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TMP103EVM
User Manual
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Texas Instruments TMP103EVM User Manual

TMP103EVM
1 Overview ..................................................................................................................... 2
2 System Setup ................................................................................................................ 3
3 Theory of Operation ......................................................................................................... 4
4 TMP103EVM Hardware Overview......................................................................................... 5
5 TMP103EVM Software Setup.............................................................................................. 8
6 TMP103EVM Software Overview ....................................................................................... 12
7 TMP103EVM Documentation............................................................................................. 18
8 Bill of Materials ............................................................................................................. 20
User's Guide
SBOU099A–January 2011–Revised April 2018
Contents
List of Figures
1 Typical Hardware Included With the TMP103EVM Kit.................................................................. 2
2 TMP103EVM Hardware Setup............................................................................................. 3
3 TMP103 Test Board Block Diagram....................................................................................... 4
4 SM-USB-DIG Platform Block Diagram.................................................................................... 5
5 Connecting the USB Cable to the SM-USB-DIG Platform ............................................................. 6
6 SM-USB-DIG Platform Driver Installation Confirmation ................................................................ 6
7 10-Pin Ribbon Cable Extender............................................................................................. 7
8 TMP103EVM Welcome Window........................................................................................... 8
9 TMP103EVM License Agreements........................................................................................ 9
10 NI License Agreements.................................................................................................... 10
11 TMP103EVM Installation Directory ...................................................................................... 10
12 Select Components Installation .......................................................................................... 11
13 TMP103EVM Software About Button.................................................................................... 11
14 TMP103EVM Software Interface: Proper Operation................................................................... 12
15 Communication Error With USB DIG Platform......................................................................... 12
16 TMP103EVM Software: Reading from Registers ...................................................................... 13
17 TMP103EVM Software: Writing to Registers ........................................................................... 14
18 Conversion Time Selection Dialog....................................................................................... 14
19 Max Temp Flag Trigger ................................................................................................... 15
20 TMP103EVM Software: Register Tab ................................................................................... 16
21 TMP103EVM Software: Test Procedure ................................................................................ 17
22 TMP103EVM Schematic .................................................................................................. 18
23 TMP103EVM Component Layout ........................................................................................ 19
SBOU099A–January 2011–Revised April 2018
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TMP103EVM
1
Overview
Trademarks
Microsoft, Windows are registered trademarks of Microsoft Corporation. I2C is a trademark of NXP Semiconductors. All other trademarks are the property of their respective owners.
1 Overview
The TMP103 is a digital output temperature sensor capable of reading temperatures to 1°C resolution. The TMP103 uses a two-wire I2C™ and SMBus interface that supports global commands. These global commands allow the user to communicate with up to eight TMP103 devices on the bus without having to send individual addresses. The TMP103 is ideal for environments with constrained space or power­sensitive applications. The TMP103 is also specified to operate between –40°C and +125°C.
1.1 TMP103EVM Kit Contents
Figure 1 illustrates the typical hardware included the TMP103EVM. Table 1 details the contents of the
TMP103EVM kit, Contact the Texas Instruments Product Information Center (PIC) nearest you if any component is missing. TI highly recommends that you check the TI web site at http://www.ti.com to verify that you have the latest versions of the related software.
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Figure 1. Typical Hardware Included With the TMP103EVM Kit
TMP103 PCB Test Board 1
SM-USB-DIG Platform PCB 1
USB Cable Extender 1
10-pin Connector Ribbon Cable
2
TMP103EVM
Table 1. TMP103EVM Kit Contents
Item Quantity
Extender
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1
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Desktop or Lab Computer/
Laptop
SM-USB-DIG Platform
TMP103EVM
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1.2 If You Need Assistance
If you have questions about the TMP103EVM, contact the Temperature Sensing Applications Team by posting on E2E forum here: https://e2e.ti.com/support/sensor/temperature_sensors/.
1.3 Related Documentation
The following documents provide information regarding Texas Instruments integrated circuits used in the assembly of the TMP103EVM. This user's guide is available from the TI web site under literature number SBOU099. Any letter appended to the literature number corresponds to the document revision that is current at the time of the writing of this document. Newer revisions may be available from the TI web site at http://www.ti.com, or call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product Information Center at (972) 644-5580. When ordering, identify the document by both title and literature number.
