View source for CL-SOM-iMX7: Evaluation Kit: Hardware Guide

== Overview ==
<blockquote>

=== Terms and Definitions ===
{| border="1" cellspacing="1" cellpadding="3" style="border-collapse:collapse"
! align="center" | Term
! align="center" | Definition
|-
| Evaluation kit
| A combination of CL-SOM-iMX7 & SB-SOM boards accompanied by a set of accessories detailed [http://www.compulab.co.il/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module/#evalkit here]
|-
| CL-SOM-iMX7
| A system-on-module product described [http://www.compulab.co.il/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module here]
|-
| SB-SOM
| A generic carrier board designed to support several ARM evaluation kits from Compulab. 
|-
| SB-SOM-iMX7
| SB-SOM board assembly compatible with CL-SOM-iMX7 system-on-module.
|-
| SoM
| system-on-module
|-
|}

=== Reference Carrier Board ===
The evaluation kit is shipped with a special assembly of the SB-SOM carrier board - SB-SOM-iMX7. 

The design materials for SB-SOM (including schematics, PCB layout and Bill of Materials) are available for download from [http://www.compulab.co.il/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module/#devres here]

==== Additional resources ====
* [[CL-SOM-iMX7: Evaluation Kit: Getting Started | Getting started with CL-SOM-iMX7 evaluation kit]]
* [[CL-SOM-iMX7 Freescale i.MX7 Linux|CL-SOM-iMX7 Linux guide]]
<!-- * [[CL-SOM-iMX7 Freescale i.MX7 Yocto Linux|CL-SOM-iMX7 Yocto guide]] -->
* [http://www.compulab.co.il/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module/#devres CL-SOM-iMX7 development resources]
</blockquote>

== Carrier Board ==
{{note|The drawing represents a generic SB-SOM board. Some connectors might not be populated in CL-SOM-iMX7 evaluation kit.}}

{| border="0" cellspacing="1" cellpadding="3" style="border-collapse:collapse"
|
[[Image:SB_SOM_topview2.jpg|600px|alt=SB-SOM top view|<div align="center">SB-SOM top view</div>]]
|
[[Image:SB_SOM_bottomview2.jpg|600px|alt=SB-SOM bottom view|<div align="center">SB-SOM bottom view</div>]]
|}

== Interfaces and Functions ==
=== Main Power ===
----
Evaluation kit main power can be provided from either a Li-Poly battery, or a DC power source. 
<blockquote>
==== Option 1 - DC only ====
Connector '''J6''' is the main DC power source of thе evaluation kit.
The DC power supply unit included with the evaluation kit provides 12V DC power to the system through '''J6'''.

==== Option 2 - Li-Poly Battery ====
Battery powered operation of the evaluation kit is supported through the main battery connector '''P19'''.
The evaluation kit is shipped with an accessory battery adapter allowing '''P19''' connection to custom batteries.
Please refer to [[SB-SOM:_Li-Poly Battery|battery specification]] for details on supported batteries.
<blockquote>

==== Main Battery Charging ====
This evaluation kit supports main battery charging when both power sources (Battery + DC) are available.
The '''DS1''' LED indicates battery charging is in progress.
Detailed status of the battery and charging process is available to software through I2C access to the SB-SOM-iMX7 on-board battery charger (U25 in SB-SOM schematics) and charging supervisor (U24 in SB-SOM schematics).
</blockquote>
</blockquote>
'''More Details:''' ''[[SB-SOM:_Connectors:_J6_and_J8|Connector J6]]'', ''[[SB-SOM:_Connectors:_P19|Connector P19]]''<!--, ''[[SB-SOM:_LEDS:_DS1|LED DS1]]''-->, ''[[SB-SOM:_Li-Poly Battery|Battery Specification]]''.

=== Serial Console ===
----
Serial console is available through one of the following interfaces:
* Serial over USB using micro-USB2.0 Type-B '''P7''' connector. Continue to [[SB-SOM: HOWTO: USB Console|USB console guide]] for USB interface setup instructions.
* Serial over RS-232 using the '''P8''' connector with custom RS-232 cable (included with the evaluation kit). Continue to [[SB-SOM: HOWTO: RS-232 Console|RS-232 console guide]] for RS-232 interface setup instructions.

