: Displays all initialized devices bound to the I/O system (e.g., /null , /tyCo/0 , /flash ). 6. Real-Time Debugging and Object Inspection
: Searches the global system symbol table for functions or variables matching the text string.
: Displays memory contents starting at a specific hex address.
Modern VxWorks versions offer two target shells: the (interprets standard C expressions) and the Cmd-interpreter shell (resembles a traditional command-line prompt). To switch from the C-Shell to the Cmd-Shell, type: cmd Use code with caution. To switch from the Cmd-Shell back to the C-Shell, type: C Use code with caution. Syntax Examples Calling a function with arguments: C-Shell: taskSpawn("myTask", 100, 0, 4000, myFunc, 1) Cmd-Shell: taskspawn "myTask" 100 0 4000 myFunc 1 Printing output: C-Shell: printf("Hello World\n") Cmd-Shell: echo Hello World 7. Advanced Debugging and Symbol Management vxworks command cheat sheet
A typical debugging sequence for network issues is to use ifShow to verify interface status, followed by ping to test reachability. If hostname resolution fails, use hostAdd to manually define the mapping.
| Command | Description | |---|---| | version | Display VxWorks version and build information | | devs | List all devices on the target system | | iosFdShow | Show open file descriptors | | printError value | Display the error message for a given error code | | printErrno value | Print the macro name for a system error code | | systime | Show system time | | bootChange | Modify boot parameter settings | | reboot | Restart the target system | | quit or exit | Exit the current shell session |
| Command | Description | |---------|-------------| | help [command] | Show help (or help for specific command) | | print <value> | Print value (e.g., print 0x1234 ) | | printf "<fmt>", <args> | Formatted print (like C printf ) | | logShow | Show system log messages | | timex <function> | Time execution of a function | | period <seconds>, <function> | Run function periodically | | repeat <count>, <command> | Repeat command N times | : Displays all initialized devices bound to the
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: Searches the system symbol table for functions or variables containing that string. printErrno(value)
This comprehensive guide serves as an operational cheat sheet, covering essential commands for system diagnostics, task management, memory inspection, and network troubleshooting. 1. System Information & Statistics : Displays memory contents starting at a specific
These commands allow you to check system health, verify the VxWorks version, and inspect target hardware metrics. Environment Description version Target Shell / C-Mode
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