i : Prints a concise summary of all active tasks, including their TCB (Task Control Block) information.
Memory management is crucial in VxWorks. Here are some essential commands for managing memory:
– Displays the virtual memory address space layout (VxWorks 7 / RTPs). Network Configuration & Diagnostics
ti [taskName|Id] : Displays detailed information from a specific task's TCB.
Dynamically changes the priority of a running task (0 is highest, 255 is lowest). vxworks command cheat sheet
Spawns a new task. Syntax: taskSpawn("name", priority, options, stackSize, entryPt, arg1...arg10) taskSuspend(taskId) C-Mode / Target Shell Suspends a specified task by its ID or name string. taskResume(taskId) C-Mode / Target Shell Resumes a suspended task. taskDelete(taskId) C-Mode / Target Shell
: Delays the calling task for a specified number of system clock ticks. 3. Memory Inspection & Modification
VxWorks is a highly reliable, deterministic real-time operating system (RTOS) used extensively in aerospace, defense, medical devices, and industrial automation. Managing a VxWorks target requires a strong grasp of its kernel shell commands.
VxWorks includes an embedded network stack. Use these commands to configure interfaces and troubleshoot connectivity. i : Prints a concise summary of all
: Searches the system symbol table for symbols matching the string. : Displays a summary of system memory usage and statistics. moduleShow : Lists all downloaded or loaded object modules. printErrno(n) : Describes the specified error status value (use for the latest error). iosDevShow : Shows all loaded I/O devices. 3. Memory & Register Modification Interact directly with memory addresses and CPU registers. d (address, n)
: Displays a summary list of all active tasks, their IDs, priorities, status, and current stack usage.
: Decodes a numeric error code into a readable string. tt : Function call stack trace (Backtrace). 📂 File System and I/O Commands for navigating directories and managing files. ls " " : Lists files in a directory. cd " " : Changes the current working directory. pwd : Prints the current working directory. copy " ", " " : Copies a file. rm " " : Deletes a file. devs : Lists all mapped devices (e.g., /ata0 , /tyCo/0 ). iosShow : Displays the I/O system status and drivers. 🌐 Network Configuration Configure and troubleshoot network interfaces.
VxWorks is a highly reliable, deterministic real-time operating system (RTOS) used in critical systems like aerospace, defense, medical devices, and industrial automation. Navigating its C-shell (cmd) or Tornado/Workbench target shell requires familiarity with specific system commands. Unlike general-purpose operating systems
timer routines (sysClkRateGet / sysClkRateSet) — System clock configuration.
VxWorks relies heavily on tasks rather than traditional heavy processes. Monitoring task states, priorities, and stacks ensures your applications execute efficiently. Alternative (C-Shell) Description i() i
VxWorks is a deterministic, componentized real-time operating system (RTOS) designed for hard real-time embedded systems. Unlike general-purpose operating systems, VxWorks relies heavily on its shell environments—the legacy and the modern Kernel Shell (cmd_C/cmd_C++) —for debugging, system monitoring, and runtime configuration.