'''More Details:''' ''[[SB-SOM:_Connectors:_P7|Connector P7]]'', ''[[SB-SOM:_Connectors:_P8|Connector P8]]'', <!-- ''[[SB-SOM:_Jumpers:_E3|Jumper E3]]'', ''[[SB-SOM:_LEDS:_DS2_and_DS3|LED DS2]]'', ''[[SB-SOM:_LEDS:_DS2_and_DS3|LED DS3]]'', -->''[[SB-SOM: HOWTO: USB Console|USB console guide]]'', ''[[SB-SOM: HOWTO: RS-232 Console|RS-232 console guide]]''.

=== USB ===
----
Both CL-SOM-iMX7 USB ports are accessible with this evaluation kit:
# CL-SOM-iMX7 Native USB Port 1 is available through the OTG connector '''P3''' (only USB2.0 part of the connector is utilized).
#* USB Host connection: The micro-USB to USB type-A adapter included with evaluation kit (available for purchase [http://www.compulab.co.il/support/cables-connectors-accessories/ here]) allows usage of connector '''P3''' as a standard USB2.0 host port.
#* USB Gadget connection: A standard micro-USB cable (included with evaluation kit) enables connection of the evaluation kit as a USB gadget to the USB port of your host computer.
# CL-SOM-iMX7 Native USB Port 2 is available through one of the following connectors, depending on the state of jumper '''E7'''.
#* '''E7''' <u>not</u> populated: Only Dual stacked USB2.0 '''P6''' connector and '''P16''' mini-PCI-express connector are enabled.
#* '''E7''' populated: Only '''P26''' USB2.0 connector is enabled.
# CL-SOM-iMX7 onboard USB hub ports are accessible through the '''P5''' 100mil header. Using the CONUSB adapter included with the evaluation kit (available for purchase [http://www.compulab.co.il/support/cables-connectors-accessories/ here]), allows connection of standard USB2.0 devices to these ports. '''P5''' pins used for each port are shown in table below
<blockquote>
{| border="1" cellspacing="1" cellpadding="3" style="border-collapse:collapse"
! align="center" | Pin Name
! align="center" | HUB port 1
! align="center" | HUB port 2
! align="center" | HUB port 3
|-
! Power 5V
| align="center" | P5-27
| align="center" | P5-19
| align="center" | N/A
|-
! Negative Data
| align="center" | P5-29
| align="center" | P5-21
| align="center" | P5-1
|-
! Positive Data
| align="center" | P5-31
| align="center" | P5-23
| align="center" | P5-3
|-
! GND
| align="center" | P5-33
| align="center" | P5-25
| align="center" | N/A
|-
|}
</blockquote>

'''More Details:''' ''[[SB-SOM:_Connectors:_P3|Connector P3]]'', ''[[SB-SOM:_Connectors:_P6|Connector P6]]'', ''[[SB-SOM:_Connectors:_P16|Connector P16]]'', ''[[SB-SOM:_Connectors:_P26|Connector P26]]'', ''[[SB-SOM:_Connectors:_P5|Connector P5]]''<!--, ''[[SB-SOM:_Jumpers:_E7|Jumper E7]]'', ''[[SB-SOM:_LEDS:_DS6|LED DS6]]''-->.

=== CAN ===
----
Two steps are required in order to utilize the CAN bus interface available with the evaluation kit.
# Use jumper wires to connect 100mil header pins where CAN bus functionality (either CAN1 or CAN2 interface) is available (multiplexed), to the '''P23''' CAN header, as shown below:
#* For CAN1 interface:
#*# Use a jumper wire to connect pin P4-2 to P23-1 onboard the evaluation kit.
#*# Use a jumper wire to connect pin P4-4 to P23-4 onboard the evaluation kit.
#* For CAN2 interface:
#*# Use a jumper wire to connect pin P4-32 to P23-1 onboard the evaluation kit.
#*# Use a jumper wire to connect pin P4-34 to P23-4 onboard the evaluation kit.
# CAN bus nodes can be connected to evaluation kit header '''P5''' as described in [[SB-SOM:_HOWTO:_CAN_Connection|CAN node connection guide]].

'''More Details:''' ''[[SB-SOM:_Connectors:_P4|Connector P4]]'', ''[[SB-SOM:_Connectors:_P23|Connector P23]]'', ''[[SB-SOM:_Connectors:_P5|Connector P5]]'', ''[[SB-SOM:_HOWTO:_CAN_Connection|CAN node connection guide]]''.

