1x USB 2.0 on M.2, and 1x USB 2.0 on mPCIe. It also provides
2x RJ45 for Gigabit Ethernet, 4x COM, 2x CAN bus, 12x GPIO, Digital and
analog audio I/Os for I2S and HDA. Displays can be connected via dual
channel LVDS, eDP, DP and HDMI. Additional storage media are available via
a SD/MMC socket and 1x SATA 6 Gbps port.
1.2 Kit Content
Part # Name Description Qty
007010 conga-SEVAL Evaluation carrier board for standard SMARC
modules based on SMARC Specification 2.0
1
051020 conga-SMX8/i-QCM-6GB
eMMC16
SMARC 2.0 module with NXP i.MX8 QuadMax
application processor, 1 MB L2 cache, 6 GB
LPDDR4 onboard memory and 16 GB onboard
HS400 eMMC.
1
10000285 MicroSDHC-Card UHS-I 8GB - Kingston industrial SDCIT/EU Class 10
with preinstalled image.
1
051050 conga-SMX8/i-CSP-B Passive cooling solution. All stand-offs are bore
hole 2.7mm
1
051051 conga-SMX/i-HSP-B Standard heatspreader. All stand-offs are bore
hole 2.7mm
1
011115 conga-LDVI/EPI LVDS to DVI converter board for digital flat
panels with onboard EEPROM
1
016153 conga-ACAM/JAL-2721 MIPI camera module adapter with camera JAL-
2721. Image sensor OV5640. MIPI CSI-2.
1
48000026 Flat Foil Cable FFC for conga-ACAM/JAL-2721. 36 pins, pitch
0.5mm, length 150mm, opposite side contact.
1
033331 cab-LVDV-DAT-34-15 15cm data cable LVDS to DVI adapter 1
052147 cab-LVDV-PWR-10-15 15cm power cable LVDS to DVI adapter 1
10000116 USB 2.0 to Serial Adapter USB 2.0 to Serial Adapter DSUB9 based on
FTDI FT232
1
14000200 cab-RS232-EVAL 20cm 2x5pin female to D-Sub 9P male 1

Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 5/10
1.3 Connecting the Hardware
1. Ensure the hardware is protected from the effects of electrostatic
discharge (ESD).
2. On the conga-SEVAL carrier board, set DIP switch M12 #1 to OFF (I²S).
See picture on the right for the location of M12 #1.
3. On the conga-SEVAL carrier board, set jumper X54 to position 2-3
(CARRIER_PWRON). See picture on the right for the location of X54.
4. Ensure the included microSD card is inserted into the slot of the module.
5. Attach the RS232 adapter cable to the connector on the module.
6. Attach the conga-SMX8 module to the carrier board.
7. Mount the conga-SMX8/i-CSP-B passive cooling solution.
8. If required, connect the MIPI camera module or skip to step 9:
a. Pull the black slider until you feel a resistance.
b. Fully slide the flat-foil cable inside the slot above the black slider. The
exposed conductive traces of the flat-foil cable must face up.
c. Press against the black slider until it is locked.
9. Connect the cables and adapters as shown in the picture on the right.
10. Plug a power cable (not included) into the ATX power supply.
11. To power on the system, plug the power cable into a power outlet
(110V-240V) and switch on the PSU.
NOTE: The power, sleep, and LID buttons currently have no function.
X54
M12
#1

Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 6/10
1.4 Interfaces
GND
AT_CARRIER 12V..24V
PWR_LCD0
eDP0 EPI
LVDS/DSI
eDP1
PWR_LCD1
SD/MMC
CGBC JTAG
GPIO [O:3]
PM_I2C
GP_I2C
USB0
(OTG)
SPDIF
GbE0/1 Trigger
GbE1
USB1 +
USB2
USB
Type
-C
DP0 /
HDMI0
RS232 COM0
RS232 COM1
FAN
Battery
Support
CAN1
CAN0
SPIO
SPIO
eSPI
PM MODULE
M.2
mini PCIe
SATA
HDD Power
Feature Connector
SPKR MIC
CSI
ATX 24 pin
X63
GbE0
GND
AT_SMARC 3.0V..5.25V
SIM Card
PCIe
PCIe
CMOS Battery
Audio Card

