#README
1.Expand the filesystem
sudo raspi-config
2.Change fb0 to fb1
sudo nano /usr/share/X11/xorg.conf.d/99-fbturbo.conf
3.Enable SPI if needed
# remove or comment out the spi blacklist line
sudo nano /etc/modprobe.d/raspi-blacklist.conf
4.FBTFT drivers as loadable modules
sudo REPO_URI=https://github.com/notro/rpi-firmware rpi-update
sudo reboot
5.Test (After second command, screen is not white anymore)
sudo modprobe flexfb width=320 height=480 regwidth=16 init=-1,0xb0,0x0,-1,0x11,-2,250,-1,0x3A,0x55,-1,0xC2,0x44,-1,0xC5,0x00,0x00,0x00,0x00,-1,0xE0,0x0F,0x1F,0x1C,0x0C,0x0F,0x08,0x48,0x98,0x37,0x0A,0x13,0x04,0x11,0x0D,0x00,-1,0xE1,0x0F,0x32,0x2E,0x0B,0x0D,0x05,0x47,0x75,0x37,0x06,0x10,0x03,0x24,0x20,0x00,-1,0xE2,0x0F,0x32,0x2E,0x0B,0x0D,0x05,0x47,0x75,0x37,0x06,0x10,0x03,0x24,0x20,0x00,-1,0x36,0x28,-1,0x11,-1,0x29,-3
sudo modprobe fbtft_device debug=3 rotate=90 name=flexfb speed=16000000 gpios=reset:25,dc:24
6.Perminantly add Driver
#Add to file /etc/modules
flexfb width=320 height=480 regwidth=16 init=-1,0xb0,0x0,-1,0x11,-2,250,-1,0x3A,0x55,-1,0xC2,0x44,-1,0xC5,0x00,0x00,0x00,0x00,-1,0xE0,0x0F,0x1F,0x1C,0x0C,0x0F,0x08,0x48,0x98,0x37,0x0A,0x13,0x04,0x11,0x0D,0x00,-1,0xE1,0x0F,0x32,0x2E,0x0B,0x0D,0x05,0x47,0x75,0x37,0x06,0x10,0x03,0x24,0x20,0x00,-1,0xE2,0x0F,0x32,0x2E,0x0B,0x0D,0x05,0x47,0x75,0x37,0x06,0x10,0x03,0x24,0x20,0x00,-1,0x36,0x28,-1,0x11,-1,0x29,-3
fbtft_device debug=3 rotate=90 name=flexfb speed=16000000 gpios=reset:25,dc:24
7.Additional settings
#/boot/config.txt
gpu_mem=128
#/boot/cmdline.txt
fbcon=map:1 fbcon=font:ProFont6x11
- Install libraries
sudo apt-get -y install xinput evtest libts-bin
- Add device to /etc/modules
ads7846_device model=7846 cs=1 gpio_pendown=17 keep_vref_on=1 swap_xy=0 pressure_max=255 x_plate_ohms=60 x_min=200 x_max=3900 y_min=200 y_max=3900
- Get calibration parameters
wget http://adafruit-download.s3.amazonaws.com/xinput-calibrator_0.7.5-1_armhf.deb
sudo dpkg -i -B xinput-calibrator_0.7.5-1_armhf.deb
sudo rm /usr/share/X11/xorg.conf.d/99-calibration.conf
sudo reboot
After reboot type startx and open xterminal then run the calibration tool
DISPLAY=:0.0 xinput_calibrator
Edit 99-calibration using the new parameters, e.g.
Section "InputClass"
Identifier "calibration"
MatchProduct "ADS7846 Touchscreen"
Option "Calibration" "3873 272 236 3868"
Option "SwapAxes" "1"
EndSection
##Installing onscreen keyboard
- Download and install the debian package (do not get from repos)
wget http://ftp.us.debian.org/debian/pool/main/m/matchbox-keyboard/matchbox-
keyboard_0.1+svn20080916-9+b1_armhf.deb
- Create a toogle script to avoid multiple instances
#!/bin/bash
PID=$(pidof matchbox-keyboard)
if [ ! -e $PID ]; then
killall matchbox-keyboard
else
matchbox-keyboard -s 80 extended&
fi
$ sudo chmod +x /usr/bin/toggle-matchbox-keyboard.sh
buggy in Openbox
- Auto-login: edit
$ sudo nano /etc/inittabas shown
#1:2345:respawn:/sbin/getty --noclear 38400 tty1
1:2345:respawn:/bin/login -f pi tty </dev/tty1 >/dev/tty1 2>&1
- Startx by default
Add the following lines before exit 0 in /etc/rc.local
echo -e '[NOTICE] Press any key NOW to cancel startx...'
read -n 1 -t 3 ANY_KEY
if [ "$ANY_KEY" == "" ]; then
su -l pi -c startx
else
echo -e '[NOTICE] startx stopped'
fi
[1] notro/fbtft#215
[2] http://ozzmaker.com/2014/06/30/virtual-keyboard-for-the-raspberry-pi/
[3] http://www.raspberrypi.org/forums/viewtopic.php?f=66&t=14719
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