ST ST72F651 User manual

September 2007 Rev 1 1/30
UM0452
User manual
Temperature sensor evaluation board
Introduction
This document explains the functioning of the temperature sensor evaluation board which
consists of the ST72F651 microcontroller, STLM75 and STDS75 as temperature sensors,
and NAND Flash.
This board can operate in 2 modes:
■Standalone / external power mode
■USB powered mode
The configuration and operation of the evaluation board in both modes is explained in
different sections.
To select the desired mode, there is a power selection switch (S1) on the board which
enables the appropriate selection.
When this evaluation board is connected to the computer through a USB cable it also
functions as a mass storage device. The default state of the evaluation board is mass
storage mode. It switches over to temperature sensor mode using GUI.
Figure 1. Temperature sensor evaluation board (STEVAL-IFS003V1)
www.st.com

Contents UM0452
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Contents
1 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2.1 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2.2 Power supply selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 External power mode of evaluation board . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Powering of evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Address selection on the evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2.1 Address configuration of TS1 using the switches . . . . . . . . . . . . . . . . . . 9
3.2.2 Address configuration of TS2 using the switches . . . . . . . . . . . . . . . . . 10
3.3 Values of temperature sensor registers in standalone mode . . . . . . . . . . 11
3.4 Behavior of FAN in standalone mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5 Sequence of operation of evaluation board in standalone mode . . . . . . . 12
4 USB power/GUI mode of evaluation board . . . . . . . . . . . . . . . . . . . . . . 12
4.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 Powering of board in GUI mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3 Switching to temperature sensor mode . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3.1 Address selection in GUI mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.2 Address selection for TS1 (SO-8 package) . . . . . . . . . . . . . . . . . . . . . . 15
4.3.3 Address selection for TS2 (TSSOP-8 package) . . . . . . . . . . . . . . . . . . 15
4.3.4 Temperature sensor application selection . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.5 Address checking using GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3.6 Setting of temperature sensor registers . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.7 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.4 RTC mode of GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.4.1 RTC date and time setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.4.2 RTC alarm setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.4.3 RTC SYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.5 Plotter mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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4.5.1 Dynamic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.5.2 NAND mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5 Behavior of LEDS and buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1 Power status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 Application LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.3 Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.4 Evaluation board schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.5 Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

List of figures UM0452
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List of figures
Figure 1. Temperature sensor evaluation board (STEVAL-IFS003V1) . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Temperature sensor evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Power selection switch to select external power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4. Power selection switch to select for USB power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 5. Logical level and relative switch positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 6. Default settings of TS2 to select TS1 on board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7. Default settings of TS1 to select TS2 on board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 8. GUI on start up with board not connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 9. Board connected to GUI and status changed to connected in status bar. . . . . . . . . . . . . . 14
Figure 10. Temperature sensor mode selected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 11. Temperature sensor window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 12. Address error message display on GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 13. Active temperature sensor window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 14. Temperature sensor register settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 15. RTC window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 16. Plotter window for dynamic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 17. Plotter window with dynamic mode graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 18. Plotter window with NAND mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 19. Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

UM0452 Abbreviations
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1 Abbreviations
2 Getting started
2.1 Package contents
The temperature sensor evaluation board includes the following items:
●Hardware content
– One evaluation board.
●Documentation
–Usermanual
●GUI installation file
Table 1. Abbreviations
Word Abbreviation
BLDC Fan Brushless direct current fan
GUI Graphical User Interface
LCD Liquid crystal display
USB Universal serial bus
RTC Real time clock
°C Degree Centigrade

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2.2 Hardware description
Figure 2. Temperature sensor evaluation board
2.2.1 Components
Major blocks present on the board are:
●Temperature sensor SO-8 package: STDS75M2F/STLM75M2F
●Temperature sensor TSSOP-8 package: STDS75DS2F/STLM75DS2F
●Microcontroller : ST72F651AR6T1
●NAND Flash : NAND512W3A0AN6
●BLDC FAN: 5 V
●RTC: M41T81S
●Graphic LCD (122 X 32)
●Button battery: 3 V
●AC buzzer
●Power socket for external power supply
●USB jacket for USB connection
●Switches TS1 and TS2 to configure the address of the temperature sensor
●Power selection switch (S1) to select between external power and USB power

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2.2.2 Power supply selection
The board can work in two different power supply modes.
1. External power mode
2. USB powered mode
Selection of required power mode is done by the S1 switch.
1. External power mode selection:
To select for external supply mode place the switch as shown in Figure 3. Then plug in the
12 V adapter with a female connector to the power jacket (J1) and the green LED (EXT)
lights up.
Figure 3. Power selection switch to select external power
2. USB powered mode selection:
To select for USB powered mode plug out the external power supply and then turn the
power switch as shown in Figure 4. Then plug in the USB cable in the USB socket (J2) on
the board. The red LED (USB) lights and board will be powered up with USB power.
Figure 4. Power selection switch to select for USB power
Note: Only one power supply should be plugged in at once. The power LED ( green for external
supply and red for USB supply) lights up as soon as the power is plugged in, but power is
connected to the board only by the appropriate switch settings as shown in Figure 3 and
Figure 4.

