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DESCRIPTION
The DS1615K and DS1616K are designed to demonstrate, exercise, and control the features of the
DS1615 Temperature Recorder or DS1616 Temperature and 3-Input Data Recorder. In addition, these
kits can also be used to program the registers, memory, date, alarm, and trip points of both devices. As
shown in Figures 1 and 2, the evaluation board includes a DS1615 or DS1616 integrated circuit, support
components, and connectors. The kit also comes with an RS-232 cable, and media containing the
documentation and software to operate the kit and design with the DS1615. The DS1615K may be used
in a Windows95/98 or NT environment. The Latest revision kit software and source code in Microsoft
Visual C++ are available on the Dallas FTP site: ftp://ftp.dalsemi.com/pub/datalogging/.
Figure 1. DS1615 Evaluation Board Figure 2. DS1616 Evaluation Board
HOST SYSTEM MINIMUM REQUIREMENTS
• Pentium or equivalent
• Microsoft Windows95/98 or NT/Windows 2000 operating system
• 3.5” disk drive / CD ROM drive*
• Serial port for interfacing over serial port cable with the evaluation board
* Early versions may contain floppy disks, later versions will be on CD-ROM.
DS1615K/DS1616K
Temperature/Data Reco rde
r
Evaluation Kit
www.dalsemi.com
BAT S1
DS1615
JP2
JP1
U2
U1
BAT
S1
DS1616
JP3
JP1
U2
U1
JP2
DS1615K / DS1616K
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INSTALLATION
To install the software included with this evaluation kit, put the Disk (Disk 1 for floppies) into the
appropriate drive:
1. Click on the “Start” button or press the windows “Start” key on the keyboard.
2. From the “Start” command box choose “Run…”
3. From the “Run…” command box type A: Setup (or the appropriate drive letter) and choose “OK.”
This will start the “Setup Wizard”.
4. Press the “Next” button to continue the installation.
5. The “Setup Wizard” will pick the default directory to locate this program as a sub-directory of the
“Programs” directory. To use the default click the “Next” button or select a different directory and
click the “Next” button.
6. You will then have a chance to review all of the information that you have selected. Click the “Next”
button to begin loading files from the disk drive.
7. For floppy disk installation, when requested to do so, replace Disk 1 with Disk 2 and click “OK”. This
will complete the software installation and will create an icon on your desktop.
8. A screen may appear telling you that one or more .dll files have not self-registered. This is not a
problem. Your system already contained the required files so the copy provided was not used. The
program will operate correctly with the files already installed on your system.
NOTE:
All of the available documentation for the DS1615, and DS1616, the evaluation kits and application note
116 are available on the Dallas Semiconductor web site at:
http:/www.dalsemi.com/DocControl/index.html.
COMMUNI CATION WITH PC
In order for the evaluation kit to communicate with your PC, you must connect the evaluation kit board
to a free serial port with the included serial port cable. The cable has a standard 9-pin DB9 connector.
If your system is equipped with a 25-pin connector, you can purchase a 25-pin to 9-pin adapter at most
computer stores.
When the software is run, a dialog box will request the user to specify which serial port is connected to
the evaluation board.
Many laptop PCs do not have the required 5 volt minimum output from the RS-232 port to power the
evaluation board and therefore will not communicate with the evaluation kits. With less than 5 volts to
power the board, the regulated Vcc level never exceeds the 4 volt threshold for communications. One
way around this problem is to disconnect the Vdrive_in circuit from pin 4 of the RS-232 connector
which will isolate the Vdrive_In circuit from the RS-232 port of the PC. This signal will normally be
used to power the evaluation board. If the Vdrive_In circuit is then connect ed to the positive terminal of
a 9-volt battery or other power supply of greater than 5-volt, the device will work without a problem, as
long as the power source is connected prior to initiating any RS-232 communications. If the PC tries to
communicate with the board while the power source in not connected or less than 5 volts, the RS-232
driver on the board may latch-up. The power source is only required for communication with the board.
All other board functions can be supplied by the 3.6 volt battery on the board itself.
DS1615K / DS1616K
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EVALUATION BOARD CONFIGURATION
The DS1615 or DS1616 evaluation board may be configured for synchronous or asynchronous
communications. Note: The kit software provides for asynchronous communications only. The
asynchronous option is internally selected automatically with a pulldown resistor inside the chip itself.
The software included with this kit was developed to communicate with the evaluation board over an
asynchronous, RS-232 serial port. To select asynchronous communication, pins 2 and 3 on jumper JP1
should be shorted together. To select synchronous communication, short pins 1 and 2 together. When
synchronous communication is selected, interfacing with the device is facilitated by the SCLK, I/O, and
RST# pins which are available on jumper JP2. The board will require 5-volt power when using the
synchronous communications just like when using the RS-232, but there is no ability to steal the power
from the incoming signal lines as was done with the RS-232. For this reason, 5 volt must be applied to
the board either through pin 4 of the RS-232 connector set to 5 volt or greater, or pin 1 of the 5 volt
regulator. Future revisions of the board will have a Vin pin on the J2 header with the 3-wire signal
lines. Consult the datasheet for the functionality of these pins.
