User manual
ATHENA CPU User Manual V1.40 Page 2
ATHENA
High-Performance Rugged Embedded CPU with Data Acquisition
TABLE OF CONTENTS
1.
D
ESCRIPTION
..................................................................................................................................5
2.
F
EATURES
....................................................................................................................................... 6
3.
AT
HENA
B
OARD
D
RAWING
.............................................................................................................8
4.
I/O
H
EADERS
...................................................................................................................................9
4.1
PC/104 Bus Connectors .............................................................................................................. 9
4.2
Main I/O Connector – J3 ..........................................................................................................10
4.3
Input Power – J11 .....................................................................................................................12
4.4
Output Power – J12 ..................................................................................................................13
4.5
Ethernet – J4 .............................................................................................................................13
4.6
USB – J5 (USB 0/1), J21 (USB 2/3).......................................................................................... 13
4.7
Watchdog Features – J6............................................................................................................14
4.8
IDE Drive – J8 ..........................................................................................................................14
4.9
Data Acquisition I/O Connector – J14 (Models with Data Acquisition only)...........................15
4.10
LCD Panel (LVDS Interface) Connector – J24.........................................................................16
4.11
LCD Backlight Connector – J28 ...............................................................................................17
4.12
CPU Fan Connector – J27........................................................................................................17
4.13
VGA Connector – J25 ............................................................................................................... 18
4.14
Audio I/O Connector – J15 .......................................................................................................19
4.15
CD Input Connector – J30 ........................................................................................................20
5.
J
UMPER
S
ETTINGS
........................................................................................................................ 21
5.1
J10: System Configuration ........................................................................................................ 21
5.2
J13: Data Acquisition Circuit Configuration............................................................................23
5.3
J6: Watchdog Timer & System Recovery ..................................................................................24
6.
S
YSTEM
F
EATURES
....................................................................................................................... 25
6.1
System Resources ......................................................................................................................25
6.2
COM Port / FPGA / Watchdog Control Registers ....................................................................26
6.3
Console Redirection to a Serial Port ........................................................................................ 27
6.4
Flash Memory ........................................................................................................................... 28
6.5
Backup Battery .......................................................................................................................... 28
6.6
System Reset .............................................................................................................................. 28
6.7
On-Board Video ........................................................................................................................ 28
7.
BIOS .............................................................................................................................................29
7.1
BIOS Settings ............................................................................................................................ 29
7.2
BIOS Console Redirection Settings...........................................................................................31
8.
S
YSTEM
I/O ...................................................................................................................................32
8.1
Ethernet..................................................................................................................................... 32
8.2
Serial Ports ...............................................................................................................................32
8.3
PS/2 Ports .................................................................................................................................33
8.4
USB Ports.................................................................................................................................. 33
9.
N
OTES ON
O
PERATING
S
YSTEMS AND
B
OOTING
P
ROCEDURES
.................................................. 34
9.1
Windows Operating Systems Installation Issues .......................................................................34
9.1.1 Driver installation .....................................................................................................................................34
9.1.2 BIOS Settings for Windows......................................................................................................................34
9.2
DOS Operating Systems Installation Issues..............................................................................35
10.
D
ATA
A
CQUISITION
C
IRCUIT
–
I/O
M
AP AND
R
EGISTER
D
ESCRIPTIONS
..........................................36
10.1
Base Address .............................................................................................................................37
10.2
Data Acquisition Circuit Register Map ............................................................................. 38
10.3
Register Bit Definitions .............................................................................................................39
11.
A
NALOG
-
TO
-D
IGITAL
I
NPUT
R
ANGES AND
R
ESOLUTION
................................................................51
11.1.1 Overview.................................................................................................................................................51
11.2
Input Range Selection........................................................................................................51
11.3
Input Range Table ..............................................................................................................51
12.
P
ERFORMING AN
A/D
C
ONVERSION
.............................................................................................52