啟稿: 2018/04/18
完稿: 2018/04/19
Raspberry Pi派對PiRTY
LCD Test 01 : 3.5inch LCD for Retropie
LCD螢幕測試:3.5英吋LCD應用在Retropie
測試需求
可以支援樹莓派Framebuffer TFT LCD在專屬網站有介紹,相關資訊可以參考Raspberry GitHub:
https://github.com/notro/fbtft
使用Raspberry Pi常常需要顯示螢幕,最常見的就是與它一樣大小的3.5英吋的LCD螢幕,本測試就選用Waveshare微雪3.5inch RPi LCD應用在Retropie作業系統下的安裝,因為它在軟體安裝有優勢,因為它在Linux上有提供驅動程式的,如此在Raspbian、Retropie、Ubuntu架設起來就會比較容易。
基本知識
測試Waveshare微雪3.5inch RPi LCD需要對樹莓派硬體與軟體有基本的知識如下:
- 硬體方面:
- LCD畫面輸出:在此要用Framebuffer TFT LCD,所以要有可支援樹莓派TFT LCD display的知識。
- 軟體方面:
- Retripie Framebuffer TFT LCD驅動程式安裝
材料與工具
需要如下所列的材料:
- Raspberry Pi 2/3 B+ x1
- Waveshare微雪3.5inch RPi LCD x1
測試過程
架設TFT LCD的複雜過程在我另一篇網誌已經提過,各位可以參考以下此篇:
- Step 1:安裝在Retropie在SD卡中,插入SD卡,開啟樹莓派。
- Step 2:移到Retropie Settings,選擇後進入Raspi Config,打開SSH。
- Step 3:連接無線網路WiFi
- Step 4:另外準備一台電腦連接到樹莓派的有線網路,或同一無線網路AP連接知道此樹莓派IP address,確認你的連接電腦已安裝PuTTy 及WINSCP。
- Step 5:在連接電腦上執行WINSCP並以SFTP協議方式連到樹莓派,以你的用戶名pi和和密碼raspberry登入。
- Step 6:從網路找到並下載LCD-show-161112.tar.gz,網址如下:
http://www.waveshare.com/wiki/3.5inch_RPi_LCD_(A) - Step 7:使用WINSCP將LCD-show-161112.tar.gz從連接電腦傳輸到主要retropie文件夾旁邊的sd卡的根目錄。
- Step 8:用Putty連上樹莓派,以你的用戶名pi和和密碼raspberry登入。
- Step 9:執行已下的命令
cd
curl -O https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/master/pitft-fbcp.sh
sudo bash pitft-fbcp.sh
輸入Y繼續,然後選擇選項1或4,這裡你必須手動去設定,這時候就會繼續安裝,出線如下的一堆資訊:
The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. Last login: Tue Mar 27 14:46:28 2018 from philipelitebook.local
.~~. .~~. Tuesday, 27 March 2018, 2:56:38 pm UTC '. \ ' ' / .' Linux 4.4.11-v7+ armv7l GNU/Linux .~ .~~~..~. : .~.'~'.~. : Filesystem Size Used Avail Use% Mounted on ~ ( ) ( ) ~ /dev/root 6.4G 2.3G 3.9G 37% / ( : '~'.~.'~' : ) Uptime.............: 0 days, 00h15m16s ~ .~ ~. ~ Memory.............: 580880kB (Free) / 947748kB (Total) ( | | ) Running Processes..: 134 '~ ~' IP Address.........: 172.20.10.8 *--~-~--* Temperature........: CPU: 49°C/120°F GPU: 49°C/120°F The RetroPie Project, https://retropie.org.uk
|
pi@retropie:~/RetroPie-Setup $ cd .. pi@retropie:~ $ ls LCD-show-171219.tar.gz pitft-fbcp.sh RetroPie RetroPie-Setup pi@retropie:~ $ sudo bash pitft-fbcp.sh This script enables basic PiTFT display support for portable gaming, etc. Does not cover X11, touchscreen or buttons (see adafruit-pitft-helper for those). HDMI output is set to PiTFT resolution, not all monitors support this, PiTFT may be only display after reboot. Run time ~5 minutes. Reboot required.
