Skip to content

New release 9.0 inaugurates a new architecture with two layers: the screen library generates the image; the driver manages the board and updates the screen.

Pervasive Displays Library Suite - User Guide

Optimise

Initializing search

About
Getting started
Shared libraries
Screen libraries
Application libraries
Notes and designs
Appendixes

Pervasive Displays Library Suite - User Guide

About
Getting started
Getting started
Shared libraries
Shared libraries
- Common library
  Common library
- Peripherals library
  Peripherals library
- Fonts library
  Fonts library
Screen libraries
Screen libraries
- Select the libraries
- Driver
- Screen
- Functions
  Functions
  - Orientation
  - Colours
  - Shapes
  - Fonts
  - Text
  - Touch
  - Margins
  - Low-power
- Examples
- Viewer
  Viewer
  - Viewer commands
  - Viewer functions
Application libraries
Application libraries
- Graphics library
  Graphics library
  - Graphics
  - Elements
    
    Elements
    
    Channels
    
    Clock
    
    Gauge
    
    Histogram
    
    Label
    
    Multiple histogram
  - Examples
- GUI library
  GUI library
  - GUI
  - Elements
    
    Elements
    
    Area
    
    Bar-graph
    
    Button
    
    Check-box
    
    Cursor
    
    Flip-flop button
    
    Keyboard
    
    Label
    
    Plus-minus combined button
    
    Radio-buttons
    
    Switch
    
    Table
    
    Text-box
    
    Text
  - Item
  - Examples
- Bar- and QR-code library
  Bar- and QR-code library
  - Elements
    
    Elements
    
    Bar-code type 39
    
    Bar-code type 128
    
    QR-code
  - Examples
- File library
  File library
- Serial library
  Serial library
Notes and designs
Notes and designs
- Technical notes
  Technical notes
  - Design
    
    Design
    
    Select the application structure
    
    Design an application
    
    Design a page
  - Manage constrained resources
    
    Manage constrained resources
    
    Use external SPI SRAM for frame-buffer
    
    Use external SPI Flash for fonts
    
    Use interrupt for low power
    
    Use GPIO expander
    
    Manage temperature
  - Expand
    
    Expand
    
    Generate new fonts
    
    Upload fonts to external SPI Flash
    
    Generate header file from image
    
    Define a non-listed board
  - Optimise
    
    Optimise
    
    Optimise GUI speed
    
    Optimise update modes
  - Trace and debug
    
    Trace and debug
    
    Generate a trace
    
    Debug the screen SPI signals
    
    Debug the touch I²C signals
    
    Debug the sensors I²C signals
  - Migrate
    
    Migrate
    
    Migrate to another SDK
    
    Migrate from Basic to Evaluation or Commercial edition
    
    Migrate from Viewer to Commercial edition and back
    
    Migrate from release 8 to release 9
    
    Migrate from release 7 to release 8
    
    Migrate from release 6 to release 7
    
    Migrate from release 5 to release 6
  - Manage specific configurations
    
    Manage specific configurations
    
    Use PDLS with EXT4
    
    Use two screens
    
    Use the font library with the Basic edition
    
    Use the GUI library with the Basic edition
- Reference designs
  Reference designs
  - Home automation
    
    Home automation
    
    Air-quality monitoring
    
    Weather station
    
    Matter weather station
    
    Matter RGB LED
  - Communication
    
    Communication
    
    Remote messages panel
    
    Remote images panel
    
    Typie-walkie device
  - Medical equipment
    
    Medical equipment
    
    Electrocardiogram
    
    Blood pressure monitor
  - Security
    
    Security
    
    Entrance control
  - Games
    
    Games
    
    Tic-tac-toe game
Appendixes
Appendixes

Basic Commercial Evaluation Viewer

Optimise¶

The technical notes describe how to optimise the speed and update modes.

Optimise GUI speed;
Optimise update modes.

Define a non-listed board

Optimise GUI speed

Copyright © Rei Vilo, 2010-2025 • All rights reserved

Made with Material for MkDocs