meta-panda

The layer meta-panda contains yocto recipes and configuration for building the linux system running in PandA.

• The machines provided are: pandabox and xu5-st1.

• The distro provided is panda-petalinux.

• The image provided is panda-image.

Source code	https://github.com/PandABlocks/meta-panda
Documentation	https://PandABlocks.github.io/meta-panda
Changelog	https://github.com/PandABlocks/meta-panda/releases

What does the panda linux system do?

The linux system sets up a number of services on it:

• Bringing up the network as specified in a config.txt file on the SD card

• Running an SSH server that allows debugging access to those who have their public keys on the PandA

• Programming the FPGA and running services like the TCP server and Web Control as specified in packages

• Running a Web Admin server on port 80 that allows IPK files to allow the installation and removal of packages, and addition of SSH keys from the USB stick

How the documentation is structured

Linux System Documentation

• How-to Guides
  • Building the panda image
    • Output Files
  • Make a release
  • IPK Packages (opkg)
    • Installing IPK Files
  • Getting a PandA on the network
    • Override file
    • Web Interface
    • Web Admin
    • Frequently Asked Questions
      • How to configure the network statically?
      • How to disable sub-net validation in the webcontrol?
      • How to recover from catastrophic changes?
      • How to load the full rootfs to RAM at boot time?
      • What to do if system freezes after loading the FPGA?
      • How to override the FPGA bitstream variant used?
      • How to authorise a public key for ssh?
  • Updating a PandA via SSH
    • Updating the rootfs
    • Update 24V eeprom
  • Run in a container
    • Starting the container
  • Updating a PandA via web interface
    • Updating the rootfs
• Explanations
  • Boot Process
• Reference
  • opkg Command
• Tutorials
  • Long way to build the panda image
  • Blinking LEDs Tutorial
    • Opening the GUI
    • Loading the tutorial design
    • How the design works
    • The Bit Bus
    • Conclusion
  • Position Capture Tutorial
    • Loading the tutorial design
    • How the design works
    • Conclusion
  • Position Compare Tutorial
  • Snake Scan Tutorial

Webcontrol Documentation

• Introduction
• Quick Start
• User Interface Overview
  • User Interface Components
  • Principle User Interface views
  • Layout View
  • Attribute View
  • Panel Popping
• Working With a Design
  • Adding a Block to a Design
  • Removing a Block from a Design
  • Working with the Block Palette
  • Specifying Block Attributes
    • Types of Attributes
    • Obtaining Information About an Attribute
    • Setting a Block Attribute
    • View/Edit Button
    • Dropdown List
    • Text Input
    • Checkbox
    • Exporting Attributes
    • Local vs. Server Parameter Attribute State
    • Attribute Change Lifecycle
  • Complex Attributes
    • Identifying Table Attributes
    • Specifying Attribute Table Content
    • Static vs. Dynamic Attribute Tables
  • Working with Block Methods
    • Obtaining information about Method execution
  • Block Ports
  • Linking Blocks
    • Creating a Block Link
    • Interrogating Link Attributes
    • Removing a Link
    • Constraints When Using Links
  • Saving a Design
  • Opening an Existing Design
• Monitoring Attribute Values
  • Working With Charts
    • Interactive Chart Functionality
    • Enhanced Chart Interactivity
    • Exporting a Chart For External Presentation
    • Data Retrieval and Chart Update Frequency
  • Working with Numerical Tables
    • Data Retrieval and Table Update Frequency
• Understanding Attribute State
  • Normal State
  • Processing State
  • Locally Edited State
  • Update Error State
  • Warning State
  • Error State
  • Invalid State
  • Disconnected State
  • Presenting Status Information
• Glossary