
range Pi 用户手册 深圳市迅龙软件有限公司版权所有
5.18. 13pin interface GPIO, I2C, UART test...........................................................................85
5.18.1. 13pin GPIO port test............................................................................ 86
5.18.2. 13pin I2C test.......................................................................................87
5.18.3. 13pin UART test.................................................................................. 89
5.19. Method of outputting kernel print information to 13pin serial port................................91
5.20. View the serial number of the RK3328 chip...................................................................92
5.21. Method to restart the system...........................................................................................93
6. Linux SDK instructions................................................................................................. 93
6.1. Get the source code of linux sdk.......................................................................................94
6.1.1. Download orangepi-build from github.................................................. 94
6.1.2. Download cross compilation toolchain..................................................94
6.1.3. Orangepi-build complete directory structure description...................... 96
6.2. Compile u-boot................................................................................................................. 97
6.3. Compile the Linux kernel............................................................................................... 101
6.4. Compile rootfs.................................................................................................................106
6.5. Compile linux image.......................................................................................................109
7. Android OS instructions...............................................................................................112
7.1. Supported Android version............................................................................................. 112
7.2. Android 9.0 function adaptation situation.......................................................................112
7.3. Onboard LED light display description.......................................................................... 112
7.4. How to use ADB............................................................................................................. 113
7.4.1. Open USB debugging option............................................................... 113
7.4.2. Use network connection adb debugging.............................................. 114
7.4.3. Use data cable to connect adb for debugging.......................................115
8. Android SDK instructions............................................................................................116
8.1. Download the source code of Android SDK...................................................................116
8.2. Build Android compilation environment........................................................................ 117
8.3. Compile Android image..................................................................................................118
8.3.1. Compile u-boot.....................................................................................118