add IRQ support
touch screen support
enable vic and touch_test
test irq
Merge branch 'irq', remote-tracking branch 'origin/irq' into irq
fix irq
fix typo in vic1
paint when touch the screen
include some lib for div ,stdio etc
.gitignore add *.a
Merge branch 'irq', remote-tracking branch 'origin/irq' into irq
pwm support for lcd backlight
now we could turn up and down backlight
fix typo