HMC6343 Datasheet, PDF (9/13 Pages) Honeywell Solid State Electronics Center – 3-Axis Digital Compass Module

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
Content
0x00
Slave Address
I2C Slave Address
Description
Factory Default
0x32
0x01
0x02
Reserved
S/W_V ersion
Software Version Number
0x03
0x04
Reserved
OP_Mode1
Operational Mode Register 1
0x11
0x05
0x06
OP_Mode2
S/N LSB
Operational Mode Register 2
Device Serial Number
0x01
0x07
0x08
S/N MSB
Date Code: YY
Device Serial Number
Package Date Code: Last Two Digits of the Year
Year
0x09
0x0A
0x0B
Date Code: WW
Deviation LSB
Deviation MSB
Package Date Code: Fiscal Week
Deviation Angle (±1800) in tenths of a degree
Deviation Angle (±1800) in tenths of a degree
Week
0x00
0x00
0x0C
0x0D
Variation LSB
Variation MSB
Variation Angle (±1800) in tenths of a degree
Variation Angle (±1800) in tenths of a degree
0x00
0x00
0x0E
0x0F
X_Offset LSB
X_Offset MSB
Hard-Iron Calibration Offset for the X-axis
Hard-Iron Calibration Offset for the X-axis
0x00
0x00
0x10
0x11
Y_Offset LSB
Y_Offset MSB
Hard-Iron Calibration Offset for the Y-axis
Hard-Iron Calibration Offset for the Y-axis
0x00
0x00
0x12
0x13
Z_Offset LSB
Z Offset MSB
Hard-Iron Calibration Offset for the Z-axis
Hard-Iron Calibration Offset for the Z-axis
0x00
0x00
0x14
0x15
Filter LSB
Filter MSB
Heading IIR Filter (0x00 to 0x0F typical)
Heading IIR Filter (set at zero)
0x00
0x00
www.honeywell.com
9