CONTINUE? [y/N] y
Select project: 1. PiGRRL 2 2. Pocket PiGRRL 3. PiGRRL Zero 4. Cupcade (horizontal screen) 5. Cupcade (vertical screen) 6. Configure options manually
SELECT 1-6: 4
Device: pitft28-resistive HDMI framebuffer rotate: 0 TFT MADCTL rotate: 90
CONTINUE? [y/N] y
Starting installation... Updating package index files... Hit http://mirrordirector.raspbian.org jessie InRelease Hit http://archive.raspberrypi.org jessie InRelease Hit http://mirrordirector.raspbian.org jessie/main armhf Packages Hit http://archive.raspberrypi.org jessie/main armhf Packages Hit http://mirrordirector.raspbian.org jessie/contrib armhf Packages Hit http://archive.raspberrypi.org jessie/ui armhf Packages Hit http://mirrordirector.raspbian.org jessie/non-free armhf Packages Hit http://mirrordirector.raspbian.org jessie/rpi armhf Packages Ign http://archive.raspberrypi.org jessie/main Translation-en_GB Ign http://archive.raspberrypi.org jessie/main Translation-en Ign http://archive.raspberrypi.org jessie/ui Translation-en_GB Ign http://archive.raspberrypi.org jessie/ui Translation-en Ign http://mirrordirector.raspbian.org jessie/contrib Translation-en_GB Ign http://mirrordirector.raspbian.org jessie/contrib Translation-en Ign http://mirrordirector.raspbian.org jessie/main Translation-en_GB Ign http://mirrordirector.raspbian.org jessie/main Translation-en Ign http://mirrordirector.raspbian.org jessie/non-free Translation-en_GB Ign http://mirrordirector.raspbian.org jessie/non-free Translation-en Ign http://mirrordirector.raspbian.org jessie/rpi Translation-en_GB Ign http://mirrordirector.raspbian.org jessie/rpi Translation-en Reading package lists... Done Downloading and installing fbcp... Reading package lists... Done Building dependency tree Reading state information... Done cmake is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 242 not upgraded. % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 124 0 124 0 0 85 0 --:--:-- 0:00:01 --:--:-- 85 100 2045 100 2045 0 0 726 0 0:00:02 0:00:02 --:--:-- 2274 Archive: master.zip 8087a71d0330a078d91aa78656684ab5313616c6 creating: rpi-fbcp-master/ extracting: rpi-fbcp-master/.gitignore inflating: rpi-fbcp-master/CMakeLists.txt inflating: rpi-fbcp-master/README.md inflating: rpi-fbcp-master/main.c -- The C compiler identification is GNU 4.9.2 -- The CXX compiler identification is GNU 4.9.2 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Configuring done -- Generating done -- Build files have been written to: /tmp/rpi-fbcp-master/build Scanning dependencies of target fbcp [ 50%] Building C object CMakeFiles/fbcp.dir/main.c.o [100%] Linking C executable fbcp [100%] Built target fbcp Configuring PiTFT... Done.
Settings take effect on next boot.
REBOOT NOW? [y/N] |
在此之後,當您運行Retropie時,您的電視屏幕將被超級擠壓,並且有一些引導文本將顯示在液晶顯示器上。但不要擔心!重新啟動您的樹莓派。
- Step 10:重新用Putty連到樹莓派並輸入以下命令
sudo raspi-config
一個選單會彈出。 轉到“expand file-system”並啟用。
你也可以去啟動選項,並選擇桌面登錄;接下來執行下列命令:tar xvf LCD-show-*.tar.gz
cd LCD-show/
chmod +x LCD35-show
./LCD35-show
重新啟動液晶顯示屏和HDMI後,會發現好像搞砸了;缺少圖標,缺少文字,無法訪問任何內容。這是一種亂象,但不要擔心!
- Step 11:重新再用Putty連到樹莓派並輸入以下命令
cd RetroPie-Setup/
sudo ./retropie-setup.sh
這將帶你到Retropie菜單,選choose update all installed packages
等到它完成。 重新啟動後,它應該在您的HDMI和液晶顯示屏上完美顯示!
其它設定
注意:一般LCD屏幕方向都朝向HDMI和頂部供電的方向,如果您想切換LCD屏幕方向,請運行以下命令:
cd LCD-show/
./LCD35-show 180
後記
本文為個人學習的經驗,後續有所改進將再發文分享;本人因工作因素發文後並不會經常檢視讀者問題,對於沒法及時回覆問題敬請見諒!
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