3.1.9 4G Mobile Phone Network......................................................................................... 21
3.1.10 Ethernet.......................................................................................................................21
3.1.11 Sound Card.................................................................................................................21
3.2 LinuxSystem (Yocto2.2)......................................................................................................... 22
3.2.1 System Burning and Writing.......................................................................................22
3.2.2 HDMI..............................................................................................................................25
3.2.3 LVDS..............................................................................................................................25
3.2.4 USB................................................................................................................................25
3.2.5 COM...............................................................................................................................26
3.2.6 TF Card......................................................................................................................... 26
3.2.7 WIFI................................................................................................................................26
3.2.8 Bluetooth....................................................................................................................... 31
3.2.9 4G Mobile Phone Network......................................................................................... 31
3.2.10 Ethernet.......................................................................................................................33
3.2.11 Sound Card.................................................................................................................34
3.2.12 View default preset applications and lib libraries in yocto system.....................35
3.2.13 yocto System Application Software Development sdk Installation.................... 35
3.2.14 Construction of QT Development Environment.................................................... 36
3.2.15 Demo demonstration of the system's own demo program................................. 41
3.2.16 Control of GPIO......................................................................................................... 42
3.2.17 4K Video Play.............................................................................................................42
Appendix
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21
Appendix 1:Glossary
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21