View source for CM-T43: 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 CM-T43 & SB-SOM boards accompanied by a set of accessories detailed [http://www.compulab.co.il/products/computer-on-modules/cm-t43/#evalkit here]
|-
| CM-T43
| A system-on-module product described [http://www.compulab.co.il/products/computer-on-modules/cm-t43/#specs here]
|-
| SB-SOM
| A generic carrier board designed to support several ARM evaluation kits from Compulab. 
|-
| SB-SOM-T43
| SB-SOM board assembly compatible with CM-T43 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-T43. 

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/cm-t43/#devres here]

=== Additional resources ===
*[[CM-T43: Evaluation Kit: Getting Started | Getting started with CM-T43 evaluation kit]]

*[[CM-T43 TI AM437x Linux|CM-T43 Linux guide]]

*[[CM-T43 TI AM437x Yocto Linux|CM-T43 Yocto guide]]

*[http://www.compulab.co.il/products/computer-on-modules/cm-t43/#devres CM-T43 development resources]
</blockquote>

= Carrier Board =
'''NOTE:''' The drawing represents a generic SB-SOM board. Some connectors might not be populated in CM-T43 evaluation kit.

[[Image:SB_SOM_topview2.jpg|alt=SB-SOM top view|<div align="center">SB-SOM top view</div>]] 

[[Image:SB_SOM_bottomview2.jpg|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 <!-- [[SB-SOM:_Connectors:_J6_and_J8|J6]] --> '''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 <!-- [[SB-SOM:_Connectors:_J6_and_J8|J6]] --> '''J6'''.

===Option 2 - Li-Poly Battery ===
Battery powered operation of the evaluation kit is supported through the main battery connector <!-- [[SB-SOM:_Connectors:_P19|P19]] --> '''P19'''.
The evaluation kit is shipped with an accessory battery adapter allowing <!-- [[SB-SOM:_Connectors:_P19|P19]] --> '''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 <!-- [[SB-SOM:_LEDS:_DS1|DS1 LED]] --> '''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-T43 on-board battery charger (U25 in SB-SOM schematics) and charging supervisor (U24 in SB-SOM schematics).
</blockquote>
</blockquote>

== Serial Console ==
Serial console is available through one of the following interfaces:
* Serial over USB using micro-USB2.0 Type-B <!-- [[SB-SOM:_Connectors:_P7|P7 connector]] --> '''P7''' connector. Continue to [[SB-SOM: HOWTO: USB Console|USB console guide]] for USB interface setup instructions.
* Serial over RS-232 using the <!-- [[SB-SOM:_Connectors:_P8|P8 connector]] --> '''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.

== USB ==
Both CM-T43 USB ports are accessible with this evaluation kit:
# CM-T43 USB Port 0 is available through the <!-- [[SB-SOM:_Connectors:_P3|OTG connector P3]] --> 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) allows usage of <!-- [[SB-SOM:_Connectors:_P3|connector P3]] --> 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.
# CM-T43 USB Port 1 is available through one of the following connectors, depending on the state of <!-- [[SB-SOM:_Jumpers:_E7|jumper E7]] --> jumper '''E7'''.
#* <!-- [[SB-SOM:_Jumpers:_E7|E7]] --> '''E7''' <u>not</u> populated: Only Dual stacked USB2.0 <!-- [[SB-SOM:_Connectors:_P6|P6 connector]] --> '''P6''' connector and <!-- [[SB-SOM:_Connectors:_P16|P16 mini-PCI-express connector]] --> '''P16''' mini-PCI-express connector are enabled.
#* <!-- [[SB-SOM:_Jumpers:_E7|E7]] --> '''E7''' populated: Only <!-- [[SB-SOM:_Connectors:_P26|P26 USB2.0 connector]] --> '''P26''' USB2.0 connector is enabled.

== CAN ==
CAN bus nodes can be connected to evaluation kit <!-- [[SB-SOM:_Connectors:_P5|header P5]] --> header '''P5''' as described in [[SB-SOM:_HOWTO:_CAN_Connection|CAN hardware connection guide]].

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

<blockquote>
=== Primary Ethernet ===
The primary Ethernet port is available through <!-- [[SB-SOM:_Connectors:_P21|RJ45 connector P21]] --> RJ45 connector '''P21'''.

==== Secondary Ethernet ====
The secondary Ethernet port is available through <!-- [[SB-SOM:_Connectors:_P22|RJ45 connector P22]] --> RJ45 connector '''P22'''.
</blockquote>

== Wireless ==
<blockquote>
=== WiFi/Bluetooth ===
Connect both antennas (included with evaluation kit) to CM-T43 connectors J1 and J2 for WiFi and/or Bluetooth operation.
=== NFC ===
Connect your NFC antenna to CM-T43 connector J3 NFC antenna connector.
</blockquote>

== 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 [[CM-T43:_Linux:_Debian|CM-T43 linux demo image]].
Connect the LCD panel the evaluation kit through the FPC connector <!-- [[SB-SOM:_Connectors:_P10|P10]] --> '''P10'''.
<!--
* [[SB-SOM:_HOWTO:_LCD_Connection|LCD hardware connection guide]]
-->

=== DVI ===
The DVI display interface is accessible through the <!-- [[SB-SOM:_Connectors:_J5|HDMI connector J5]] --> HDMI connector '''J5'''.
<!--
* [[SB-SOM:_HOWTO:_DVI_Connection|DVI hardware connection guide]]
-->

=== LVDS ===
The LVDS display interface is accessible through evaluation kit <!-- [[SB-SOM:_Connectors:_P11|header P11]] --> header '''P11'''.
This header enables simple connection (with jumper wires) to any LVDS panel.
Please refer to SB-SOM schematics for detailed information on <!-- [[SB-SOM:_Connectors:_P11|header P11]] --> '''P11'''.
</blockquote>

