===== Ecran HDMI 800x480 =====

Ecran HDMI 5" 800x480 capacitif distribué par **seeed** :
[[https://www.seeedstudio.com/user-interface-c-771/5-Inch-HDMI-Display-with-USB-TouchScreen-p-2638.html|seeedstudio.com]]
[[https://www.mouser.fr/ProductDetail/Seeed-Studio/104990243?qs=GZwCxkjl%252BU0WWV%252B4xPWv%2FQ%3D%3D|mouser.fr]]

{{ :raspberrypi:raspberrypios:hdmi800x480.png?direct&600 |}}

Pour utiliser un écran 5" 800x480, surtout avec un **OS Lite**. Il faut copier le code ci-dessous à la fin du fichier **config.txt** à la racine de la partition **boot**.

ATTENTION : la prise micro-usb sur le coté de l'écran doit être reliée à un port USB de la carte Raspberry pi.



===== Script mini :=====
<code>
# Ecran HDMI 800x480
hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=87
hdmi_cvt=800 480 60 6 0 0 0
hdmi_drive=1

max_usb_current=1
</code>



**hdmi_cvt=800 480 60 6 0 0 0 :**

^ Paramètre                ^ Par défaut       ^ Valeur                               ^
^ Largeur (px)            |      -            | **800** px                           |
^ Hauteur (px)            |      -            | **480** px                           |
^ Fréquence (Hz)          |      -            | **60**  Hz                           |
^ Format (ratio)          |    3=(16:9)       | 1 = 4:3, 2 = 14:9, 3 = 16:9          |
^ :::                     | :::               | 4 = 5:4, 5 = 16:10, **6** = 15:9     |
^ Marges                  |    0              | **0**=sans, 1=avec                   |
^ Entrelacement           |    0              | **0** = progressif, 1 = entrelacé    |
^ rb                      |    0              | **0** = normal, 1 = reduced blanking |

===== Script complet : ======

<code>
# uncomment if you get no picture on HDMI for a default "safe" mode
# hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
# disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
# overscan_left=16
# overscan_right=16
# overscan_top=16
# overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
# framebuffer_width=1280
# framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (here we are forcing 800x480!)
hdmi_group=2
hdmi_mode=87
hdmi_cvt=800 480 60 6 0 0 0

max_usb_current=1
  
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
# hdmi_drive=2
hdmi_drive=1

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
# config_hdmi_boost=4

# uncomment for composite PAL
# sdtv_mode=2

# uncomment to overclock the arm. 700 MHz is the default.
# arm_freq=800

# for more options see http://elinux.org/RPi_config.txt
</code>