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halmeter − observe HAL pins, signals, and parameters |
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halmeter [-s] [pin|sig|param name] |
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halmeter is used to observe HAL (Hardware Abstraction Layer) pins, signals, or parameters. It serves the same purpose as a multimeter does when working on physical systems. |
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pin name |
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display the HAL pin name. |
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sig name |
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display the HAL signal name. |
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param name |
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display the HAL parameter name. |
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If neither pin, sig, or param are specified, the |
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window starts out blank and the user must select an item to observe. |
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−s |
small window. Non-interactive, must be used with pin, sig, or param to select the item to display. The item name is displayed in the title bar instead of the window, and there are no "Select" or "Exit" buttons. Handy when you want a lot of meters in a small space. |
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Unless −s is specified, there are two buttons, "Select" and "Exit". "Select" opens a dialog box to select the item (pin, signal, or parameter) to be observed. "Exit" does what you expect. The selection dialog has "OK" "Apply", and "Cancel" buttons. OK displays the selected item and closes the dialog. "Apply" displays the selected item but keeps the selection dialog open. "Cancel" closes the dialog without changing the displayed item. |
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halmeter |
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Opens a meter window, with nothing initially displayed. Use the "Select" button to choose an item to observe. Does not return until the window is closed. |
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halmeter & |
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Open a meter window, with nothing initially displayed. Use the "Select" button to choose an item. Runs in the background leaving the shell free for other commands. |
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halmeter pin parport.0.pin-03-out & |
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Open a meter window, initially displaying HAL pin parport.0.pin-03-out. The "Select" button can be used to display other items. Runs in background. |
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halmeter -s pin parport.0.pin-03-out & |
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Open a small meter window, displaying HAL pin parport.0.pin-03-out. The displayed item cannot be changed. Runs in background. |
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Original version by John Kasunich, as part of the Enhanced Machine Controller (EMC) project. Improvements by several other members of the EMC development team. |
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Report bugs to jmkasunich AT users DOT sourceforge DOT net |
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Copyright © 2003 John Kasunich. |