HMC6343_13 Datasheet, PDF (9/13 Pages) Honeywell Solid State Electronics Center – 3-Axis Compass with Algorithms

HMC6343
Heading Filter
This allows for an Infinite Impulse Response (IIR) filter to be employed on current and previous heading data outputs.
Typical values are 0 to 15 with a factory default of zero. The filter is only applied in run mode where a continuous stream
of data is present. At the 5Hz default update rate, a filter value of 4 would weight the latest heading with the previous four
headings of regressive weightings for a second’s worth of filtering.
EEPROM Registers
The HMC6343 contains EEPROM non-volatile memory locations (registers) to store useful compass data for processor
routines. The following Table shows the register locations, content, description, and factory shipped defaults.
Table 1 – EEPROM Registers
EEPROM
Location
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
Content
Slave Address
Reserved
S/W_Version
Reserved
OP_Mode1
OP_Mode2
S/N LSB
S/N MSB
Date Code: YY
Date Code: WW
Deviation LSB
Deviation MSB
Variation LSB
Variation MSB
X_Offset LSB
X_Offset MSB
Y_Offset LSB
Y_Offset MSB
Z_Offset LSB
Z Offset MSB
Filter LSB
Filter MSB
Description
I2C Slave Address
Software Version Number
Operational Mode Register 1
Operational Mode Register 2
Device Serial Number
Device Serial Number
Package Date Code: Last Two Digits of the Year
Package Date Code: Fiscal Week
Deviation Angle (±1800) in tenths of a degree
Deviation Angle (±1800) in tenths of a degree
Variation Angle (±1800) in tenths of a degree
Variation Angle (±1800) in tenths of a degree
Hard-Iron Calibration Offset for the X-axis
Hard-Iron Calibration Offset for the X-axis
Hard-Iron Calibration Offset for the Y-axis
Hard-Iron Calibration Offset for the Y-axis
Hard-Iron Calibration Offset for the Z-axis
Hard-Iron Calibration Offset for the Z-axis
Heading IIR Filter (0x00 to 0x0F typical)
Heading IIR Filter (set at zero)
Factory Default
0x32
0x11
0x01
Year
Week
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
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