Differences

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--- en:spi_lcdshiled [2016/06/20 11:58]
john1117 [X Calibration]
+++ en:spi_lcdshiled [2016/12/21 17:02] (current)
john1117 [Advanced Usages]
@@ Line 7: / Line 7: @@
 [[http://www.hardkernel.com/main/products/prdt_info.php?g_code=G142060963922|Where to buy]]
-===== Specifications =====
+====== Specifications ======
 |LCD Type|TFT|
 |LCD Interface|SPI|
@@ Line 18: / Line 18: @@
 |Weight|44gram|
-===== Pin Map =====
+====== Pin Map ======
 ^Pin Num^Symbol^Description^
 |1, 17|3.3V|Power positive (3.3V power input)|
@@ Line 35: / Line 35: @@
 |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-XU4 =====
+====== How to activate the 3.2inch LCD shield with your ODROID-XU4 ======
 You need a HDMI connection or a Serial console connection to follow below instruction.
 <WRAP center round important 100%>
 To use the SPI, you first need to update the kernel version to "3.10.83" or higher.
   sudo apt-get update && sudo apt-get dist-upgrade
+"ads7846" module driver must be in the output of "lsmod" command.
 </WRAP>
-==== Coinfiguring framebuffer ====
+==== How to enable driver (Only Ubuntu 16.04 or higher is required) ====
+Edit /etc/modprobe.d/blacklist-odroid.conf to comment out following three ines.
+<code>
+blacklist spidev
+blacklist spi_s3c64xx
+blacklist ads7846
+</code>
+Reboot.
+  reboot
+Check your SPI node.
+  ls /dev/spidev*
+===== Configuring framebuffer =====
 **0. Update your Kernel**
 <code>
@@ Line 61: / Line 76: @@
   fb_ili9340
-==== Run Xwindow ====
+===== Run Xwindow =====
+{{:en:32tft:xorg.png?300|}}
 **0. Insert modules**
@@ Line 78: / Line 95: @@
 </code>
-**2. Reboot**
+**2. Run**
-  reboot
-**3. Run**
   /etc/init.d/lightdm start
-==== Run Console ====
+===== Run Console =====
 **0. Insert modules**
@@ Line 97: / Line 112: @@
 There will be a login screen on the LCD screen.
-==== X Calibration ====
+===== Touch Calibration =====
+{{:en:32tft:cal.png?300|}}
+<WRAP center round important 100%>
+To use the Touch Calibration, you first need to update the kernel version to "3.10.96-86" or higher.
+  sudo apt-get update && sudo apt-get dist-upgrade
+</WRAP>
 **0. The xinput-calibrator pakage download**
   sudo apt-get install xinput-calibrator
 **1. Remove old calibration data.**
   sudo rm /etc/X11/xorg.conf.d/99-calibration.conf
+**2. Login**
+You need a login to get DISPLAY.\\
+If you want auto login.\\
+Edit /etc/lightdm/lightdm.conf file to enable auto-login: (password: odroid)
+<code>
+odroid@odroid:~$ sudo vi /etc/lightdm/lightdm.conf
+[sudo] password for odroid:
+odroid@odroid:~$ cat /etc/lightdm/lightdm.conf
+[SeatDefaults]
+autologin-user=odroid
+autologin-user-timeout=0
+odroid@odroid:~$
+</code>
+**3. Check your DISPLAY**
+  odroid@odroid:~$ w
+:13:31 up 35 min,  2 users,  load average: 0.09, 0.08, 0.12
+  USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
+  odroid   ttySAC2                   08:42    2.00s  0.75s  0.02s w
+  odroid   :0       :0               05:39   ?xdm?   1:15   0.63s mate-session
+  odroid@odroid:~$
-**2. Run calibrator**
+**4. Run calibrator**
-You need to check DISPLAY=:N.0
+  sudo DISPLAY=:0 xinput_calibrator
-  sudo FRAMEBUFFER=/dev/fb2 startx &
-  sudo DISPLAY=:0.0 xinput_calibrator
 Follow the directions on your screen.\\
@@ Line 119: / Line 166: @@
   sudo vi /etc/X11/xorg.conf.d/99-calibration.conf
-**3. Reboot**
+**5. Reboot**
   sudo reboot
+====== Advanced Usages ======
+  * [[en:spi_lcdshiled:autoconsole|Automatically start console mode]]
+  * [[en:spi_lcdshiled:autox|Automatically start desktop GUI mode]]