=== Ethernet ===
----
The kit features two 1Gbps copper Ethernet ports. 

<blockquote>
==== Primary Ethernet ====
The primary Ethernet port is available through RJ45 connector '''P21'''.

==== Secondary Ethernet ====
The secondary Ethernet port is available through RJ45 connector '''P22'''.
</blockquote>

'''More Details:''' ''[[SB-SOM: Connectors: P21 and P22|Connector P21]]'', ''[[SB-SOM: Connectors: P21 and P22|Connector P22]]''.

=== PCI-Express ===
----
Plug your PCI-Express device into the evaluation kit mini-PCIe connector '''P16'''. Full/Half size mini-PCIe boards are supported.

'''More Details:''' ''[[SB-SOM:_Connectors:_P16|Connector P16]]''.

=== Wireless ===
----
<blockquote>
==== WiFi/Bluetooth ====
Connect both antennas (included with evaluation kit) to CL-SOM-iMX7 connectors J1 and J2 for WiFi and/or Bluetooth operation.

==== Cellular ====
USB and/or PCI-express interfaced cellular modems (2G/3G/4G etc.) can be plugged into connector '''P16''' (mini-PCI-Express) as explained below:
# Remove jumper '''E7''' to enable USB interface on P16. '''DS6''' LED indicates USB interface availability at '''P16'''.
# Plug your modem into '''P16''' mini PCI-Express connector.
# Insert your micro-SIM card into the '''P13''' micro-SIM slot (only relevant if your cellular modem requires a sim card access while not featuring an onboard SIM slot).
</blockquote>

'''More Details:''' ''[[SB-SOM:_Connectors:_P16|Connector P16]]'', ''[[SB-SOM:_Connectors:_P13|Connector P13]]''<!--, ''[[SB-SOM:_Jumpers:_E7|Jumper E7]]'', ''[[SB-SOM:_LEDS:_DS6|LED DS6]]''-->.

=== Display ===
----
Evaluation kit supports display interfaces listed below (not simultaneously). Selection of active display interface is set by software.
<blockquote>
==== LCD ====
LCD panel (included with evaluation kit) is the display enabled by default with [[CL-SOM-iMX7:_Linux:_Debian|CL-SOM-iMX7 linux demo image]].
Connect the LCD panel the evaluation kit through the FPC connector '''P10'''.
<!--
* [[SB-SOM:_HOWTO:_LCD_Connection|LCD hardware connection guide]]
-->

==== DVI ====
The DVI display interface is accessible through the HDMI connector '''J5'''.
<!--
* [[SB-SOM:_HOWTO:_DVI_Connection|DVI hardware connection guide]]
-->

==== LVDS ====
The CL-SOM-iMX7 LVDS display interface is accessible through evaluation kit header '''P11'''.
This header enables simple connection (with jumper wires) to any LVDS panel.
Please refer to SB-SOM schematics for detailed information on '''P11'''.
</blockquote>

'''More Details:''' ''[[SB-SOM:_Connectors:_P10|Connector P10]]'', ''[[SB-SOM:_Connectors:_J5|Connector J5]]'', ''[[SB-SOM:_Connectors:_P11|Connector P11]]''.

=== System ===
----
<blockquote>
==== Reset ====
Pressing the reset button ('''SW2''') triggers evaluation kit cold reset.

==== Boot Sequence Selection ====
Evaluation kit supports normal and alternate boot sequences. Detailed description of the sequences is available in the CL-SOM-iMX7 reference guide.
* Pressing and holding the ALT.BOOT button ('''SW3''') during power-up or cold reset forces alternative boot sequence.
* Populating the '''E1''' jumper, constantly forces alternative boot sequence.
* Indication of selected boot sequence is shown with the '''DS12''' LED.

==== Power ON / Cycle ====
* A short press of the PWRDn button ('''SW1''') while system is operational, generates an OFF request to be serviced by software.
* A long (>5Sec) press of the PWRDn button ('''SW1''') while system is operational, unconditionally shuts down the system (same as simply removing power source).
* A short press of the PWRDn button ('''SW1''') while system is off, triggers the system start-up sequence.

