EVAL-ADM1022 Datasheet, PDF (5/14 Pages) Analog Devices – Evaluation Board for Microprocessor System Temperature Monitor

D2/THERM SELECT SWITCH, SW3
This switch selects either the on-board 2N3906 tempera-
ture sensing transistor, or an off-board transistor con-
nected to the D2 inputs of test connector J4.
If a second thermal diode is unwanted, the THERM func-
tion on the ADM1022 may be used. If THERM is se-
lected, LED D7 will indicate any over-temperature
measurements.
TABLE 5. D2/THERM SWITCH, SW3
SW3 Position
Selected Function
A
Remote D2 on J4
B
Over-temperature and fan full-on
status on LED D7
C
On-board 2N3906
EVAL-ADM1022
INSTALLING THE SOFTWARE
To install the software, insert the first disk of the program
software supplied into drive A, click on the Start icon,
click on Run, and then type A:setup.exe as the file name.
If the 3.5-inch floppy disk drive is not drive “A”, type
“X” instead of “A”, where “X” is the drive letter of the
3.5-inch floppy disk drive.
USING THE SOFTWARE
When using the software, first ensure that the evaluation
board is connected to the Parallel printer port, or to the
PC’s SMBus using the DIMM interface card.
To start the software, select Start- Programs- ADM1022
Evaluation Software.
When the program is started, the Software Initialisation
Wizard screen will appear.
RESET SWITCH, PB2
When this pushbutton switch is pressed, it will assert
RST2 low. RST2 will remain low for t_RP after PB2 is re-
leased. This can be used to reset some external circuitry.
FAN FULL-ON SWITCH, PB1
When this pushbutton switch is pressed, THERM is
pulled low. This causes the FAN_SPD output to go full-
scale (2.5V), and the fan goes to full speed. The FAN
FULL-ON LED, D7 also lights up.
TABLE 6. INDICATOR LED’s
LED
WHEN LIT
D1
When RST2 asserts on power-up or PB2
is pressed.
D2
When RST1 asserts on power-up.
D3
When FAN_OFF output is asserted.
D4
When board is powered.
D6
When an interrupt condition occurs.
D7
When an over-temperature condition oc-
curs (THERM asserted), or when the fan
is set to full speed by pressing PB1.
THE SOFTWARE
The software allows the ADM1022’s functions to be con-
trolled from the PC via an easy to use interface, operating
under the Windows environment. The contents of the
device’s internal registers can easily be read or altered
through a user-friendly graphical interface, while the Vi-
sual Display window allows temperature readings to be
graphed.
REV. B
–5–