Table 1: J1 Pin Descriptions
Pin Signal
1 Asynchronous
2 ComSel pin
3 Synchronous
Table 2: J2 Pin Descriptions
Pin Signal
1 SCLK – serial clock
2 I/O – input/output
3 RST# - communication reset
4 INT# - Interrupt output
DS1615K / DS1616K
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Figure 3: EVALUATION BOARD SCHEMATIC – DS1615K
1 2
R1
1K
1 2
R2
1K
D1
LED
D2
LED
D3
1N4001
1 2
D4
BATTERY
1 2
X1
32.768 kH z
1
6
2
7
3
8
4
9
5
J1
DB9
1 2
S1
SW-PB
BAT
X1
X2
D1
D2
TX_IN
RX_OUT
VCC
VDRV_IN
RX_IN
TX_OUT
GND
TX_IN RX_OUT
Vbat
1X1
2X2
3NC
4INSPEC
5OUTSPEC
6INT
7GND
8ST 9
RST 10
I/O 11
SCLK 12
TX 13
RX 14
COMSEL 15
Vcc 16
U2
DS1615
Vin
1
GND 2
Vout 3
U3
LM78L05ACZ
C1
.01uF
C3
.1uF
C2
.01uF
C4
.1uF
VCC
1
2
3
4
J2
HEADER 4
1 2
R3
10K
VCC
C6
22uF
1
2
3
JP1
HEADER 3
TP1
TEST_POINT
RXOUT 1
Vdrv
2
TXIN
3
GND 4
TXOUT 5
NC 6
RXIN
7
VCC
8
U1
DS 275 (8)
12 R4
10k
VCC
C5
.33uF
R5
100k
BAT
DS1615K / DS1616K
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Figure 4: EVALUATION BOARD SCHEMATIC – DS1616K
12
R1
1K
12
R2
1K
D1
GREEN D2
RED
D3
1N4001
1 2
B1
BATTERY
1 2
X1
32.768 kHz
1
6
2
7
3
8
4
9
5
J1
DB9
1 2
S1
SW-PW
BAT
X1
X2
D1
D2
TX_IN
RX_OUT
VCC
VDRV_IN
RX_IN
TX_OUT
GND
TX_IN RX_OUT
Vin
1
GND 2
Vout 3
U1
LM78L05ACZ
C1
.01uF
C3
.1uF
C2
.01uF
C4
.1uF
VCC
1
2
3
4
J2
HEADER 4
12 R3
10K
VCC
C5
22uF
1
2
3
JP1
COMSEL
TP1
TEST_POINT
RXOUT 1
Vdrv
2
TXIN
3
GND 4
TXOUT 5
NC 6
RXIN
7
VCC
8
U2
DS275 (8)
12 R4
10k
VCC
C6
.33uF
12
R5
100k
BAT
Vbat
1
X1
2
X2
3
GND
4
INSPEC
7
OUTSPEC
8
INT
11
NC
5
ST
10
RST 19
I/O 20
SCLK 21
TX 22
RX 23
COMSEL
6
Vcc 24
NC
9
GND
12 NC 13
AIN1 14
AIN2 15
AIN3 16
AGND 17
GND 18
U3
DS1616
BAT
BAT
ST
COMSEL
INT
INT
1
2
3
4
J3
HEADER 4
1 2
R7
0 1%
12 R6
0 1%
1
2
J4
HEADER 2
DS1615K / DS1616K
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Table 3: DS1615 AND DS1616 EVALUATION BOARD BOM
Designator Part Type Description
C1 .01 uF .01 uF 50V Ceramic
C2 .01 uF .01 uF 50V Ceramic
C3 .1 uF .1 uF 50V Ceramic
C4 .1 uF .1 uF 50V Ceramic
R3 10k 10k
R2 1k 1k
R1 1k 1k
D3 1N4001 1N4001 General Diode
C5 0.33 uF 0.33 uF Ceramic
C6 22 uF 22 uF Tantalum
D4 BATTERY TL-5186 Tadiran Coin Cell Battery 1
X1 CRYSTAL C-Type Watch Crystal, Seiko Epson 2
J1 DB9 DB9 90 degree PCB connector
U2 DS1615 DS1615 Temperature Recorder
U2 DS1616 DS1616 Temperature Recorder
U1 DS275 DS275 Line Powered RS-232 Transceiver
JP1 HEADER 3 3 Pin Header
J2 HEADER 4 4 Pin Header
J3 HEADER 4 4 Pin Header (DS1616K only)
J4 HEADER 2 2 Pin Header (DS1616K only)
D1 LED Low Current LED (Green)
D2 LED Low Current LED (Red)
S1 SW-PB Pushbutton Switch
U3 VOLTREG L7805 LDO Voltage Regulator3
1 For more details and contact information, see: http://www.tadiranbat.com/
2 For more details and contact information, see: http://www.eea.epson.com/products/qd/qdcrystalunit.htm
or consult Dallas Semiconductor’s Application Note 58, Crystal Considerations with Dallas Real Time Clocks which
is available on our web site. (http://www.dalsemi.com/)
3 For more details and contact information, see: http://www.two.st.com/stonline/books/index.htm
