Kontron COMe-cP2020 - Manual (Page 4)

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COMe-P2020 User Guide
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4.3 Supply Voltage Ripple ........................................................................................ 74
4.4 Power Consumption........................................................................................... 74
5 Thermal.................................................................................................................... 76
5.1 Cooling Solution COMe-cP2020c.......................................................................... 76
5.2 Cooling Solution COMe-cP2020i ........................................................................... 77
6 U-Boot..................................................................................................................... 78
6.1 Introduction to U-Boot ...................................................................................... 78
6.2 Standard U-Boot Commands ............................................................................... 78
6.3 Kontron-Specific Commands ............................................................................... 81
6.4 U-Boot Access and Startup.................................................................................. 90
6.5 Working with U-Boot ......................................................................................... 90
6.5.1 General Operation ........................................................................................ 90
6.5.2 Using the sconf Command .............................................................................. 90
6.5.3 Examples of sconf Command Usage .................................................................. 91
6.5.4 Using the Network ........................................................................................ 94
6.5.5 Using SD Cards............................................................................................. 95
6.5.6 Using USB Devices ........................................................................................ 95
6.5.7 Using the Onboard NAND Flash........................................................................ 96
6.5.8 Using the SPI Flash for OS .............................................................................. 97
6.5.9 Booting an OS.............................................................................................. 97
6.6 Getting Help .................................................................................................... 99
6.7 Update ........................................................................................................... 99
6.8 Recovery Mechanism ........................................................................................ 100
6.9 Copyrights and Licensing................................................................................... 100
6.10 Obtaining Source Code...................................................................................... 104
7 Installation.............................................................................................................. 105
7.1 Safety............................................................................................................ 105
7.2 General Instructions on Usage............................................................................ 105
7.3 COM Express Module-to-Carrier Assembly Considerations ......................................... 105