Vxworks Command Cheat Sheet -

Final advice: If a command isn't working, type help "command" first. If that fails, your BSP might have disabled the C interpreter. In that case, switch to the Kernel Shell using -> prompt.

Happy debugging. Keep your tasks running and your deadlines real-time.

VxWorks Command Cheat Sheet: A Comprehensive Guide

VxWorks is a popular real-time operating system (RTOS) used in a wide range of industries, including aerospace, automotive, medical, and industrial automation. As a developer working with VxWorks, it's essential to have a solid understanding of the various commands and tools available to you. In this article, we'll provide a comprehensive VxWorks command cheat sheet, covering the most commonly used commands, tools, and techniques.

Introduction to VxWorks

Before we dive into the command cheat sheet, let's take a brief look at VxWorks. VxWorks is a real-time operating system designed for embedded systems, offering a high degree of reliability, performance, and flexibility. It's widely used in applications that require predictability, low latency, and high availability.

VxWorks Command-Line Interface

The VxWorks command-line interface (CLI) provides a powerful way to interact with the operating system, execute commands, and debug applications. The CLI is typically accessed through a console or terminal connection.

Basic VxWorks Commands

Here are some basic VxWorks commands to get you started:

Process Management Commands

Process management is a critical aspect of VxWorks. Here are some essential commands for managing processes:

Memory Management Commands

Memory management is crucial in VxWorks. Here are some essential commands for managing memory:

File System Commands

VxWorks provides a robust file system for storing and retrieving files. Here are some essential file system commands:

Networking Commands

VxWorks provides a range of networking commands for configuring and managing network interfaces:

Debugging Commands

Debugging is an essential part of VxWorks development. Here are some essential debugging commands:

VxWorks Shell Commands

The VxWorks shell provides a range of commands for executing scripts, managing environment variables, and more:

Advanced VxWorks Commands

Here are some advanced VxWorks commands for power users:

Conclusion

In this comprehensive VxWorks command cheat sheet, we've covered the most commonly used commands, tools, and techniques for working with VxWorks. Whether you're a seasoned developer or just starting out, this guide should provide a valuable reference for your VxWorks development needs. vxworks command cheat sheet

Additional Resources

For more information on VxWorks and its commands, we recommend the following resources:

FAQs

Q: What is the default VxWorks shell? A: The default VxWorks shell is the VxWorks command-line interface (CLI).

Q: How do I create a new task in VxWorks? A: Use the task create command to create a new task.

Q: How do I display memory usage statistics in VxWorks? A: Use the mem command to display memory usage statistics.

Q: How do I configure a network interface in VxWorks? A: Use the ifconfig command to configure a network interface.

By mastering these VxWorks commands, you'll become more efficient and effective in your development work, and be better equipped to tackle complex projects and debugging tasks. Happy developing!

A VxWorks command cheat sheet is an essential reference for developers interacting with the

(shell) environment. Unlike modern Linux shells, WindSh is an interactive C expression interpreter, meaning commands often look like C function calls with quoted strings and comma-separated arguments. Core Command Review

Common cheat sheets typically categorize commands into the following functional groups: 1. Task & Execution Management

These are the most used commands for controlling the real-time processes (tasks) that define a VxWorks system. sp (entryPt, arg1, ...) : Spawns a new task with default parameters. sps (entryPt)

: Spawns a task but leaves it in a suspended state for debugging. td (taskNameOrId) : Deletes a task immediately. : Suspend and Resume a task, respectively. : Displays a synopsis of all running tasks (similar to in Linux). 2. Memory & Object Inspection | Category | Top 3 Commands | |

Essential for debugging real-time resource allocation and synchronization. d (address, nItems)

: Displays memory contents starting at a specific hex address. m (address) : Modifies memory at the specified address.

: Provides a high-level summary of free and allocated system memory. semShow (semId)

: Shows the status of a specific semaphore (e.g., owner, count, blocked tasks). 3. System & Symbol Information : Lists all registered devices on the target system. lkup "string"

: Searches the system symbol table for functions or variables matching the string. printErrno(n)

: Explains the meaning of the most recent error status code.

: Displays the command history; the default size is usually 20. 4. File System & Module Loading

While VxWorks supports standard Unix-like navigation, the syntax requires quotes. : Basic directory navigation and listing. ld < filename : Loads an object module into memory from a file. unld "moduleName" : Unloads a previously loaded module. Usage Tips for Developers : Always remember to quote strings (e.g., cd "host:C/" Vi Editing : The shell supports a subset of

command-line editing for history navigation and line editing. or the shortcut to restart the processor if a task crash hangs the system. Further Exploration View the original VxWorks Command Cheat Sheet on Scribd for a formatted PDF version. For more complex operations, consult the VxWorks Application Programmer's Guide which details real-time process management. Learn about setting up the Device Debug Perspective for a visual alternative to CLI-based debugging. kernel-level debugging VxWorks Command Line Cheat Sheet | PDF | Booting - Scribd

| Command | Description | |---------|-------------| | wdShow | Show all active watchdog timers | | wdStart <wdId>, <delayTicks>, <func>, <arg> | Start a watchdog | | wdCancel <wdId> | Cancel watchdog |

| Command | Description | |---------|-------------| | tr | Trace tasks (context switch logging) | | trc | Start task tracing | | trcStop | Stop task tracing | | b <funcName> | Set breakpoint | | t <taskId> | Show task stack trace | | d | Dump memory | | printf "format", args | Print to console | | logShow | Show system log | | logFdShow | Show log file descriptors |

| Command | Description | |---------|-------------| | msgQShow | Show message queues | | msgQSend <qId> <msg> <size> <timeout> | Send a message | | msgQReceive <qId> <buffer> <maxSize> <timeout> | Receive a message |

i                     // See all tasks. Look for one with 'PEND' or 'READY'
ti "myHighTask"       // Inspect stack and PC
taskSuspend "myHighTask" // Pause it. See if system recovers.
taskResume "myHighTask"  // Resume.
taskPrioritySet "myHighTask", 150 // Bump it lower.