Manual

PNI Sensor Corporation Doc 1017252 r03
RM3100 & RM2100 Sensor Suite User Manual Page 1 of 45
Table of Contents
1 COPYRIGHT & WARRANTY INFORMATION ............................................................ 3
2 INTRODUCTION .......................................................................................................... 4
3 SPECIFICATIONS ....................................................................................................... 5
3.1 GEOMAGNETIC SENSOR CHARACTERISTICS .......................................... 5
3.2 SEN-XY-F AND SEN-Z-F CHARACTERISTICS ............................................. 6
3.3 MAGI2C CHARACTERISTICS ........................................................................ 7
3.4 DIMENSIONS, PACKAGING, AND PAD & MASK LAYOUT .......................... 8
3.4.1 Sen-XY-f ............................................................................................. 8
3.4.2 Sen-Z-f .............................................................................................. 10
3.4.3 MagI2C ............................................................................................. 12
3.5 SOLDERING ................................................................................................. 13
4 GEOMAGNETIC SENSOR OVERVIEW & SET-UP .................................................. 15
4.1 OVERVIEW ................................................................................................... 15
4.2 LAYOUT ........................................................................................................ 17
4.2.1 Sensor Coil Orientation .................................................................... 17
4.2.2 Local Magnetic Field Considerations ............................................... 18
4.2.3 Other Layout Considerations ............................................................ 19
4.3 MAGI2C PIN-OUT ......................................................................................... 19
4.3.1 General Pins ..................................................................................... 19
4.3.2 SPI Pins ............................................................................................ 21
4.3.3 I
2
C Pins ............................................................................................. 22
4.4 SPI TIMING REQUIREMENTS ..................................................................... 23
4.5 I
2
C REQUIREMENTS .................................................................................... 25
4.5.1 I
2
C Register Write ............................................................................. 25
4.5.2 I
2
C Register Read ............................................................................. 26
5 MAGI2C OPERATION ............................................................................................... 27
5.1 SET THE CYCLE COUNT REGISTERS (0X04 – 0X09) .............................. 28
5.2 INITIATE CONTINUOUS MEASUREMENT MODE (0X01) .......................... 29
5.2.1 Setting the CMM Update Rate with TMRC (0x0B) ........................... 30
5.2.2 Alarm Mode ...................................................................................... 31
5.3 INITIATE A SINGLE MEASUREMENT (0X00) ............................................. 34
5.4 CONFIRM NEW DATA READY .................................................................... 35
5.4.1 STATUS Register (0x34) .................................................................. 35
5.5 READ THE MEASUREMENT RESULTS ...................................................... 35
5.6 TROUBLESHOOTING AND GENERAL INFORMATION ............................. 36
5.6.1 Built-In Self Test Register (0x33) ..................................................... 36
5.6.2 HSHAKE Register (0x35) ................................................................. 37
5.6.3 REVID Register (0x36) ..................................................................... 38
5.7 EXAMPLES USING THE SPI INTERFACE .................................................. 38
5.7.1 Set the Cycle Count Registers ......................................................... 38
5.7.2 Making and Reading Measurements ................................................ 39
5.8 EXAMPLES USING THE I
2
C INTERFACE ................................................... 41
5.8.1 Set the Cycle Count Registers ......................................................... 41
5.8.2 Initiate a Single Measurement .......................................................... 42
5.8.3 Initiate Continuous Measurement Mode ........................................... 42
5.8.4 Read the Measurement Results ....................................................... 42