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# Limit Checker | ||
core Flight System (cFS) Limit Checker (LC) | ||
====================================================== | ||
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NASA core Flight System Limit Checker Application | ||
Open Source Release Readme | ||
========================== | ||
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## Description | ||
LC Release 2.1.2 | ||
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The Limit Checker application (LC) is a core Flight System (cFS) application that is a plug in to the Core Flight Executive (cFE) component of the cFS. | ||
Date: 10/7/2020 | ||
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The cFS is a platform and project independent reusable software framework and set of reusable applications developed by NASA Goddard Space Flight Center. This framework is used as the basis for the flight software for satellite data systems and instruments, but can be used on other embedded systems. More information on the cFS can be found at [http://cfs.gsfc.nasa.gov](http://cfs.gsfc.nasa.gov) | ||
Introduction | ||
------------- | ||
The Limit Checker (LC) is a core Flight System (cFS) application | ||
that is a plug in to the Core Flight Executive (cFE) component of the cFS. | ||
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The LC application monitors telemetry data points in a cFS system and compares the values against predefined threshold limits. When a threshold condition is encountered, an event message is issued and a Relative Time Sequence (RTS) command script may be initiated to respond/react to the threshold violation. | ||
The LC application monitors telemetry data points in a cFS system and compares | ||
the values against predefined threshold limits. When a threshold condition is | ||
encountered, an event message is issued and a Relative Time Sequence (RTS) | ||
command script may be initiated to respond/react to the threshold violation. | ||
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## License | ||
The LC application is written in C and depends on the cFS Operating System | ||
Abstraction Layer (OSAL) and cFE components. There is additional LC application | ||
specific configuration information contained in the application user's guide | ||
available in https://github.com/nasa/LC/tree/master/docs/users_guide | ||
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This software is licensed under the NASA Open Source Agreement. http://ti.arc.nasa.gov/opensource/nosa | ||
This software is licensed under the NASA Open Source Agreement. | ||
http://ti.arc.nasa.gov/opensource/nosa | ||
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Software Included | ||
------------------ | ||
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Limit Checker application (LC) 2.1.2 | ||
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Software Required | ||
------------------ | ||
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Operating System Abstraction Layer 5.0 or higher can be | ||
obtained at https://github.com/nasa/osal | ||
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core Flight Executive 6.8.0 or higher can be obtained at | ||
https://github.com/nasa/cfe | ||
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Note: An integrated bundle including the cFE, OSAL, and PSP can | ||
be obtained at https://github.com/nasa/cfs | ||
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About cFS | ||
---------- | ||
The cFS is a platform and project independent reusable software framework and | ||
set of reusable applications developed by NASA Goddard Space Flight Center. | ||
This framework is used as the basis for the flight software for satellite data | ||
systems and instruments, but can be used on other embedded systems. More | ||
information on the cFS can be found at http://cfs.gsfc.nasa.gov | ||
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EOF |
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