This is an old revision of the document!
Table of Contents
Use to C-3.2inch TFT+Touchscreen Shield
Fully assembled 3.2inch display with 320×240 pixels TFT LCD and a resistive touch overlay. Just plug it on top of ODROID-C1. 2×13 tall female header is already soldered on the PCB.
Fast 30Mhz SPI is used for the faster frame rate.
You will need an official Ubuntu image to configure it. You can simply download the Kernel updates and configure your ODROID-C1 for this display shield.
Specifications
| LCD Type | TFT |
| LCD Interface | SPI |
| Touch Screen Type | Resistive |
| Touch Screen Controller | XPT2046 |
| Colors | 65536 |
| Backlight | LED |
| Resolution | 320*240(Pixel) |
| Aspect Ratio | 4:3 |
| Weight | 44gram |
Used pins
| Pin Num | Symbol | Description |
|---|---|---|
| 1, 17 | 3.3V | Power positive (3.3V power input) |
| 2, 4 | 5V | Power positive (5V power input) |
| 3, 5, 7, 8, 10, 22 | NC | No connection |
| 6, 9, 14, 20, 25 | GND | Ground |
| 11 | TP_IRQ | Touch screen interrupt, low level while the touch screen detects touching |
| 12 | KEY1 | Export GPIO#87, Wiring Pi GPIO#1 |
| 13 | RST | Reset, Export GPIO#116 |
| 15 | LCD_RS | LCD instruction control, Instruction/Data Register selection, Export GPIO#115 |
| 16 | KEY2 | Export GPIO#104, Wiring Pi GPIO#4 |
| 18 | KEY3 | Export GPIO#102, Wiring Pi GPIO#5 |
| 19 | LCD_SI/TP_SI | SPI data input of LCD/touch screen |
| 21 | LCD_SO/TP_SO | SPI data output of LCD/touch screen |
| 23 | LCD_SCK/TP_SCK | SPI clock of LCD/touch screen |
| 24 | LCD_CS | LCD chip selection, low active |
| 26 | TP_CS | Touch screen chip selection, low active |
How to activate the 3.2inch LCD shield with your ODROID-C1
You need a HDMI connection or a Serial console connection to follow below instruction.
0. Update your Kernel
sudo apt-get update sudo apt-get upgrade sudo apt-get dist-upgrade
1. Insert modules
sudo modprobe spicc sudo modprobe fbtft_device name=odroidc_tft32 rotate=270 gpios=reset:116,dc:115 speed=32000000 cs=0
2. To run Xwindow create a file "/usr/share/X11/xorg.conf.d/99-odroidc-tftlcd.conf"
And then, write following contents in that file.
Section "Device"
Identifier "C1 fbdev"
Driver "fbdev"
Option "fbdev" "/dev/fb2"
EndSection
3. startx
startx
4. console
Disable xorg on your ODROID-BOARD
There is two ways to disable.
1) Way to use the odroid-utility
sudo odroid-utility
Use up / down cursor keys to select the “Xorg On/Off” menu option and hit. And then, select “Disable Xorg”.
2) Way to use native
Write a word “manual” into /etc/init/lightdm.override
sudo vi /etc/init/lightdm.override
Reboot
sudo reboot
Run con2fbmap “con2fbmap <console> <framebuffer>“
sudo apt-get install fbset con2fbmap 1 2