== System ==
<blockquote>
=== Reset ===
Pressing the <!-- [[SB-SOM:_Buttons:_SW2|reset button (SW2)]] --> 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 CM-T43 reference guide.
* Pressing and holding the <!-- [[SB-SOM:_Buttons:_SW3|ALT.BOOT button (SW3)]] --> ALT.BOOT button ('''SW3''') during power-up or cold reset forces alternative boot sequence.
* Populating the <!-- [[SB-SOM:_Jumpers:_E1|E1 jumper]] --> '''E1''' jumper, constantly forces alternative boot sequence.
* Indication of selected boot sequence is shown with the <!--[[SB-SOM:_LEDS:_DS12|DS12 LED]] --> '''DS12''' LED.

=== Power ON / Cycle ===
* Pressing the <!-- [[SB-SOM:_Buttons:_SW1|PWRDn button (SW1)]] --> PWRDn button ('''SW1''') generates a wake/power-on request.
* Pressing and holding this button results in constant power-cycling of evaluation kit (8 seconds interval by default).

=== RTC ===
The evaluation kit RTC (implemented onboard CM-T43) is powered by a coin cell battery. RTC power can be disconnected by:
* Removing the coin cell battery.
* Removing <!-- [[SB-SOM:_Jumpers:_E8|jumper E8]] --> jumper '''E8'''.

To quickly discharge the RTC power, momentarily short pins 1 and 2 of <!-- [[SB-SOM:_Jumpers:_E8|jumper E8]] --> jumper '''E8'''.
</blockquote>

== Multi functional signals access ==
<blockquote>
===Camera===
Part of the CM-T43 camera interface signals are accessible through the evaluation kit <!-- [[SB-SOM:_Connectors:_P18|P18]] --> '''P18''' header.

Please refer to CM-T43 reference guide and SB-SOM schematics for details.

=== UART ===
CM-T43 UART interfaces are partially accessible through headers <!-- [[SB-SOM:_Connectors:_P4|P4]] --> '''P4''', <!-- [[SB-SOM:_Connectors:_P5|P5]] --> '''P5''' and <!-- [[SB-SOM:_Connectors:_P18|P18]] --> '''P18'''.

Please refer to CM-T43 reference guide and SB-SOM schematics for details.

=== SPI ===
CM-T43 SPI interface signals are partially accessible through headers <!-- [[SB-SOM:_Connectors:_P4|P4]] --> '''P4''', <!-- [[SB-SOM:_Connectors:_P5|P5]] --> '''P5''' and <!-- [[SB-SOM:_Connectors:_P18|P18]] --> '''P18'''.

Please refer to CM-T43 reference guide and SB-SOM schematics for details.

=== I2C ===
CM-T43 I2C interface signals are partially accessible through headers <!-- [[SB-SOM:_Connectors:_P4|P4]] --> '''P4''', <!-- [[SB-SOM:_Connectors:_P5|P5]] --> '''P5''' and <!-- [[SB-SOM:_Connectors:_P18|P18]] --> '''P18'''.

Please refer to CM-T43 reference guide and SB-SOM schematics for details.

=== GPIO ===
Some of the CM-T43 GPIO signals are accessible through headers <!-- [[SB-SOM:_Connectors:_P4|P4]] --> '''P4''', <!-- [[SB-SOM:_Connectors:_P5|P5]] --> '''P5''' and <!-- [[SB-SOM:_Connectors:_P18|P18]] --> '''P18'''.

Please refer to CM-T43 reference guide and SB-SOM schematics for details.
</blockquote>

[[Category:SB-SOM]]
[[Category:CM-T43]]

== Jumpers Summary ==
<blockquote>
#<!-- [[SB-SOM:_Jumpers:_E1|E1]] --> '''E1''' - Boot Sequence/Production.
#<!-- [[SB-SOM:_Jumpers:_E2|E2]] --> '''E2''' - CM-T43 onboard <!-- [[Board specific data EEPROM]] --> board specific data EEPROM write-protection.
#<!-- [[SB-SOM:_Jumpers:_E3|E3]] --> '''E3''' - <!-- [[SB-SOM: HOWTO: Console|Serial console interface]] --> Serial console interface auto detection.
#<!-- [[SB-SOM:_Jumpers:_E4|E4]] --> '''E4''' - SB-SOM <!-- [[Board specific data EEPROM]] --> board specific data EEPROM write-protection
#<!-- [[SB-SOM:_Jumpers:_E5_and_E6|E5]] --> '''E5''' - LVDS display <!-- [[SB-SOM:_Connectors:_P11|connector P11]] --> connector '''P11''' power source selection.
#<!-- [[SB-SOM:_Jumpers:_E5_and_E6|E6]] --> '''E6''' - LVDS display <!-- [[SB-SOM:_Connectors:_P11|connector P11]] --> connector '''P11''' power source selection.
#<!-- [[SB-SOM:_Jumpers:_E7|E7]] --> '''E7''' - Control of USB interface accessibility through either <!-- [[SB-SOM:_Connectors:_P26|P26 USB2.0 connector]] --> '''P26''' USB2.0 connector or <!-- [[SB-SOM:_Connectors:_P6|P6]] --> '''P6''', <!-- [[SB-SOM:_Connectors:_P16|P16]] --> '''P16''' and <!-- [[SB-SOM:_Connectors:_P20|P20]] --> '''P20''' connectors.
#<!-- [[SB-SOM:_Jumpers:_E8|E8]] --> '''E8''' - RTC coin cell connection
</blockquote>