I-Tech YMBAO100, User Manual

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2.5.12 I
2
C Connector (P26) ............................................................22
Chapter 3 Software Setup ................................................... 23
3.1 Make a Recovery SD Card ................................................................24
3.1.1 Preparing the Recovery SD Card to Install Linux / Android
Image into eMMC .................................................................24
3.1.2 Upgrade Firmware through the Recovery SD Card ...............26
3.2 Display Parameter Setting in Kernel ..................................................27
Chapter 4 BSP Source Guide .............................................. 28
4.1 Preparation ........................................................................................29
4.2 Installing Toolchain ............................................................................29
4.3 Building U-Boot ..................................................................................29
4.4 Building Kernel...................................................................................29
4.5 Building RAMdisk Image (Optional) ...................................................30
4.6 Install Linux to SD Card .....................................................................30
4.7 Booting with Your SD Card ................................................................30
Appendix ........................................................................................ 31
A. How to Use GPIO in Linux .................................................................32
B. How to Use Watchdog in Linux ..........................................................32
C. eMMC Test ........................................................................................33
D. USB (flash disk) Test .........................................................................34
E. SD Card Test .....................................................................................35
F. RS-232 Test ......................................................................................36
G. RS-485 Test ......................................................................................37
H. Audio Test .........................................................................................37
I. Ethernet Test .....................................................................................38
J. LVDS Test .........................................................................................39
K. HDMI Test .........................................................................................40
L. SATA (hard disk) Test .......................................................................41
M. CAN Test ...........................................................................................42
N. 3G Test ..............................................................................................43
O. Onboard Connector Types .................................................................44