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71 lines
6.4 KiB
Markdown
71 lines
6.4 KiB
Markdown
---
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pageClass: is-wide-page
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---
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# UavcanParameterRequest (UORB message)
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UAVCAN-MAVLink parameter bridge request type.
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**TOPICS:** uavcan_parameter_request
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## Fields
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| 명칭 | 형식 | Unit [Frame] | Range/Enum | 설명 |
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| --------------------------------- | ---------- | ---------------------------------------------------------------- | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
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| timestamp | `uint64` | | | time since system start (microseconds) |
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| message_type | `uint8` | | | MAVLink message type: PARAM_REQUEST_READ, PARAM_REQUEST_LIST, PARAM_SET |
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| node_id | `uint8` | | | UAVCAN node ID mapped from MAVLink component ID |
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| param_id | `char[17]` | | | MAVLink/UAVCAN parameter name |
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| param_index | `int16` | | | -1 if the param_id field should be used as identifier |
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| param_type | `uint8` | | | MAVLink parameter type |
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| int_value | `int64` | | | current value if param_type is int-like |
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| real_value | `float32` | | | current value if param_type is float-like |
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## Constants
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| 명칭 | 형식 | Value | 설명 |
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| ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------- | ----- | ------------------------------------------------------------------------------------------------------------------------------------------ |
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| <a id="#MESSAGE_TYPE_PARAM_REQUEST_READ"></a> MESSAGE_TYPE_PARAM_REQUEST_READ | `uint8` | 20 | MAVLINK_MSG_ID_PARAM_REQUEST_READ |
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| <a id="#MESSAGE_TYPE_PARAM_REQUEST_LIST"></a> MESSAGE_TYPE_PARAM_REQUEST_LIST | `uint8` | 21 | MAVLINK_MSG_ID_PARAM_REQUEST_LIST |
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| <a id="#MESSAGE_TYPE_PARAM_SET"></a> MESSAGE_TYPE_PARAM_SET | `uint8` | 23 | MAVLINK_MSG_ID_PARAM_SET |
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| <a id="#NODE_ID_ALL"></a> NODE_ID_ALL | `uint8` | 0 | MAV_COMP_ID_ALL |
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| <a id="#PARAM_TYPE_UINT8"></a> PARAM_TYPE_UINT8 | `uint8` | 1 | MAV_PARAM_TYPE_UINT8 |
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| <a id="#PARAM_TYPE_INT64"></a> PARAM_TYPE_INT64 | `uint8` | 8 | MAV_PARAM_TYPE_INT64 |
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| <a id="#PARAM_TYPE_REAL32"></a> PARAM_TYPE_REAL32 | `uint8` | 9 | MAV_PARAM_TYPE_REAL32 |
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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/UavcanParameterRequest.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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# UAVCAN-MAVLink parameter bridge request type
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uint64 timestamp # time since system start (microseconds)
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uint8 MESSAGE_TYPE_PARAM_REQUEST_READ = 20 # MAVLINK_MSG_ID_PARAM_REQUEST_READ
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uint8 MESSAGE_TYPE_PARAM_REQUEST_LIST = 21 # MAVLINK_MSG_ID_PARAM_REQUEST_LIST
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uint8 MESSAGE_TYPE_PARAM_SET = 23 # MAVLINK_MSG_ID_PARAM_SET
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uint8 message_type # MAVLink message type: PARAM_REQUEST_READ, PARAM_REQUEST_LIST, PARAM_SET
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uint8 NODE_ID_ALL = 0 # MAV_COMP_ID_ALL
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uint8 node_id # UAVCAN node ID mapped from MAVLink component ID
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char[17] param_id # MAVLink/UAVCAN parameter name
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int16 param_index # -1 if the param_id field should be used as identifier
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uint8 PARAM_TYPE_UINT8 = 1 # MAV_PARAM_TYPE_UINT8
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uint8 PARAM_TYPE_INT64 = 8 # MAV_PARAM_TYPE_INT64
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uint8 PARAM_TYPE_REAL32 = 9 # MAV_PARAM_TYPE_REAL32
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uint8 param_type # MAVLink parameter type
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int64 int_value # current value if param_type is int-like
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float32 real_value # current value if param_type is float-like
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uint8 ORB_QUEUE_LENGTH = 4
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```
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:::
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