User Guide

NPL-4/5
System Module and User Interface Nokia Customer Care
Page 4 Copyright © 2004 Nokia Corporation. All rights reserved. Issue 1 05/04
Tilt (s).................................................................................................................................................. 45
HW Block Diagram ............................................................................................................................... 46
HW block functions ...........................................................................................................................46
Magnetometer Sensor......................................................................................................................... 48
Main features ......................................................................................................................................48
Block diagram ......................................................................................................................................49
Magnetometer control interface ...................................................................................................49
Pin Assignment................................................................................................................................ 49
Test Circuitry.......................................................................................................................................... 51
MagIC ASIC....................................................................................................................................... 51
Main features ......................................................................................................................................52
Block diagram and functional descriptions ................................................................................52
MagIC control interface ...................................................................................................................53
Pin assignment ................................................................................................................................ 53
MagIC ASIC interface - Magnetometer sensor...................................................................... 53
MagIC ASIC – UPP interface........................................................................................................ 54
MagIC ASIC – UEME interface.................................................................................................... 55
MagIC ASIC – UPP - External power supply interface......................................................... 55
MagIC - magnetometer sensor interface for constant current driver............................. 56
Power supplies .....................................................................................................................................56
Introduction...................................................................................................................................... 56
Using VIO for DVDD supply.......................................................................................................... 56
Using external regulator for AVDD............................................................................................ 56
Compass and phone basics ..............................................................................................................57
Phone directions .................................................................................................................................57
General description ............................................................................................................................58
Operation modes............................................................................................................................. 58
Compass function main features ...................................................................................................58
Compass display menu.................................................................................................................. 58
Compass display results................................................................................................................ 58
Compass calibration SW ........................................................................................................
...........59
User assisted calibration............................................................................................................... 59
Compass declination menu ..............................................................................................................59
Testpoints................................................................................................................................................ 60
Set/Reset ...............................................................................................................................................60
VBRIDGE ................................................................................................................................................60
Channel output A ...............................................................................................................................60
Channel output B ...............................................................................................................................60
Service Software Interface (Phoenix) ............................................................................................. 61
Performance........................................................................................................................................... 62
Calibration basics ...............................................................................................................................62
Calibration process flow ...................................................................................................................63
Compass digital values, limit values .............................................................................................63
Clock distribution ...............................................................................................................................65
User Interface ........................................................................................................................................ 66
Display .......................................................................................................................
............................66
UI Board ................................................................................................................................................67
Power supply for LEDs .......................................................................................................................68