RP2040 PIO Emulator

Getting Started

Getting Started

• Introduction
  • Background
  • Challenge
  • Solution
• PIO Programs
  • Instruction Set
  • Debugging
  • Emulation
• Overview
  • Start Emulation Server
  • Start Monitor Session
  • Start the GPIO Observer
  • Start the Code Observer
  • Start the FIFO Observer
  • Create Timing Diagrams
  • Obtain a Tailored Environment
• Download & Compile
  • Prerequisites
  • Download
  • Compile

Basic Blocks

Basic Blocks

• Architecture
  • Emulator Core
  • Emulator Timing
  • Register Facade
  • Java SDK
  • Register Server
  • Register Client
  • Remote Java SDK
  • Client Applications
• Emulation Server
  • Starting the Server
  • Shutting Down
• Client Applications
  • Connection Status
  • Command-Line Options

Working With Client Applications

Working With Client Applications

• Monitor Client
  • Starting a Session
  • Resetting the Emulator
  • Set Up a Program
  • Step-by-Step Tracing
  • Multi-Step Tracing
  • Ending a Session
• Diagram Creator
  • Recording
  • Rendering
  • Setup
• GPIO Observer
  • PIO vs. GPIO View
  • Override
  • Pin View
  • Refresh
• Code Observer
  • Delay
  • Forced & EXEC’d Instructions
  • Enable Status
  • Further Features
• FIFO Observer
  • TX and RX
  • Autoscrolling
  • Joining
  • FDEBUG Bits
  • OSR and ISR
• External Data
  • External Squarewave Generator
  • Running the External Signal Against the PIO Program
  • Summary

Epilogue

Epilogue

• Limitations
  • Concurrency
  • Lost Updates
  • Race Conditions
  • Summary
• Future Work
• References

User Reference Documentation

Appendix A: User Reference Documentation

• Command-Line Syntax
  • Characters With Special Semantics
  • Example
• Monitor commands
  • Overview
  • breakpoints
  • clear
  • clock
  • enter
  • execute
  • fifo
  • gpio
  • help
  • label
  • load
  • pinctrl
  • quit
  • read
  • registers
  • reset
  • save
  • script
  • side-set
  • sm
  • trace
  • unassemble
  • unload
  • version
  • wait
  • wrap
  • write
• Example Scripts
  • APA102
  • Autopush and Autopull
  • Differential Manchester (BMC) TX and RX
  • Manchester Serial TX and RX
  • SPI
  • Squarewave
  • UART
  • WS2812
  • Other
• Socket API
  • Overview
  • Example Session
  • Request Syntax
  • Response Syntax
  • Security Considerations

Register API Documentation

Appendix B: Register API Documentation

• Emulator Global Registers
• Emulator PIO Registers
• RP2040 PIO Registers
• RP2040 GPIO Registers

Indices and tables

• Index
• Search Page