Android Test and Driver

Android Test Application

Test Item	Description
LCD	Check colors, dead pixels, and display issues
Touchscreen	Check 5-point capacitive touch and coordinates
LED	Check four LEDs
Buzzer	Check active buzzer
Backlight	Check brightness adjustment
Keys	Check Return, Volume, Menu, Power, Reset
Battery	Check battery and PMU state
DAC / ADC	Check ADC sampling
G-sensor	Check gravity sensor
Audio	Check speaker, headphone, MIC, recording and playback
Camera	Check parallel, MIPI, or USB camera
Wi-Fi	Check Wi-Fi scanning and connection
Network	Check Ethernet or Wi-Fi network
UART	TX/RX loopback or UART cross-test
External storage	Check TF card
USB disk	Check USB storage

Android Kernel Drivers

The manual lists the following driver sections:

• LED driver.
• Kernel heartbeat monitor driver.
• G-sensor driver.
• Capacitive touchscreen driver.
• LCD driver.
• Key driver.
• USB Wi-Fi driver.
• VGA driver.
• HDMI driver.
• proc filesystem.

proc Queries

cat /proc/cmdline
cat /proc/cpuinfo
cat /proc/meminfo
cat /proc/partitions
cat /proc/version
ifconfig
dmesg

Android Practical Projects

The manual includes:

• Create a hello x6818 project.
• Run hello x6818 on the board.
• Write an LED test program from scratch.
• Create the first APK and call low-level drivers through JNI + NDK.
• Modify VGA resolution.
• Modify init.rc.
• Modify boot animation.
• Modify U-Boot boot logo.
• Modify kernel logo.
• Use Git for source control.
• Package the whole Android BSP.
• Use the mm command for partial build.
• Configure minicom on Ubuntu.