Pni RM3100 Evaluation Board Manual de usuario descargar pdf (Pagina 2)

PNI Sensor Corporation Doc 1017252 r02

RM3100 Evaluation Board User Manual Page 1 of 33

Table of Contents

1 COPYRIGHT & WARRANTY INFORMATION ............................................................ 3

2 INTRODUCTION .......................................................................................................... 4

3 SPECIFICATIONS ....................................................................................................... 5

3.1 RM3100 EVALUATION BOARD CHARACTERISTICS .................................. 5

3.2 DIMENSIONS .................................................................................................. 7

4 RM3100 EVALUATION BOARD OVERVIEW & SET-UP ........................................... 8

4.1 PCB ORIENTATION AND OUTPUT POLARITIES ......................................... 8

4.2 LOCAL MAGNETIC FIELD CONSIDERATIONS ............................................ 8

4.3 RM3100 EVALUATION BOARD PIN ASSIGNMENTS ................................... 9

4.3.1 General Purpose Pins ........................................................................ 9

4.3.2 SPI Pins ............................................................................................ 10

4.3.3 I

C Pins ............................................................................................. 11

4.4 SPI TIMING REQUIREMENTS ..................................................................... 12

4.5 I

C REQUIREMENTS .................................................................................... 14

4.5.1 I

C Register Write ............................................................................. 14

4.5.2 I

C Register Read ............................................................................. 15

5 RM3100 EVALUATION BOARD OPERATION ......................................................... 16

5.1 SET THE CYCLE COUNT REGISTERS (0X04 – 0X09) .............................. 17

5.2 INITIATE CONTINUOUS MEASUREMENT MODE (0X01) .......................... 18

5.2.1 Setting the CMM Update Rate with TMRC (0x0B) ........................... 19

5.2.2 Alarm Mode ...................................................................................... 20

5.3 INITIATE A SINGLE MEASUREMENT (0X00) ............................................. 23

5.4 CONFIRM NEW DATA READY .................................................................... 24

5.4.1 STATUS Register (0x34) .................................................................. 24

5.5 READ THE MEASUREMENT RESULTS ...................................................... 24

5.6 TROUBLESHOOTING AND GENERAL INFORMATION ............................. 25

5.6.1 BIST Register (0x33) ........................................................................ 25

5.6.2 HSHAKE Register (0x35) ................................................................. 26

5.6.3 REVID Register (0x36) ..................................................................... 27

5.7 EXAMPLES USING THE SPI INTERFACE .................................................. 27

5.7.1 Set the Cycle Count Registers ......................................................... 27

5.7.2 Making and Reading Measurements ................................................ 28

5.8 EXAMPLES USING THE I

C INTERFACE ................................................... 30

5.8.1 Set the Cycle Count Registers ......................................................... 30

5.8.2 Initiate a Single Measurement .......................................................... 31

5.8.3 Initiate Continuous Measurement Mode ........................................... 31

5.8.4 Read the Measurement Results ....................................................... 31

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Pni RM3100 Evaluation Board Manual de usuario Pagina 2

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