View source for MCM-iMX8M-Mini: Evaluation Kit: Hardware Guide

=Overview= 
==Terms and Definitions==
*'''SoM''' – System-on-Module.<br>
*'''SBC''' – Single Board Computer.<br>
*'''MCM-iMX8M-Mini''' – System-on-module product based on the iMX8M Mini SoC. More information [https://www.compulab.com/products/computer-on-modules/mcm-imx8m-mini-nxp-i-mx-8m-mini-solder-down-som-system-on-module/ here].<br> 
*'''SB-MCMIMX8M''' – A carrier board, intended for evaluation and development with MCM-iMX8M-Mini.
*'''Evaluation kit''' – A combination of MCM-iMX8M-Mini SoM and SB-MCMIMX8M carrier-board accompanied by a set of accessories. More information [https://www.compulab.com/products/computer-on-modules/mcm-imx8m-mini-nxp-i-mx-8m-mini-solder-down-som-system-on-module/#evalkit here].<br> 

==Additional resources==
*All additional materials for MCM-iMX8M-Mini and SB-MCMIMX8M are available [https://www.compulab.com/products/computer-on-modules/mcm-imx8m-mini-nxp-i-mx-8m-mini-solder-down-som-system-on-module/#devres here].<br>

=Connector Locations=
[[Image:SB-MCMIMX8M connector locations.jpg|frameless|top|800px|link=]]

=Interfaces and Functions=
==DC Power==
SB-MCMIMX8M main power is provided with 12V DC power supply. Adapters for European AC and US AC outlets are included. Connect the PSU to connector '''J2''' before turning on the device.

==Serial Console==
To start using serial console connect your host PC to the micro-USB connector '''P13''' with the USB cable (included in the evaluation kit).<br>

==USB==
SB-MCMIMX8M features two USB2.0 ports that are derived directly from the iMX8M-Mini USB subsystem.<br>
*Connector '''P17''' – USB2.0 OTG, micro-USB connector;<br>
*Connector '''J3''' – USB2.0 host, type-A connector.<br>

==Ethernet==
SB-MCMIMX8M features one Ethernet port available via RJ45 connector '''P6'''.

==CAN bus==
SB-MCMIMX8M implements CAN bus interface with MCP2518FD controller. CAN interface is routed to RJ11 connector '''P14'''.<br>

==RS485==
SB-MCMIMX8M implements RS485 interface with MAX3491E transceiver. RS485 interface is routed to RJ11 connector '''P47'''.<br>

==PCI-Express==
Plug your PCI-Express device into the SB-MCMIMX8M mini-PCIe connector '''P11'''. Full and half size mini-PCIe modules are supported.

==Audio==
SB-MCMIMX8M features '''analog''' stereo output (implemented with the WM8731L audio codec) and '''digital''' S/PDIF input/output. Both are accessible via the following 3.5mm jacks:<br>
*'''P3''' – Microphone IN;<br>
*'''P4''' – Audio IN;<br>
*'''P5''' – Audio OUT.<br>

==Wireless==
===WiFi/Bluetooth===
WiFi and Bluetooth are implemented on SB-MCMIMX8M with Laird Sterling-LWB5 module interfaced with MCM-iMX8M-Mini via SDIO and UART interfaces.</br>
For WiFi or Bluetooth operation connect the WiFI/BT antenna (included in the evaluation kit) to antenna connector '''J4'''.

===Cellular===
USB and/or PCI-express interfaced cellular modems (2G/3G/4G etc.) can be plugged into mini-PCIe socket P11. For modem operation:
* Insert the cellular modem into socket '''P11'''.
* Insert the SIM card to socket '''P12''' on the bottom side of the board.
* Make sure that jumper '''E14''' is removed (to route the USB interface to the mini-PCIe socket).

==Display==
The MCM-iMX8M-Mini evaluation kit contains Startec KD050HDFIA020 5" TFT panel with capacitive touch panel. 
===LCD===
To enable the display connect the LCD data cable to connector '''P22'''.
===Touch panel===
To enable the touch-panel connect the touch-panel cable to connector '''P45'''.

==Camera==
The MCM-iMX8M-Mini evaluation kit is compatible with the LI-OV5640 camera module.
To start using the camera module connect the module to connector '''P8'''.

==Multi functional signals access==
===UART===
UART interface is available via header '''P20'''.<br>
Please refer to MCM-iMX8M-Mini reference guide and SB-MCMIMX8M schematics for details.

===SPI===
SPI interface is available via header '''P20'''.<br>
Please refer to MCM-iMX8M-Mini reference guide and SB-MCMIMX8M schematics for details.

===I2C===
I2C interface is available via header '''P20'''.<br>
Please refer to MCM-iMX8M-Mini reference guide and SB-MCMIMX8M schematics for details.

===GPIO===
GPIO signals are available via header '''P20'''.<br>
Please refer to MCM-iMX8M-Mini reference guide and SB-MCMIMX8M schematics for details.

==System==
===Reset===
Pressing the reset button '''SW8''' triggers SBC-iMX8M-Mini cold reset.
===Boot Sequence Selection===
Pressing and holding the alt-boot button '''SW9''' during power-up or cold reset forces UCM-iMX8M-Mini to boot from SD card.
===Power ON / OFF===
Pressing the Power On button '''SW10''' shuts down the device.
===RTC===
For RTC operation make sure that a charged battery is present in socket '''BH1''' and that jumper '''E6''' is populated.

=Jumpers Summary=

'''Jumpers:'''<br>
*'''E7''', '''E8''' – Can be used for the SOM current measurement.<br>
*'''E6''' – Must be populated for RTC operation.<br>
*'''E11''' – When populated EEPROM is write protected.<br>
*'''E14''' – Controls USB multiplexing. When '''E14''' is populated USB interface is routed to USB connector '''J3'''. When '''E14''' is not populated USB interface is routed to mini-PCIe connector '''P11'''.<br>
*'''E4''' – When populated debug console routing is forced to micro-USB connector '''P13'''. When not populated debug console routing is controlled by auto-detection of USB cable.<br>
*'''E1''', '''E2''', '''E3''', '''E12''', '''E15''' - production jumpers; not needed for evaluation.

'''Default state:'''<br>
*Jumpers '''E9''', and '''E14''' are populated;<br>
*Jumpers '''E1''', '''E4''', '''E7''', '''E8''', '''E11''', '''E12''' and '''E15''' are removed.<br>

[[Category:MCM-iMX8M-Mini]]