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44 lines
1.7 KiB
Markdown
44 lines
1.7 KiB
Markdown
---
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pageClass: is-wide-page
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---
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# LogMessage (UORB message)
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A logging message, output with PX4_WARN, PX4_ERR, PX4_INFO.
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**TOPICS:** log_message
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## Fields
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| 参数名 | 类型 | Unit [Frame] | Range/Enum | 描述 |
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| --------- | ----------- | ---------------------------------------------------------------- | ---------- | --------------------------------------------------------------------------- |
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| timestamp | `uint64` | | | time since system start (microseconds) |
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| severity | `uint8` | | | log level (same as in the linux kernel, starting with 0) |
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| text | `char[127]` | | | |
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## Constants
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| 参数名 | 类型 | 值 | 描述 |
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| ----------------------------------------------------------------------------------------- | ------- | - | -- |
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| <a id="#ORB_QUEUE_LENGTH"></a> ORB_QUEUE_LENGTH | `uint8` | 4 | |
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## Source Message
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[Source file (GitHub)](https://github.com/PX4/PX4-Autopilot/blob/main/msg/LogMessage.msg)
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:::details
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Click here to see original file
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```c
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# A logging message, output with PX4_WARN, PX4_ERR, PX4_INFO
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uint64 timestamp # time since system start (microseconds)
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uint8 severity # log level (same as in the linux kernel, starting with 0)
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char[127] text
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uint8 ORB_QUEUE_LENGTH = 4
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```
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:::
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