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User Guide ......................................................................................................................................... 1
1.1.2 Key features ............................................................................................................................................ 4
1.2 Getting started .................................................................................................................................................. 5
1.2.2 Starting the board for the first time ......................................................................................................... 5
1.3.1 Boot switches and UART debug ............................................................................................................. 5
1.3.2 POWER on button /reset button .............................................................................................................. 6
1.3.3 DC in jack ............................................................................................................................................... 7
1.3.8 USB interfaces ...................................................................................................................................... 10
1.3.9 System and user LEDs .......................................................................................................................... 1 1
01 (J2502)Micro SDCard Socket
02 (J2001)HDMI Type A Port
03 (J1801)USB Type C
04
(D3305)LED,(D3306)WIFI LED
05 (J1901)USB Type A
06 (D3301~D3304)User LED
07 (J1902) USB Type A
08 (J3101) UART Debug
09 (J2103) High Speed Expansion Connector
10 (U501) Kirin970 Processor
11 (U2203)WLAN
12
(D3307)CAN LED, (D3308)GPS LED
13 (J2301)GPS Antenna Connector
14
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Before you power up your HiKey970 board for the first time you will need the following:
HiKey970 board.
A 96Boards compliant power supply.
A HDMI LCD Monitor that supports a resolution of 1080P/60Hz.
HDMI-HDMI cable cable to connect the board to the Monitor.
A computer keyboard with USB interface
A computer mouse with USB interface.
1.2.2 Starting the board for the first time
To start the board, follow these simple steps:
Step 1. Connect the HDMI cable to the HiKey970 HDMI connector (marked J2001) and to
the LCD Monitor.
Step 2. Connect the keyboard to the boards USB connector marked J1901
mouse to the USB connector marked J1902
Step 3. Ensure that the boot switches SW2402 are set to ‘1000’, on/off/off/off position.
Step 4. Connect the power supply to power connector J401.
Once you plug the power supply into a power outlet the board will start the booting process,
and you should see Android boot up.
Please note that the first boot takes several minutes due to Androids initialization. Subsequent
boot times should be faster.
1.3 HiKey970 Overview
1.3.1 Boot switches and UART debug
The HiKey board has multiple boot options that are user selectable in hardware which can be
set via Switch SW2402.
Figure 1-3 Boot switches
(or J1902) and the
(or J1901).
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Auto Power Switch
ON: system will boot up automatically when the power supply is applied.
OFF : Pressing the power switch is required to boot up the system.
Boot Setting Switch
ON: the will attempt to program the UFS flash from USB OTG source. This should ONLY be
used if the first stage bootloader is corrupted or needs to be replaced.
OFF : the unit boots from the first stage bootloader installed in the onboard UFS device.
User Jumper
Connected to GPIO_055 on the SoC and UEFI mode
ON : GPIO_055 will be pulled low, the board will boot up UEFI mode
OFF: GPIO_055 will be pulled High, the board will boot up the system
I2S SEL
ON: I2S0 will connect Low Speed Expansion Connector
OFF: I2S0 will connect other channel.
The HiKey board also has an option for a Debug UART Type C J3101. This is normally used
by the first stage bootloader developers, and is connected to the UART6 port of the SoC.
1.3.2 POWER on button /reset button
The power button S2403 can be used to power up, power down the system.
A simple press and release powers ON the board provided the Auto Power Jumper is not
installed.
A press and release will then power OFF the board
The Reset button S2402 can be used to reset the system.
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It is also possible to connect external switches for power on/off . This is implemented by
routing the specific power signals to the low speed bus connector J2101.4(PWRON_N) and
J2401.6(EXP_RSTOUT_N).
1.3.3 DC in jack
DC Power is provided via the DC jack at P401. This is a CUI PJ-041H connector with a
center pin diameter of 1.65mm configured with positive polarity (center +). An 8V up to 18V
power supply at a minimum of 2A rating can be used to provide sufficient board power for on
system requirements as well as external devices. Additional current rating may be required for
mezzanine boards or modules. DC Power can also be supplied via the SYS_DCIN pins on the
low speed expansion J2101.
