PNI FieldForce Trax - Manual (Page 52)

PNI Sensor Corporation DOC#1016505 r06
TRAX User Manual Page 48
Note that the inverse of the SampleDelay is somewhat greater than the actual
sample rate, since the SampleDelay does not include actual acquisition time.
kSetAcqParamsDone (frame ID 26
d
)
This frame is the response to kSetAcqParams frame. The frame has no payload.
kGetAcqParams (frame ID 25
d
)
This frame queries the unit for acquisition parameters. The frame has no payload.
kGetAcqParamsResp (frame ID 27
d
)
This frame is the response to kGetAcqParams frame. The payload should contain the
same payload as the kSetAcqParams frame.
7.5.3 Data Components
kSetDataComponents (frame ID 3
d
)
This frame defines what data is output when kGetData is sent. Table 7-5 summarizes
the various data components and more detail follows this table. Note that this is not a
query for the device's model type and software revision (see kGetModInfo). The first
byte of the payload indicates the number of data components followed by the data
component IDs. Note that the sequence of the data components defined by
kSetDataComponents will match the output sequence of kGetDataResp.
Example: To query for heading and heading status, the payload should contain:
Table 7-5: Component Identifiers
Component
Component ID
Format Units
Decimal Hex
kHeading 5 0x05 Float32 degrees
kPitch 24 0x18 Float32 degrees
kRoll 25 0x19 Float32 degrees
kHeadingStatus 79 0x4F UInt8 value
02
Heading ID
05
ID Count
Payload
18
Pitch ID
ID Count
UInt8
ID 1
UInt8
Payload
ID 2 ID 3
UInt8 UInt8
……….