: Performs a programmatic soft reset of the processor target, triggering standard bootline reload sequences. Quick Reference Command Matrix Command Category Quick Description Tasking i Summarize active task states and IDs Tasking tt taskID Display a stack backtrace for a specific task Memory d address Hex dump memory contents Memory memShow Display system RAM utilization summaries Performance spy Initialize target CPU utilization tracking Network ifShow Print interface hardware configurations and IPs I/O System iosDevShow Linking lkup "name" Search system registers for a specific text string symbol
: Dynamically changes a task's priority at runtime.
Because VxWorks allows downloading compiled binary objects (.o or .out files) straight into running kernel space, runtime symbol lookup functions are critical. Object Loading & Symbol Queries
| Command | Description | Example | | :--- | :--- | :--- | | or h | Lists all available shell commands. | h | | help "topic" | Shows help for a specific command or function. | help "taskSpawn" | | ls | Lists files in the target's file system. | ls "/ata0a/" | | pwd | Print current working directory. | pwd | | cd | Change directory. | cd "/tffs0/" | | echo | Print a string to the console. | echo "Hello VxWorks" | | printError | Converts a numeric status code into a readable string. | printError 0x3d | vxworks command cheat sheet
When a system crashes or behaves unpredictably, use these low-level commands to inspect hardware registers and memory addresses. Memory Manipulation
: cmd = C → C ommand mode; C = C ommand → C mode.
The VxWorks kernel shell is often disabled by default to keep the image size minimal; you must enable the BUNDLE_STANDALONE_SHELL component. Once active, you can customize the editing environment. : Performs a programmatic soft reset of the
: Starts the auxiliary clock profile manager to measure CPU utilization per task. spyStop() : Stops the CPU utilization profiling tool. Task Control
rtpSp " " – Spawns a new Real-Time Process from an executable file on disk.
These commands help you peek into the system's memory, state, and code. Object Loading & Symbol Queries | Command |
You are a low-level engineer. You need to peek and poke at physical memory.
Translates a hexadecimal VxWorks error number into a human-readable string. tt(task_id) tt
Since the shell is a C interpreter, you can declare and print variables:
VxWorks supports standard file systems (like HRFS or dosFs). Standard POSIX-like syntax is supported through the shell for interacting with local or network-mounted directories. Alternative (C-Shell) Description cd "path" cd Changes the current working directory. pwd() pwd Prints the absolute path of the current directory. ls() or dir() ls or dir Lists files and folders in the current directory. copy("src", "dest") copy Copies a file from a source location to a destination. remove("filename") remove Deletes a specified file from the storage medium. devs() devs