NOTE: Power should not be supplied simultaneously from multiple sources
1.3.4 Low speed expansion connector
The HiKey board features two expansion connectors: one low speed expansion connector and
one high speed. The low speed expansion connector carries GPIO and other low speed
interfaces. The connector is a low profile 40 pin female 2mm receptacle (20x2) of a specified
height of 4.5mm height.
The low speed expansion brings out 1.8V level SoC signals such as UART2 and UART3,
I2C0 and I2C1, GPIO signals as well as SPI, Audio, Reset, 1.8V and Ground. The complete
list of SoC signals is shown in Table 1 below:
The HiKey board can also drive 5V or 12V cooling fans. The power for these is available on
the low speed Expansion connector and can be supplied through a 2-pin 2mm male header
inserted at pins J2101.37-J2101.39 or J2101.38-J2101.40, respectively
1.3.5 High speed expansion connector
The HS Expansion connector is a board to board low profile 60 pin receptacle TE part.
The HiKey board is equipped with a TI WL1835MOD WLAN Baseband Processor and RF
Transceiver which supports IEEE 802.11a, 802.11b, 802.11g and 802.11n WiFi.
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A PCB chip antenna is available onboard by default but also an external antenna socket option
is provided via J201&J2202 footprint. A Hirose U.FL-R-SMT connector can be soldered at
J2201&J2202 location.
The HiKey board is equipped with a Broadcom BCM4753 GPS Baseband Processor and RF
Transceiver. A Hirose U.FL-R-SMT connector can be soldered at J2301 location.
1.3.7 Display interfaces
The on board HDMI is provided via the Analog Devices ADV7535 multifunction video
interface chip is available on the Type A HDMI connector mounted at J2001. This connector
is ESD protected with TI protection diodes.
A 4 lane MIPI/DSI port is provided on the HS Expansion bus interface. Below is a block
diagram of the HiKey implementation.
Figure 1-5 HDMI&LCD
HS IO EXP
J2103
Hi3670
1.3.8 USB interfaces
There are a total of 4 USB ports on the HiKey board. Two Type-A USB 3.0 host ports at
J1901 and J1902, one type C 2.0 host/slave port at P1801 and one USB host port available on
the High Speed Expansion bus.
DSI0
SWITCH
DSI-HDMI
ADV7535
J2001
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The HiKey board utilizes a single SoC USB interface without USB protocol hardware split
transfer support. The USB interfaces are therefore subject to the following restrictions:
The type C or the Type A/Mezzanine board interfaces may be used depending on the
state of GPIO_034_USBSW_SEL. Both interfaces may not be used at the same time.
The type C port supports a single attached device with USB slave operations or USB
host high speed, full speed or low speed operations.
The Type A/Mezzanine board interfaces cannot support mixed speed devices. All
attached devices must be of the same type – high speed, full speed or low speed.
Furthermore, the HiKey board must be configured in software to support either full
speed/low speed devices (default) or high/super speed devices on these ports.
1.3.9 System and user LEDs
There are four status LEDs and four User LEDs on the HiKey board. The user LEDs can be
programmed by the SoC directly.
D3305 – WiFi LED
The WiFi activity LED is a Yellow type surface mount 0603 LED.
D3306- LED
The activity LED is a Blue Type surface mount 0603 LED .
D3301-D3304 – USER LEDs
The four user LEDs are surface mount Green Type 0603 LED .
D3308-GPS LED
D3307-CAN LED
1.3.10 JTAG header
The HiKey board includes the option for soldering a 10 pin header that brings out the SoC
signals for JTAG debug. A FTSH-105-01-F-DV header can be populated at J2501.
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Hikey970 board reserved an Ethernet connector, but Ethernet function is not supported by
current software.
1.4 FCC Regulations:
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
—Consult the dealer or an experienced radio/ TV technician for help.
Changes or modifications not expressly approved by the manufacturer could void the user’s
authority to operate the equipment.
FCC RF Radiation Exposure Statement
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This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. To comply with FCC RF Exposure compliance requirements, this grant is applicable
to only Mobile Configurations. The antennas used for the transmitter must be installed to provide a
separation distance of at least 20cm from all persons and must not be co-located or operating in
conjunction with any other antenna or transmitter.
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