TMP103 Product Data Sheet SBOS545
SM-USB-DIG Platform User’s
1.4 FCC Warning
This equipment is intended for use in a laboratory test environment only. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments may cause interference with radio communications, in which case the user is required to take whatever measures may be required to correct this interference at their own expense.
Table 2. Related Documentation
Document Literature Number
Guide
SBOU098
Overview
2 System Setup
The TMP103EVM hardware consists of the SM-USB-DIG Platform and the TMP103EVM; these units are easily connected through a 10-pin, board-to-board connector that should be attached to the SM-USB-DIG and TMP103EVM PCBs. Once these two boards are connected, simply plug the USB device from the SM­DIG into the computer as shown in Figure 2.
Figure 2. TMP103EVM Hardware Setup
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TMP103EVM
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TMP A TMP B TMP C
TMP D
TMP E
TMP FTMP GTMP H
I C Interface
and V
2
DUT
10-Pin Connector
Socket
Test Point
Headers
U1 TP1-4
Theory of Operation
3 Theory of Operation
The TMP103EVM is very modest in its design, and only requires the two-wire I2C lines (SDA and SCLK) and V has several test points to monitor these signal lines, and ground, in case users may want to use their own signals or verify I2C communications.
/GND to supply a constant 3.3 V and power return, as shown in Figure 3. The TMP103EVM also
DUT
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Figure 3. TMP103 Test Board Block Diagram
3.1 Signal Definitions of H1 (10-Pin Male Connector Socket)
Table 3 shows the pinout for the 10-pin connector socket used to communicate between the TMP103EVM
and the SM-USB-DIG. It should be noted that the TMP103EVM only uses the necessary I2C communication lines (Pins 1 and 3) and the V TMP103 sensors.
Table 3. Pin Connector
Pin on U1 Signal Description
1 I2C_SCL I2C clock signal (SCL) 2 CTRL/MEAS4 3 I2C_SDA1 I2C data signal (SDA) 4 CTRL/MEAS5 5 SPI_DOUT1 SPI data output (MOSI)
6 V
7 SPI_CLK SPI clock signal (SCLK)
(1)
When V
8 GND Power return (GND) 9 SPI_CS1 SPI chip select Signal (CS)
10 SPI_DIN1 SPI data input (MISO)
is Hi-Z, all digital I/Os are Hi-Z as well.
DUT
and GND (Pins 6 and 8) pins to issue commands to the
DUT
DUT
GPIO: Control output or measure
input
GPIO: Control output or measure
input
Switchable DUT power supply:
+3.3 V, +5 V, Hi-Z
(disconnected).
(1)
4
TMP103EVM
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TUSB3210
8052 Cm
with USB Interface
and UART
8Kx8-byte EEPROM
+3.3V
V
USB
+5V
Power-On Reset
SM USB DIG Platform
To Test Board
To Computer and Power Supplies
Power
Switching
Switched Power
USB Bus
from
Computer
USB Power
+5.0V
+3.0V
V
(Hi-Z, 3.3V, or 5V)
DUT
Buffers and
Level Translators
I C/SPI Control and Measure Bits
2
+3.3V
Regulator
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3.2 Theory of Operation for the SM-USB-DIG Platform
Figure 4 shows the block diagram for the SM-USB-DIG Platform. This platform is a general-purpose data
acquisition system that is used on several different Texas Instruments' evaluation modules. The details of its operation are included in a separate document, the SM-USB-DIG Platform User's Guide (SBOU098), available for download at www.ti.com). The block diagram in Figure 4 is presented as a brief overview of the Platform.
The core of the SM-USB-DIG Platform is the TUSB3210, an 8052 microcontroller (μC) that has a built-in USB interface. The microcontroller receives information from the host computer that it translates into I2C, SPI, or other digital I/O patterns. During the digital I/O transaction, the microcontroller reads the response of any device connected to the I/O interface. The response from the device is then sent back to the PC where it is interpreted by the host computer.
Theory of Operation
Figure 4. SM-USB-DIG Platform Block Diagram
4 TMP103EVM Hardware Overview
4.1 Electrostatic Discharge Warning
Many of the components on the TMP103EVM are susceptible to damage by
4.2 Connecting the Hardware
handling precautions when unpacking and handling the EVM, including the use of a grounded wrist strap at an approved ESD workstation.
