Sam SAM-III Instructions for use














 !"

File: SAM-III Magnetometer Construction.doc, Page 0



SAM-III Construction Manual




Table of Contents

Section Page

I. Description 1
II. General Building Tips 3
III. Separate t e Controller PCB and Keyboard PCB 4
IV. Install Keyboard Components 5
V. Install t e Power Supply Components 7
VI. Test t e Power Supply 11
VII. Install t e Logic Circuits 13
VIII. Install t e Display Components 17
IX. Install t e Ribbon Cables 18
X. Wire t e EIA-232 Serial Port Cable 20
XI. Testing and Adjusting 23
XII. Load t e Microprocessor Operating System Firmware 36
XIII. SAM Display and Keyboard Reference Information 44
XIV. Install t e Controller, Keyboard and LCD in t e Enclosure 47
XV. Magnetometer Sensor Hookup 53
XVI. Magnetometer Sensor Installation 63
XVII. Temperature Sensor 69
XVIII. Circuit Description 71
Appendix Using SysInternals PortMon 77
Document History 80


#$#!
!"%&$#&$" %'(!)#$*&$'+
I. Description

"!# ,-
.&&/ 01/$,&.-&231 
,%.-*/&4*$$"&&
&%&$#*

/%%!##%$#&/ "15!%"! *
!"$&!"$&#!'.$#$$"+6(788
$"$*$"$"&!&'!&!#"#*/$
"$%$% 
•)""! ±9::::
•!#)+;4
•$%+'4
•$"$$!!&'+63<$!$1
•0&"! &/$1!=4:0, !!.>&&-
•#&&&44!%$
•2&!/!!#"#,&?#/!:***@9A4*9***@4*9A-
•!$!$1./$1#"/ 
•(! #"#%2&!,#$$4::A&$A$"1'+*:&$
$"1'$/$&4:.-
•"!&"#%&$%!!$&&$#
•%.#"&#!44!%$
•.)+4A&$6:+::,&"&#/%$$&-
•0,"!$!#-)4::++46=
•"#$"/! 
•$)
•>)!#/!!/!$1'7"
•)!#/!!/!$1'+:"
•44)0BC
•&$".$!4*+9*9'$@
•2 /&$!)
•&&,(+-
•!/&,(4-
•%.,(-
•0"! /$1!,(=-
•""!$%.)
•DAE
•D
•DBE
•D


#$#!
!"%&$#&$" %'(!)#$*&$'4
&

" &%%$/.&)
+* &&&&
4* &&&"87:9!#!%$%
* &&&%#0,8=3::-%#!"!&
=* !&!#"#,/$#%$"$>!-&$&#"#
""97*#"#.2&&$&#$
9* "!$&0$$."!#/!$.!/!$1&
6* "!$&1 /&.$.#%$# "
8* &&&"#"#,&%$!F#&-
7* !! !!$!!B
C* "!$&$"$%.

%1$"$&#!!!/!*&%$
F#"!$$"$%.&!!!!&#/&B'
1&.&$$&'%$#'1#"&*

!%!!""!$".#&.$/#&.
$"F#.D"*%.#""&&
%.#"#&*

B#!&

% #/#!& #!%)B% #' ##!&%&#!!#!$&
%!!.&&#$#$*.!!! &#$$$%*% #
$/#!&.#%!!.#!' #& #."!&! 
$ #$$%%!#*

% #"#$&/#!&",">B0+-. #'"&$$#/&,B-!& 
/!&&$/&$#G%#!&$"!&B/
&&/#&%84#*H##!&.$#G& #!#!&&
$*G%!< #!%.&"! &1 /&*%'$GA%
!!%&"! &B"!$!#,">+-*$$
!!&&&!&.%*

NOTICE: All parts in t e SAM-III Kit are new. However, t e reclosable (ziplock) bags olding
t e parts may be recycled. Your kit may include bags wit extraneous writing or stickers on
t em. Ignore any suc markings.