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3 External power mode of evaluation board
This mode is also called standalone mode of the evaluation board. In this mode the board is
supplied by an external power supply and continuously displays the time and temperature
on LCD. We do not need any computer interface for this mode.
3.1 Powering of evaluation board
To power up the board, follow these steps:
1. Select the power selection switch (S1) to external power mode as explained above.
2. Plug in the DC power supply through adapter (7.5 V - 19 V output). As soon as power is
plugged in, the green LED (EXT) lights up.
Note: This LED (EXT) shows only that power is connected or not. Power to board is selected
through the power selection switch (S1).
3.2 Address selection on the evaluation board
There are a total of 6 address switches on the board: three for temperature sensor 1 (TS1)
and the other three for temperature sensor 2 (TS2).
Switches A0, A1, A2 are used for configuring the address lines of the temperature sensor 1
and A0#, A1#, A2# are used for configuring the address lines of temperature sensor 2.
Logic level is assigned to the address line using the address selection switches. Figure 5
shows the position of the switch and the respective logic level assigned by that switch.
Note: Address 0x9E is used for selecting the temperature sensor package on the board.
If TS1 = 0x9E then TS2 is selected for temperature measurement and if TS2 = 0x9E then
TS1 is selected for the temperature measurement.
Figure 5. Logical level and relative switch positions

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3.2.1 Address configuration of TS1 using the switches
To select the temperature sensor 1 (TS1) follow these steps:
1. Put all the switches of TS2 (A0#, A1#, A2#), to logic level 1.Condition shown in
Figure 6.
Figure 6. Default settings of TS2 to select TS1 on board
2. Configure the addresses of temperature sensor 1 (TS1) using the switches. In
standalone mode seven addresses are allowed for TS1. These addresses are 0x90,
0x92, 0x94, 0x96, 0x98, 0x9A, 0x9C.
3. The allowed addresses and their settings for TS1 are as follows:
– Address 1 = 0x90, => A2 = 0, A1 = 0, A0 = 0
– Address 2 = 0x92, => A2 = 0, A1 = 0, A0 = 1
– Address 3 = 0x94, => A2 = 0, A1 = 1, A0 = 0
– Address 4 = 0x96, => A2 = 0, A1 = 1, A0 = 1
– Address 5 = 0x98, => A2 = 1, A1= 0, A0 = 0
– Address 6 = 0x9A, => A2 = 1, A1 = 0, A0 = 1
– Address 7 = 0x9C, => A2 = 1, A1 = 1, A0 = 0
Table 2. Switch settings for selecting a different address of TS1 on board
Address
lines
Address 1
0x90
Address 2
0x92
Address 3
0x94
Address 4
0x96
Address 5
0x98
Address 6
0x9A
Address 7
0x9C
A0
A1
A2

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After setting the address press the reset button (S2) present on the board.
The board then functions showing the temperature and time on LCD.
Note: If the address setting for TS1 is other than as shown in Ta bl e 2 or if the switches of TS2 are
not all set to 1 (as shown in Figure 6) then an error message appears on the LCD
"ADDR.ERROR" in which case, reconfigure the correct address of TS1 and again press the
reset button (S2).
3.2.2 Address configuration of TS2 using the switches
To select the temperature sensor 2 (TS2) follow these steps:
1. Put all switches of TS1 (A0, A1, A2) to logic level 1 as shown in Figure 7.
Figure 7. Default settings of TS1 to select TS2 on board
2. Configure the addresses of temperature sensor 2 (TS2) using the switches. In
standalone mode seven addresses are allowed for TS2.
These addresses are: 0x90,0x92,0x94,0x96,0x98, 0x9A and 0x9C.
The allowed addresses and their settings for TS2 are as follows:
●Address 1 = 0x90, => A2# = 0, A1# = 0, A0#= 0
●Address 2 = 0x92, => A2#= 0, A1# = 0, A0# = 1
●Address 3 = 0x94, => A23 = 0, A1# = 1, A0# = 0
●Address 4 = 0x96, => A2#= 0, A1# = 1, A0# = 1
●Address 5 = 0x98, => A2# = 1, A1# = 0, A0# = 0
●Address 6 = 0x9A, => A2# = 1, A1# = 0, A0# = 1
●Address 7 = 0x9C, => A2# = 1, A1# = 1, A0# = 0