==== RTC ====
The evaluation kit RTC (implemented onboard CL-SOM-iMX7) is powered by a coin cell battery. RTC power can be disconnected by:
* Removing the coin cell battery.
* Removing jumper '''E8'''.

To quickly discharge the RTC power, momentarily short pins 1 and 2 of jumper '''E8'''.
</blockquote>
<!--
'''More Details:''' ''[[SB-SOM:_Buttons:_SW1|Button SW1]]'', ''[[SB-SOM:_Buttons:_SW2|Button SW2]]'', ''[[SB-SOM:_Buttons:_SW3|Button SW3]]'', ''[[SB-SOM:_Jumpers:_E1|Jumper E1]]'', ''[[SB-SOM:_Jumpers:_E8|Jumper E8]]'', ''[[SB-SOM:_LEDS:_DS12|LED DS12]]''.
-->

=== Multi functional signals access ===
----
<blockquote>
==== Camera ====
Part of the CL-SOM-iMX7 camera interface signals are accessible through the evaluation kit '''P18''' header.

Please refer to CL-SOM-iMX7 reference guide and SB-SOM schematics for details.

==== UART ====
CL-SOM-iMX7 UART interfaces are partially accessible through headers '''P4''', '''P5''' and '''P18'''.

Please refer to CL-SOM-iMX7 reference guide and SB-SOM schematics for details.

==== SPI ====
CL-SOM-iMX7 SPI interface signals are partially accessible through headers '''P4''', '''P5''' and '''P18'''.

Please refer to CL-SOM-iMX7 reference guide and SB-SOM schematics for details.

==== I2C ====
CL-SOM-iMX7 I2C interface signals are partially accessible through headers '''P4''', '''P5''' and '''P18'''.

Please refer to CL-SOM-iMX7 reference guide and SB-SOM schematics for details.

==== GPIO ====
Some of the CL-SOM-iMX7 GPIO signals are accessible through headers '''P4''', '''P5''' and '''P18'''.

Please refer to CL-SOM-iMX7 reference guide and SB-SOM schematics for details.
</blockquote>

'''More Details:''' ''[[SB-SOM:_Connectors:_P4|Connector P4]]'', ''[[SB-SOM:_Connectors:_P5|Connector P5]]'', ''[[SB-SOM:_Connectors:_P18|Connector P18]]''.

=== Jumpers Summary ===
----
<blockquote>
#'''E1''' - Boot Sequence/Production.
#'''E2''' - CL-SOM-iMX7 onboard <!-- [[Board specific data EEPROM]] --> board specific data EEPROM write-protection.
#'''E3''' - <!-- [[SB-SOM: HOWTO: Console|Serial console interface]] --> Serial console interface auto detection.
#'''E4''' - SB-SOM <!-- [[Board specific data EEPROM]] --> board specific data EEPROM write-protection
#'''E5''' - LVDS display connector '''P11''' power source selection.
#'''E6''' - LVDS display connector '''P11''' power source selection.
#'''E7''' - Control of USB interface accessibility through either '''P26''' USB2.0 connector or '''P6''' and '''P16'''.
#'''E8''' - RTC coin cell connection
</blockquote>

'''More Details:''' <!-- ''[[SB-SOM:_Jumpers:_E1|Jumper E1]]'', ''[[SB-SOM:_Jumpers:_E2|Jumper E2]]'', ''[[SB-SOM:_Jumpers:_E3|Jumper E3]]'', ''[[SB-SOM:_Jumpers:_E4|Jumper E4]]'', ''[[SB-SOM:_Jumpers:_E5_and_E6|Jumper E5]]'', ''[[SB-SOM:_Jumpers:_E5_and_E6|Jumper E6]]'', ''[[SB-SOM:_Jumpers:_E7|Jumper E7]]'', ''[[SB-SOM:_Jumpers:_E8|Jumper E8]]'', --> ''[[SB-SOM:_Connectors:_P11|Connector P11]]'', ''[[SB-SOM:_Connectors:_P6|Connector P6]]'', ''[[SB-SOM:_Connectors:_P16|Connector P16]]'', ''[[SB-SOM:_Connectors:_P26|Connector P26]]''<!--, ''[[Board specific data EEPROM|Board specific data EEPROM]]''-->.

[[Category:SB-SOM]]
[[Category:CL-SOM-iMX7]]