#$#!
!"%&$#&$" %'(!)#$*&$'
II. General Building Tips – READ THIS BEFORE STARTING:

1/#!#$!!$$$#$$F#*!!$"
#! "$""#/#1 /&'.$
H#.!!&&!!#!""! /!&1*#//!&
$#"9::1&!#"/#4:A&$*
B%/! '"% %!!$";%!SAM Kit Parts List.xls
0
" !!& ! /$!&.",%"!'
$$$$-'/$%#!" $!/!"!$/&1"$1%"
&# &&#/! 
 # ""#/$1/ !
#""!&.1  $!$&&"&$!#*$!'
%#&' !!$&/&%%$#!&*%!!!#.
6/86:/=:!&.&I:*:+*,:*7-*(#%$#$! 
,-#:*:+9*,:*=-*&%!&$&&$"/ /#!&.$&/!
"$#!&%!&*&%!&F#&! $"/! 
%B&$"&'"$!! % $"/"!$&%!!
!&$"!&#&&"& F#6:E!&J! #
!&. %"
 "#$!!&!&+99:KJ#!."#.1
/.!&&!&"*"// "!&$&& 
.!#$%!&$F#%$ 
"F#&%$#$!&/!/%$$*$
$"#"%$"!&&&&'"!$$$11/"&&
00%!!."!$$/%/!!&
 $"
&porcupine effect'!!! %#$"$*%!&
!!#"%$"'!&!.%!#$#.$#/#!
!!%$!&/!.B,""! +>+6L+4-
%$"!$$%$#$#!'#% !&/.1!
$& !&?%&/&$!&!&?*0"$&.
$#!"&
!&%$""&*0"#!!!&#%"&
B*"# $"%%&1!&&%%$#!*"! %!&
"! $!""%!&$$"
0#!!,0-&$$#&$1.!!&"!$&&#
/&&$&B!1$
0&/"&&#/&./&$&B
!1$
!$! $$"$1&./&'&$!&'&%
!&!'&$"!&*",!-!&#/&!.@
 /!&$&B!1$
!!&$$#&$&#$&$$$,"&&
!##%!-#! /!!&
$"$.!!&!&$$#&$&#$
&$
%&$$#&$&#$&$!!&B'#$"$
.&!B


#$#!
!"%&$#&$" %'(!)#$*&$'=
III. Separate t e Controller PCB and Keyboard PCB

F#&")

Parts list ID
Qty
Description


+

&$$#/&


"$1&1'"&$$#/&,B-"".!!#/!.*
$#!! $%.B?&/ !!/&,./-*!%"%1 /&
&"%$!!*B.&'!&&&!1$&*



B%"!$ $"'$%#!! $#!!/&/.$!!B&
1 /&B.%.#$&!M.*0"/1./&"
.#$#/$#!1!& /&.!!/&&*

%".B'"&$/&&&&.%&""
%!* /!"%#!&.$B/.."$%%.&&$!"
.!$#J&$!"B&$! ?.*



#$#!
!"%&$#&$" %'(!)#$*&$'9
IV. Install t e Keyboard Components

F#&")

Parts lis
t ID
Qty
Description
09


+

0''&
►

A


+

+:

"B&
►

4

'

'=

'9


=

#/#,0-

►&$" "! &$



!!%#"#/#&&0",!1$&-&//$/!$1
/)

!&%#"#/#!1$&%B*:*:+9*,:*=-&
!&& %!&"*"#/#! #%$#&$
,0-1*('%"&%$
"#/#&"!$ !!#%!&*
'"!$%"#/#%#"&'
$*'!&"#/#&.&
"&.!&;.!!$1"#/#*B
#"#/#&%. #$1*%&
%'"! &&?#*(!! '!&
"&&#%"&&&&!!
!&$"!"!$*!!#,-
"/%$"#/#
!&0.!&,$&-!&%/&*%
1 /&.!!/#&"!$!#'/& %0.!!/&
!! *$'0#%!/%0/& %!#
."#/#/& 
#/&#"&&.&+:"B&."#,$
"!<!-&%/&*!&""&*)
+:"B&.!'$&%%$*B#!
!"$%&