To connect the TMP103 Test Board and the SM-USB-DIG Platform together, gently slide the male and female ends of the 10-pin connectors together. Make sure that the two connectors are completely pushed together; loose connections may cause intermittent operation.
electrostatic discharge (ESD). Customers are advised to observe proper ESD
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CAUTION
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TMP103EVM
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TMP103EVM Hardware Overview
4.3 Connecting the USB Cable to the SM-USB-DIG Platform
Figure 5 depicts the USB cable connected to the SM-USB-DIG Platform. Be careful when inserting the
connectors.
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Figure 5. Connecting the USB Cable to the SM-USB-DIG Platform
Figure 6 shows the typical system response when the SM-USB-DIG Platform board connects to a PC
USB port for the first time. Typically, the computer will respond with a Found New Hardware, USB Device pop-up dialog. The pop-up window then generally changes to Found New Hardware, USB Human Interface Device. This pop-up screen indicates that the device is ready to be used. The SM-USB-DIG Platform uses the human interface device drivers that are part of the Microsoft®Windows®operating system.
Figure 6. SM-USB-DIG Platform Driver Installation Confirmation
6
TMP103EVM
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4.4 TMP103EVM Features
This section describes some of the hardware features present on the TMP103 test board.
4.4.1 Populating 0-Ω Resistors
The TMP103 test board contains 0-Ω resistors (R1 to R16) that connect the individual TMP103 sensors to the I2C bus lines. When these resistors are populated, they become available for communication in general calls. If the 0-Ω resistors are not populated for certain TMP103 devices on the board, they are not able to communicate with the software or receive any external I2C commands. Leaving the resistors unpopulated could be useful if one of the TMP103 units becomes damaged or fewer than eight TMP103s are populated.
4.4.2 Multiple TMP103 Sensors
The TMP103EVM board was designed to take advantage of the I2C general call described in the TMP103 product data sheet. This feature allows the software to communicate with all the TMP103s simultaneously without requiring individual commands with separate pointer addresses to the sensors. The maximum number of sensors on the TMP103 test board is eight; all devices have separate hardware address, so a board of eight populated TMP103 devices requires eight different part types. For assignment of the pointer addresses and a more detailed description, consult the TMP103 Low-Power, Digital Temperature Sensor
With Two-Wire Interface in WCSP data sheet (SBOS545).
4.4.3 I2C Test Points
I2C test points are included on the TMP103 test board for user convenience. These test points can be used to monitor the two-wire lines of the I2C interface or to run the TMP103 test board externally without the use of the SM-USB-DIG.
TMP103EVM Hardware Overview
4.4.4 Optional 10-Pin Connector Ribbon Extender
The TMP103EVM kit ships with an optional ribbon cable to extend the connection between the SM-USB­DIG and the TMP103EVM PCB. This cable can be useful if high temperature tests must be run on the test board, because the SM-USB-DIG platform is not rated for high temperatures. To connect the ribbon cable, attach the cable to the EVM and SM-USB-DIG Platform board as shown in Figure 7.
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Figure 7. 10-Pin Ribbon Cable Extender
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TMP103EVM
7
TMP103EVM Software Setup
5 TMP103EVM Software Setup
This section discusses how to install the TMP103EVM software.
5.1 Operating Systems Compatibility
The TMP103EVM software has been tested on the Microsoft Windows 7. The software should also function on other Windows operating systems such as Windows 10.
5.2 TMP103EVM Software Installation
The EVM software is tested on the Microsoft Windows 7 and 10 operating system (OS). The software also functions on other Windows operating systems. The EVM software is available through the EVM product folder on the TI website. To download the software to your system, simply follows the instructions below.
1. Go to the TMP103EVM web page on the TI website: http://www.ti.com/tool/TMP103EVM. Scroll down to the Software section and download the latest evaluation software.
2. Unzip the downloaded file into a known directory. Once the files are extracted, navigate and run the Setup_TMP103EVM_GUI.exe file located in [Unzip location]. The EVM software installer then begins the installation process as shown in Figure 8.
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TMP103EVM
Figure 8. TMP103EVM Welcome Window
SBOU099A–January 2011–Revised April 2018
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3. Follow the on-screen instructions by clicking the Next button to install the software. Following this
TMP103EVM Software Setup
option, two license agreements are presented as shown in Figure 9 and Figure 10 that must be accepted. After accepting both the Texas Instruments and National Instruments license agreements, the user is given the choice of selecting the directory to install the program; usually, TI recommends choosing the default setting stored in the C:\Program Files\TMP103EVM path as shown in Figure 11.
Figure 9. TMP103EVM License Agreements
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