Reset
  
Power Sleep LID

Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 7/10
1.5 DIP Switch Settings
M11 - DIP Switch (Wireless Disable Signal 1, 2)
Switch # Switch ON Switch OFF
1 W_DISABLE1# ON W_DISABLE1# OFF*
2 W_DISABLE2# ON W_DISABLE2# OFF*
M12 - DIP Switch (Audio and Display)
Switch # Switch ON Switch OFF
1 HDA* I²S
2 eDP LVDS / DSI*
M18 - DIP Switch (SPI_HOLD#)
Switch # Switch ON Switch OFF
2SPI_HOLD# ON SPI_HOLD# OFF*
M18 - DIP M17 - DIP Selected
Boot Source
*1
Switch 1 Switch 2 Switch 1
ON ON ON Boot from Fuses
ON OFF ON USB Serial Downloader
OFF ON ON eMMC0 Boot
OFF OFF ON Carrier Board SD
OFF* OFF* OFF* Module microSD
SW1 - DIP Selected
I2C Address
Switch 1 Switch 2 Switch 3 Switch 4
ON OFF OFF OFF A0
OFF ON OFF OFF A1
OFF OFF ON OFF A2
OFF* OFF* OFF* ON* WP
*
Default setting. Change to the setting highlighted in red for conga-SMX8 module.
*1
Boot source selection does not conform to the SMARC specification.
12
0N
X56
X57
X16
X55
X54
X52
X59
X61
X53
X43
X60
X45
X47 X49
X35 X44
X40
X22
X25
X24
X27
X28
X29
X34
M12 M18 M17 M11
0N
1
2
0N
1
2
0N
1
2
0N
1
2
2 31
2 31
2 31
2 31
2 31
2 31
2 31
2 31
2 31
2 31
2 31
2 31
2 31 2 31
2 31 2 31
2 31
1
4
6
3
5
2 31
2 31
2 31
2 31
2 31
2 31
8
7
SW1
1234
0N
2

Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 8/10
1.6 Jumper Settings
X16 - LAN LEDs
Pin Configuration
1-2 Standby powered*
2-3 Main powered
X22 - LCD0 VDD
Pin Configuration
1-2 3.3 V panel power*
2-3 5 V panel power
X24 - LCD0 BKLT_EN
Pin Configuration
1-2 Non-inverted*
2-3 Inverted
X25 - LCD0 BKLT
Pin Configuration
1-2 Backlight power 12 V
2-3 Backlight power 5 V*
X27 - LCD1 Panel Power
Pin Configuration
1-2 3.3 V*
2-3 5 V
X28 - LCD1 BKLT1
Pin Configuration
1-2 12 V
2-3 5 V*
X29 - LCD1 BKLT_EN1
Pin Configuration
1-2 Non-inverted*
2-3 Inverted
X34 - HDMI/DP1*1
Pin Configuration
1-2 DP1 @ USB Type-C
2-3 HDMI*
X35 - DP1 AUX_SEL*1
Pin Configuration
1-2 Pull-down*
2-3 Pull-up
X40 - GPIO [0:7]
Pin Configuration
1-2 Enabled*
2-3 Disabled
X43 - FAN Power
Pin Configuration
1-2 12V*
2-3 5V
X44 - JTAG/Camera*3
Pin Configuration
1-2 JTAG*
2-3 Camera
X45 - FORCE_RECOV#*3
Pin Configuration
1-2 Normal operation*
2-3 Serial Downloader
X47 - CAN0 Term
Pin Configuration
1-2 Enabled
2-3 Disabled*
X49 - CAN1 Term
Pin Configuration
1-2 Enabled
2-3 Disabled*
X52 - SBM3
Pin Configuration
1-2 Present
2-3 Not present*
X53 - ATX PSON#
Pin Configuration
1-2 ATX Mode*
2-3 AT Mode / Always ON
X54 - ATX Control
Pin Configuration
1-2 CARRIER_SBY#*
2-3 CARRIER_PWRON
X55 - SBY Control
Pin Configuration
1-2 CARRIER_PWRON*
2-3 Always ON
X56 - Postcode
Pin Configuration
1-2 Enabled*
2-3 Disabled
X57 - RTC Battery
Pin Configuration
1-2 Normal operation*
2-3 RTC battery disconnected
X59 - Module Power
Pin Configuration
1-2 3.3 V
2-3 5 V*
X60 - VIN PWRBAD#
Pin Configuration
1-2 ATX_PG (only for debug)
3-4 AT_CARRIER PG
5-6 +3.3V_ATX PG
7-8 AT_SMARC PG
2-4 No control*
X61 - Power Path
Pin Configuration
1-2 Automatic* *2
2-3 AT_SMARC
*
Default setting. Change to the
setting highlighted in red for
conga-SMX8 module.
*1
Only for modules with support
for DP++ at HDMI0/DP1.
*2
Every time +V3.3A gets
enabled, the status of
+AT_SMARC is used to select
the power path (AT vs. 3.3 V / 5
V). This means once activated,
the AT_SMARC path is kept
active until a full power cycle is
performed.
*3
Jumper function differs from
the default conga-SEVAL carrier
board function.
2 31

Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 9/10
2 Software
2.1 Starting Up
The conga-SMX8 uses U-boot as standard bootloader. The bootloader is
GNU GPL open source software. A serial terminal connection is required
in order to display the boot process and to modify the boot behavior. The
boot behavior is controlled via environment variables.
To establish a terminal connection, a terminal program such as TeraTerm
or Putty can be used.
Use the following communication parameters:
Baud rate:
Data:
Parity:
Stop:
Flow control:
115200
8 bit
none
1 bit
none
The following console output will be displayed when the system is powered
on.
2.2 Boot Process
The conga-SMX8 boot process starts at Power On Reset (POR), where the
hardware reset logic forces the ARM core to begin execution, starting from
the on-chip boot ROM of the processor.
After loading, the bootloader will be executed and will perform basic system
initialization (e.g. the system memory, serial console, etc.). Afterwards, the
environment settings are parsed and the system boot will go ahead as
specified.
Press any key during startup to stop autoboot and to get to u-boot console.
At the u-boot console, the environment settings can be displayed using
the “print” command. In addition, useful functionality is available (such as
memory dump, access to the SPI and the I2C system, etc.). The “help”
command will display any command supported by the u-boot.
If autoboot is not interrupted by pressing a key, the boot process goes
ahead and the module will boot the Linux operating system that is installed
on the microSD card.
2.3 U-Boot Environment Variables
The u-boot environment is located in SPI Flash (in microSD for prototypes).
One of the benefits of the u-boot bootloader is the possibility to specify its
run time configuration using environment variables.
The environment variables of u-boot can be displayed using the printenv
(or the print) command.
During the boot process, the bootloader evaluates the “bootcmd” variable
and executes it. The boot command tries to load a bootscript or a kernel
from the boot device. If this is successful, the script or kernel will be started,
otherwise a fallback to network boot is performed. The variable “mmcdev”
specifies the mmc boot device. Furthermore, the variable “mmcroot” is
passed to the kernel in order to specify the location of the root filesystem.

Copyright © 2018 congatec AG SKIT_ARM_iMX8_q11.indd 10/10
The following environment variables are predefined for conga-SMX8:
Name Default value Description
bootcmd Defines the startup command of the bootloader, i.e.
how the system performs the boot process
fdt_file imx8qm-cgtsmx8.dtb The device tree blob, might be exchanged in order to
enhance functionality
image Image The name of the kernel image file that is loaded
during boot process
hdp_file hdmitxfw.bin The binary firmware file for enabling HDMI transmit,
essential to load if video output to HDMI is desired
ipaddr not specified Address of the system (used for network boot)
serverip not specified Address of the remote host (used for network boot)
netmask not specified Netmask of the network (used for network boot)
nfsroot not specified The location where the NFS root filesystem is stored
(used for network boot)
mmcdev "2" (onboard microSD) The boot device number (used for mmcboot)
mmcpart "1" (first partition) The number of the bootpartiton on the bootdevice
(used for mmcboot)
mmcroot "/dev/mmcblk2p2 rootwait
rw" (2nd partition on device 2)
The root filesystem (used for mmcboot), might also
be used to extend the kernel command line
Following, some frequently used scripts:
Name Description
mmcboot Boots the system from mmc (with the specified parameters for mmcboot), i.e.
eMMC, SD-card, microSD-card
mmcargs Configures the bootargs for mmcboot
netboot Boots the system from network (with the specified parameters for network boot)
netargs Configures the bootargs for network boot
loadbootscript Used during boot, loads an eventually existing boot script
loadimage Used during boot, loads the kernel
loadfdt Used during boot, loads the device tree blob file
loadhpd Used during boot, loads the hdmi firmware file
There are several commands to change the behavior of the bootloader and
to customize the boot process. The help command can be used to display
a list of all available commands.
2.4 Linux
By default, the system boots the Linux operating system that is stored on
the microSD card. The operating system image is Yocto.
Booting to the Linux desktop may take some time. This is because the
complete system initialization occurs from a microSD card connected via
a 4-bit interface.
To speed up the boot process significantly, install the root filesystem onto
the onboard eMMC device or an external SATA device.
Note
In order to maintain the integrity of the file system, it is recommended to
always shut down the system by issuing the command “poweroff” in the
console terminal.
2.5 Additional Information
The software provided with the conga-SKIT/ARM i.MX8 is based on the
Yocto Project (www.yoctoproject.org) and i.MX8 specific add-on layers
provided by NXP and congatec.
In order to rebuild the root filesystem image, kernel and bootloader for
conga-SMX8, the complete kernel source, bootloader source and individual
patches can be obtained from the congatec source code repository:
https://git.congatec.com/imx8_early_access
Further software documentation can be found here:
https://git.congatec.com/imx8_early_access/meta-fsl-bsp-release
Note
Contact congatec technical support to get access to the repository.