0#/!$$1!!$"%!$&$$1"! $",0&
B&-
 0#/!$$1!!!&

E1 /&B%&#!&!1!1!!#/!.*1 /&B&*


#$#!
!"%&$#&$" %'(!)#$*&$'6




#$#!
!"%&$#&$" %'(!)#$*&$'8
V. Install t e Power Supply Components

F#&")

Parts list ID
Qty
Description
+6


+

'

67++>=.

4

'8

'C




'+1'+>7.,+::+-

4:

'44


4

'414'+>7.

+

'7

'+:




'+:1'+>7.,+::4-

+4

'+=


4

'+:1'+>7.,+::4-

+9


+

'C1'+>7.



'=

'9




'+::1'+
>7.,+::-

6

'++

'+




'+::1'+>7.,+::-

+8

'+7

'4+




'+::1'+>7.,+::-

+C


+

'=8:1'+>7.,=8:-

0+


+

0&'+=::8
►

04

'0


4

0&'+=+=7
►

0=


+

0&'+97+C$1 
►

+

'4

'





"$'$$'+::
(

=

'9

'6




"$'$$'+:
:(

8

'7

'C




"$'$$'+::(

+:

'++

'+4




"$'$$'+::(

+9

'+6

'+8




"$'$$'+::(

+7

'4+


4

"$'$
$'+::(

+

'+=


4

"$'!$! $'+:
µ
(>49A►
9


+

A!$'866:'
;
9A#
►

4


+

A!#!87:9'

44:'@9A>+



+

=

=:9>+6*$.'.5#

+

'

'=




A!#!87:9'

C4'@9A>+::

+



+

#/ 'A'

"

G+


+

B
&$1
'7

"

G4


+

B&$1'+:

"

G+


+

!#/!$.!/!$1'7

"

G4


+

!#/!$.!/!$1'+:

"



+

B&'

"'4",+

:

+$%#-
►



+

$$1#
'



"

'/!$1



4

!$1$$'/ "



+

4=E.'+9$!'



+

4=E.'+9$!'



4

31#/'+:!



+

!".?$1'4*+9*9'"!#
►



+

!&$"."!#'4*+

9*9



$".&"

+

+4A0>4::,#""!&$"$$ -



$1

4

+=

":**0,#""!&-
►



$1

4

7

":**0,#""!&-
►



$1

+

+6

":**0,
#""!&-
►



$1

+

+7

"
:*
*0,#""!&-
►



$1

+

6

":**0,#""!&-
►

►&$" "! &$


#$#!
!"%&$#&$" %'(!)#$*&$'7


!!!!!&$"",!1$-&%B&!&/*!
%B.$*GG*

!&!!
!&&&*0&"! &#/!!&.""
*/"&%&&&$$&&#
$"&./B!1$
!&!!+::($$$"$,$"$"! & /
"!$&&$-
!&!#!4*&&'&/&!&4
/& J/&/#4. %/& *!&#!&//44:/
$!%!B.!!&#"*==:&.,#""!&-$$!! 
$#/J$..%!.%/%B
!&&$$#!#!+''=&9'/""
*/#!&"%!!9&#!!,0-$1,"-
% #"!#0$1.&$$#'!!.*0$1
#""!&.1*0!!=:"$1%$"$+:*
)6"0$1$/&%7"!$1/ $#&.
!&.!$! $$"$J$"$"! &#/
!!&.""*/1&&%$"$&$
!&'&!!&"*B#"#!!&!
1&.@"! 
!&"!#/!!/!$1*! !! <&'1$!
!/!$1"!!!B&