Cheat Sheet — Vxworks Command

VxWorks supports DOSFS, HRFS, NFS, and raw devices.

: Checks the stack usage of a specific task to ensure it is not nearing exhaustion.

: Shows all tasks, their names, IDs, priorities, current status (PEND, READY, DELAY), and program counters.

step or stepi : Steps through a program by source line or a single machine instruction.

: Returns the current system clock rate in ticks per second (typically 60Hz or 1000Hz). vxworks command cheat sheet

Type ti "TaskName" to examine the culprit task's stack usage and entry point.

Offers a traditional command-line interface with simplified syntax (resembling Unix/DOS). Essential Shell Controls

Displays the VxWorks kernel version, build date, and runtime details. sysHwInitTest Target Shell

Bookmark it. When the Mars rover sends back a 0xDEADBEEF or the fighter jet displays a taskDelay loop, these commands will be your lifeline. VxWorks supports DOSFS, HRFS, NFS, and raw devices

– Sends ICMP echo requests to verify network connectivity.

Execute printErrno(errnoOfTask) using the error status code printed in the task info.

: Displays stack usage for a task; use 0 to check all. System & Information

: Searches the system symbol table for functions or variables matching the string. printErrno(n) step or stepi : Steps through a program

By mastering these VxWorks commands, you'll be better equipped to develop, debug, and maintain embedded systems efficiently. Happy coding!

: Generic object show command. Can be passed a task ID to display target synchronization primitives. Task Control Commands

| Command | Description | |---------|-------------| | i | Show all tasks (ID, name, state, priority, stack used) | | ti <taskId> | Show detailed info about a specific task | | taskSpawn <name>, <prio>, <options>, <stackSize>, <entryFunc> | Create and start a new task | | taskDelete <taskId> | Delete a task | | taskSuspend <taskId> | Suspend a task | | taskResume <taskId> | Resume a suspended task | | taskPrioritySet <taskId>, <newPrio> | Change task priority | | taskLock / taskUnlock | Disable/enable preemption for current task | | taskRestart <taskId> | Restart a task |

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

VxWorks is a highly reliable, deterministic real-time operating system (RTOS) used in critical systems like aerospace, defense, medical devices, and industrial automation. When debugging or configuring a VxWorks target via the target shell (either the C-interpreter shell or the cmd-interpreter shell), having the right commands at your fingertips is essential.