
www.kontron.com
4
User Guide
COMe-bP5020
5 Thermal ........................................................................................................................... 45
5.1 Heatspreader .................................................................................................................... 45
5.2 Cooling Considerations ........................................................................................................ 45
6 U-Boot ............................................................................................................................ 47
6.1 Introduction to U-Boot ........................................................................................................ 47
6.2 Standard U-Boot Commands .................................................................................................. 47
6.3 Kontron-Specific Commands ................................................................................................. 49
6.4 U-Boot Access and Startup ................................................................................................... 56
6.5 Working with U-Boot ........................................................................................................... 56
6.5.1 General Operation .............................................................................................................. 56
6.5.2 Using the sconf Command .................................................................................................... 56
6.5.3 Examples of sconf Command Usage ......................................................................................... 57
6.5.3.1 sconf select ...................................................................................................................... 57
6.5.3.2 sconf set .......................................................................................................................... 57
6.5.4 Using the Network .............................................................................................................. 58
6.5.4.1 Interface Selection ............................................................................................................. 58
6.5.4.1.1 ethprime .......................................................................................................................... 58
6.5.4.1.2 ethact ............................................................................................................................. 59
6.5.4.1.3 ethrotate ......................................................................................................................... 59
6.5.4.2 Contacting the Server ......................................................................................................... 59
6.5.5 Using SD Cards .................................................................................................................. 59
6.5.6 Using SATA Devices ............................................................................................................. 60
6.5.7 Using USB Devices .............................................................................................................. 60
6.5.8 Using the Onboard NAND Flash .............................................................................................. 61
6.5.9 Using the SPI Flash for OS .................................................................................................... 61
6.5.10 Booting an OS ................................................................................................................... 62
6.5.10.1 Booting Linux ................................................................................................................... 62
6.5.10.2 Booting VxWorks ELF Images ................................................................................................. 62
6.6 Getting Help ..................................................................................................................... 63
6.7 Update ............................................................................................................................ 63
6.8 Recovery Mechanism ........................................................................................................... 64
6.9 Copyrights and Licensing ..................................................................................................... 65
6.10 Obtaining Source Code ........................................................................................................ 68
7 Installation ...................................................................................................................... 69
7.1 Safety ............................................................................................................................. 69
7.2 General Instructions on Usage ............................................................................................... 69
7.3 COM Express® Module-to-Carrier Assembly Considerations ........................................................... 69
Appendix ......................................................................................................................... 70
1 Warranty .......................................................................................................................... 70
2 Proprietary Note ................................................................................................................ 70
3 Trademarks ....................................................................................................................... 70
4 Environmental Protection Statement ....................................................................................... 70
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