HMC6343_13 Datasheet, PDF (11/13 Pages) Honeywell Solid State Electronics Center – 3-Axis Compass with Algorithms

HMC6343
Timing
Upon power application to the HMC6343, wait nominally 500 milli-seconds before sending the first I2C command (typically
a 0x32 byte followed by a 0x50 byte for the usual heading/pitch/roll). Depending on the command sent, a delay time
should be inserted before clocking out the response bytes (send 0x33, clock back response bytes). The following table
indicates the response delay times for various commands.
Table 3 – HMC6343 Command to Response Delay Times
Prior
Command
(hex)
Power
Applied
0x40
Commanded Action
Response Bytes & Description
VDD1-3 low to high
Post Accel Data.
No Response Data
6 binary data Bytes. AxMSB, AxLSB,
AyMSB, AyLSB, AzMSB, AzLSB
Response/Delay
Time
(milli-seconds)
500 nominally
1
0x45
Post Mag Data.
6 binary data Bytes. MxMSB, MxLSB,
MyMSB, MyLSB, MzMSB, MzLSB
1
6 binary data Bytes. HeadMSB, HeadLSB,
0x50
Post Heading Data.
PitchMSB, PitchLSB, RollMSB, RollLSB
1
0x55
Post Tilt Data.
6 binary data Bytes. PitchMSB, PitchLSB,
RollMSB, RollLSB, TempMSB, TempLSB
1
0x65
Post OP Mode 1
OP Mode 1
1
0x71
Enter User Calibration
Mode
No Response Data
0.3
0x72
Level Orientation
(X=forward, +Z=up) (default) No Response Data
0.3
0x73
Upright Sideways
Orientation
(X=forward, Y=up) No Response Data
0.3
0x74
Upright Flat Front
Orientation
(Z=forward, -X=up) No Response Data
0.3
0x75
Enter Run Mode
No Response Data
0.3
0x76
Enter Standby Mode
No Response Data
0.3
0x7E
Exit User Calibration
Mode
No Response Data
50
0x82
Reset the Processor
No Response Data
500
0x83
Enter Sleep Mode
No Response Data
1
0x84
Exit Sleep Mode
No Response Data
0xE1
0xF1
Read from EEPROM,
RAM
1 binary data Byte
Write to EEPROM, RAM No Response Data. Data Settling Time
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