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49 lines
1.8 KiB
Markdown
49 lines
1.8 KiB
Markdown
---
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pageClass: is-wide-page
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---
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# ParameterUpdate (UORB message)
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This message is used to notify the system about one or more parameter changes.
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**TOPICS:** parameter_update
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## Fields
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| Name | Type | Unit [Frame] | Range/Enum | Description |
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| --------------------------------------------- | -------- | ------------ | ---------- | ---------------------------------------- |
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| <a id="fld_timestamp"></a>timestamp | `uint64` | | | time since system start (microseconds) |
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| <a id="fld_instance"></a>instance | `uint32` | | | Instance count - constantly incrementing |
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| <a id="fld_get_count"></a>get_count | `uint32` | | |
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| <a id="fld_set_count"></a>set_count | `uint32` | | |
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| <a id="fld_find_count"></a>find_count | `uint32` | | |
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| <a id="fld_export_count"></a>export_count | `uint32` | | |
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| <a id="fld_active"></a>active | `uint16` | | |
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| <a id="fld_changed"></a>changed | `uint16` | | |
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| <a id="fld_custom_default"></a>custom_default | `uint16` | | |
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## Source Message
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[Source file (GitHub)](https://github.com/PX4/PX4-Autopilot/blob/main/msg/ParameterUpdate.msg)
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::: details Click here to see original file
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```c
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# This message is used to notify the system about one or more parameter changes
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uint64 timestamp # time since system start (microseconds)
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uint32 instance # Instance count - constantly incrementing
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uint32 get_count
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uint32 set_count
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uint32 find_count
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uint32 export_count
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uint16 active
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uint16 changed
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uint16 custom_default
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```
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:::
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