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
Response/Delay
Command
(hex)
Power
Applied
0x40
0x45
Commanded Action
VDD1-3 low to high
Post Accel Data.
Post Mag Data.
Response Bytes & Description
No Response Data
6 binary data Bytes. AxMSB, AxLSB,
AyMSB, AyLSB, AzMSB, AzLSB
6 binary data Bytes. MxMSB, MxLSB,
MyMSB, MyLSB, MzMSB, MzLSB
Time
(milli-seconds)
500 nominally
1
1
6 binary data Bytes. HeadMSB, HeadLSB,
0x50
0x55
0x65
0x71
0x72
0x73
0x74
0x75
0x76
0x7E
0x82
0x83
0x84
0xE1
0xF1
Post Heading Data.
Post Tilt Data.
Post OP Mode 1
Enter User Calibration
Mode
Level Orientation
Upright Sideways
Orientation
Upright Flat Front
Orientation
Enter Run Mode
Enter Standby Mode
Exit User Calibration
Mode
Reset the Processor
Enter Sleep Mode
Exit Sleep Mode
Read from EEPROM,
RAM
Write to EEPROM, RAM
PitchMSB, PitchLSB, RollMSB, RollLSB
6 binary data Bytes. PitchMSB, PitchLSB,
RollMSB, RollLSB, TempMSB, TempLSB
OP Mode 1
No Response Data
(X=forward, +Z=up) (default) No Response Data
(X=forward, Y=up) No Response Data
(Z=forward, -X=up) No Response Data
No Response Data
No Response Data
No Response Data
No Response Data
No Response Data
No Response Data
1 binary data Byte
No Response Data. Data Settling Time
1
1
1
0.3
0.3
0.3
0.3
0.3
0.3
50
500
1
20
10
10
www.honeywell.com
11
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