3. Compile Source

Step 1, unzip source

tar zxvf em3288_mid_android-7.1.tar.gz

Step 2, compile uboot

make rk3288_secure_defconfig
./mkv7.sh

Step 3, compile kernel

cd em3288_mid_android-7.1/kernel
make ARCH=arm rockchip_defconfig
make ARCH=arm rk3288-evb-android-act8846-lvds.img

kernel.img and resource.img are generated in in current directory.

Step 4, compile Android

cd ..
source build/envsetup.sh
lunch

Choose rk3288-userdebug

make -j8

Step 5, generated image file

./mkimage.sh
cd rockdev/Image-rk3288
ls

Images are generated in current directory.