First Steps with Capacitive Touch Display 7" DSI
Introduction
This article provides information on how to get started with the Capacitive Touch Display 7" DSI, including the topics below:
- Hardware setup (wiring).
- Installation and configuration of the necessary drivers for a touch demo.
Getting Started
What I need to order
The Capacitive Touch Display 7" DSI can be ordered with many Toradex computer on modules and carrier boards. See the compatible products.
Where do I order
All the products can be ordered online in the Toradex Webshop.
Cable Connection
This provides the steps to connect the 7" DSI Capacitive Touch Display to your carrier board.
- Connect the flat ribbon cable to the display as shown in the image below:
- Connect the flat ribbon cable to your carrier board. You can find this information in the following subsections.
Connections on Aquila Development Board
A Toradex DSI Display Adapter is required to use this display on Aquila Development Board.
Connect the Toradex DSI Display Adapter into the DSI Connector (J44) of the carrier board.
Connect the flat ribbon cable to the display. Make sure to connect the pin 1 side of display controller to the respective pin 1 of the Toradex DSI Display Adapter.
Connections on Clover Carrier Board
Connect the flat ribbon cable to the display. Make sure to connect the pin 1 side of display controller to the respective pin 1 of the J12 connector of the Clover Carrier Board.
Connections on Ivy Carrier Board
Connect the flat ribbon cable to the display. Make sure to connect the pin 1 side of display controller to the respective pin 1 of the J15 connector of the Ivy Carrier Board.
Connections on Mallow Carrier Board
Connect pin 1 of the display controller to the corresponding pin 1 on the carrier board, as shown in the picture below:
Connection on Dahlia Carrier Board
A Toradex DSI Display Adapter is required to use the Dahlia Carrier Board:
- Connect the adapter to the DSI Connector (X48) of the carrier board.
- Connect pin 1 of the display controller to the corresponding pin 1 on the adapter, as shown in the picture below:
Connection on SMARC Development Board
A Toradex DSI Display Adapter is required to use this display on SMARC boards.
Connect the Toradex DSI Display Adapter into the MIPI DSI Connector (J44) of the carrier board.
Connect the flat ribbon cable to the display. Make sure to connect the pin 1 side of display controller to the respective pin 1 of the Toradex DSI Display Adapter.
Connection on Verdin Development Board
A Toradex DSI Display Adapter is required to use the Verdin Development Carrier Board:
- Connect the adapter to the DSI Connector (X17) of the carrier board.
- Connect pin 1 of the display controller to the corresponding pin 1 on the adapter, as shown in the picture below:
Installation on Embedded Linux
Setup on Torizon OS and Linux BSP
Toradex provides pre-compiled and ready-to-use device tree overlays for this display. These overlays allow quick evaluation on both Torizon OS and Linux BSP.
Some overlays are pre-enabled by default, refer to the Pre-enabled Device Tree Overlays section for this.
In certain cases, multiple overlays may configure the same interfaces or hardware resources. When this happens, enabling more than one overlay for the same interface may lead to undesired behavior.
Ensure that any overlaping overlays are removed before enabling the desired one.
To enable or disable overlays, follow the instructions corresponding to the operating system in use:
- Torizon OS: Setting up Displays with Torizon
- Images built with Linux BSP (Yocto): Device Tree Overlays (Linux)
For more advanced use cases, refer to Display Output, Resolution and Timings (Linux).
Adjusting the Brightness
Read the dedicated article: Backlight (Linux).
Touch Screen
Capacitive touch screen works out-of-the-box in our BSPs.
Touch Screen Calibration
Refer to the dedicated articles: