Table of Contents
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Table of Contents
Symbols ................................................................................................................................................................................................................. 6
Table of Contents ............................................................................................................................................................................................... 9
List of Tables ...................................................................................................................................................................................................... 10
List of Figures .................................................................................................................................................................................................... 10
1/
Introduction ........................................................................................................................................................................................... 11
2/
Description ............................................................................................................................................................................................ 12
2.1. SMARC™ Computer-on-Modules ........................................................................................................................................................ 12
2.2. Main characteristics ................................................................................................................................................................................ 13
2.3. Product Variants and Accessories ...................................................................................................................................................... 13
2.4. SMARC-sAMX8X Feature Set ............................................................................................................................................................... 14
3/
System Specifications ....................................................................................................................................................................... 15
3.1. Component Main Data ............................................................................................................................................................................. 15
3.2. Environmental Conditions ..................................................................................................................................................................... 16
3.3. Functional Block Diagram ...................................................................................................................................................................... 18
4/
Board and Connectors ...................................................................................................................................................................... 19
4.1.1. Connectors ............................................................................................................................................................................................... 19
4.2. Mainboard view and I/O locations ..................................................................................................................................................... 19
4.3. Bottom Side ............................................................................................................................................................................................... 20
4.4. Mechanical Drawings ............................................................................................................................................................................. 21
4.5. Thermal Considerations ........................................................................................................................................................................ 22
5/
Pin Definitions ..................................................................................................................................................................................... 23
5.1. Processor Support ................................................................................................................................................................................... 23
5.2. System Memory Support ...................................................................................................................................................................... 23
5.3. eMMC Flash Memory.............................................................................................................................................................................. 24
5.4. SMARC Connector.................................................................................................................................................................................... 24
5.5. Pinout of SMARC sAMX8X Connector ............................................................................................................................................... 25
5.5.1. Pinout of SMARC sAMX8X Topside Connector ............................................................................................................................ 25
5.5.2. Pinout of SMARC sAMX8X Bottom Side Connector................................................................................................................... 28
6/
Installation ........................................................................................................................................................................................... 34
6.1. Boot Process .............................................................................................................................................................................................. 34
6.2. PCIe Switch options ................................................................................................................................................................................ 34
6.3. Configurable Watchdog......................................................................................................................................................................... 35
6.4. RTC Current Consumption .................................................................................................................................................................... 36
6.5. UART Interfaces ....................................................................................................................................................................................... 36
6.6. Power Control ........................................................................................................................................................................................... 37
6.6.1. Power Supply ......................................................................................................................................................................................... 37
6.6.2. Power Button (POWER_BTN#)........................................................................................................................................................ 37
6.6.3. Power Bad Signal (VIN_POWER_BAD#) ....................................................................................................................................... 37
6.6.4. Reset Button (RESET_IN#) ............................................................................................................................................................... 37
7/
Bootloader Operation....................................................................................................................................................................... 38
7.1. Copyrights and Licensing of U-Boot .................................................................................................................................................. 38
7.2. Bootloader Quickstart ............................................................................................................................................................................ 38
7.3. Bootloader Commands .......................................................................................................................................................................... 39
7.4. Kontron Bootloader Command Extensions .................................................................................................................................... 39
7.4.1. kboardinfo - Kontron Board Information ...................................................................................................................................... 40
7.4.2. md5sum - MD5 Message Digest .................................................................................................................................................... 40
7.4.3. Watchdog - CPU Watchdog Control ............................................................................................................................................... 41
7.5. Bootloader Environment ........................................................................................................................................................................ 41
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SMARC-sAMX8X User Guide. Rev. 1.1
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