Texas Instruments TMP110 Manuale utente

EVM User's Guide: TMP110EVM

TMP110 Evaluation Module

Description

The TMP110 is TI's first X2SON packaged digital

temperature sensor with I2C communication and

alert/address options. The TMP110EVM allows users

to evaluate the performance of the TMP110 digital

temperature sensor. The TMP110EVM is designed

to be used as is; using the evaluation module GUI.

Alternatively, the sensor can be detached to be

evaluated in the user's system. For this purpose,

there are multiple alternatives to interface with the

sensor for best user experience.

Get Started

1. Order the TMP110EVM

2. Detach the sensor breakable PCB section

(optional)

3. Connect the EVM to computer or user system

4. Go to the TMP110EVM gallery page on dev.ti.com

to either download the GUI or run on the web

5. Refer to the TMP110 data sheet for IC details

6. Visit our E2E forums for support or questions

Features

• Easy to use cloud-based GUI is available on the

web or can be downloaded for offline use

• Showcasing the ultra-small, leadless X2SON

package digital temperature sensor with alert

functionality

• Breakable sensor board with 0.1'' pitch header

footprint and 4-pin JST connector footprint to

interface with the TMP110

• Data logging with GUI

Applications

•Building automation

–Occupancy detection

–Video doorbell

–HVAC: Wireless environmental sensor

•Factory automation & control

–Machine vision camera

–Industrial PC: Single board computer

–CPU (PLC controller)

• Cold chain

•Data center & enterprise computing

–Solid State Drive (SSD)

–Rack Server Motherboard

•Personal electronics

–PC & notebooks, tablets

–Digital still & video camera

–Augmented reality glasses

–Smart speakers

TMP110EVM

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TMP110 Evaluation Module 1

1 Evaluation Module Overview

1.1 Introduction

The EVM comes in a USB stick form factor, with an onboard MSP430F5528 microcontroller that interfaces with

both the host computer and the TMP110 device using an I2C interface. The module is designed with perforations

between the sensor and host controller on the EVM board. The perforation allows the user flexibility in their

evaluation:

• The user can connect the TMP110 breakable section to the user's system/host.

• The user can connect the EVM host and software to the user's system with TMP110 devices.

• Small individual boards allow the user to place sensors in the user's system or in a temperature-controlled

environment to evaluate performance.

• Hole spacing is compatible with common 0.1" prototyping breadboards.

• Surface mount connector footprint is compatible with 4-pin JST I2C systems.

This user's guide describes the characteristics, operation, and use of the TMP110EVM evaluation board by

explaining how to set up and configure the software, describing the hardware, and reviewing various aspects

of the software operation. Throughout this document, the terms evaluation board, evaluation module, and EVM

are synonymous with the TMP110EVM. This user's guide also provides information on the operating procedure,

input and output connections, an electrical schematic, printed-circuit board (PCB) layout drawings, and a parts

list for the EVM.

1.2 Kit Contents

Table 1-1 details the contents of the EVM kit. Contact the Texas Instruments Product Information Center nearest

you if any components are missing. TI highly recommends that users check the TI website at http://www.ti.com

to verify that the latest versions of the related software is downloaded.

Table 1-1. EVM Kit Contents

Item Quantity

TMP110EVM 1

1.3 Specification

Table 1-2 defines the absolute maximum thermal conditions of each section of the EVM. The main 2 sections

are the controller section and the sensor breakable section. These limits must be considered when evaluating

the performance of the device at extreme temperatures. In this case, if the setup conditions exceed the controller

absolute maximum thermal specifications, then the sensor breakable section must be detached so that only the

sensor (and not the MCU) is evaluated at these temperatures.

Table 1-2. Thermal Specifications

BOARD SECTION CONDITIONS TEMPERATURE RANGE

Controller board

Recommended operating free-air

temperature, TA

-40°C to 85°C

Absolute maximum junction temperature, TJ95°C

TMP110 breakable board Recommended operating free-air

temperature, TA

-55°C to 150°C

1.4 Device Information

The TMP110 is a digital output temperature sensor that is calibrated in production to achieve high accuracy

in a small X2SON package. This device communicates in a two-wire environment compatible with SMBus and

I2C interfaces. The device can be set to make continuous or one-shot conversions and can be ordered with

an address or an alert pad as needed. This EVM showcases one of the alert devices with the default address

of 0x48. For more information of the IC, please refer to the device data sheet. Table 1-3 includes some of the

parameters of interest of the TMP110 to consider when using this EVM.

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Table 1-3. Device Specifications

DEVICE SPECIFICATION VALUE

Operating temperature range -55°C to 150°C

Temperature accuracy (-40°C to 125°C) ± 1°C

Temperature accuracy (-55°C to 150°C) ± 2°C

Operating supply range 1.4 V to 5.5 V

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TMP110 Evaluation Module 3

2 Hardware

2.1 Overview

The EVM is divided into 2 sections: the controller section and the breakable sensor section. The breakable

sensor section can be detached to use the sensor in the following scenarios:

• Using the controller section with the sensor section connected by soldered wires/connectors to evaluate the

sensor far from the controller and PC at extreme temperatures or other conditions.

• Using the sensor section with the user's system by interfacing through I2C with the TMP110.

• Using the controller section with TMP110 sensors in the user's system.

Figure 2-1 highlights the EVM sections as well as some components that must be identified by the user to

understand the purpose and use. The components are further explained in detail in the sections below.

BSL Bu



on MCU

Subregulator

Switch Breakout Sensor Sec



TMP110 Sensor

Programming Header

Perfora



Alert LED

Figure 2-1. TMP110EVM Board Sections

2.2 Perforations & Connectability

The perforation between the USB controller and TMP110 sensor is labeled on both sides for pin connections.

Once the sensor section is detached from the controller section, the user can interface with the sensor section in

2 different ways:

•Soldering wires or 0.1'' header connectors: With this approach, the user has access to all pins of the

device.

•Installing a surface mount 4-pin JST connector: The breakable sensor section has the footprint of this

connector so that the user can interface with controller boards that connect to I2C devices with JST cabling.

With this method, the user only has access to the communication lines (SDA and SCL), supply, and ground.

Note that pullup resistors and protection diodes are on the controller section. Thus, when interfacing with other

controller boards, TI recommends to verify that pullup resistors and protection circuitry are present on any

controller board for safe and proper functionality.

Table 2-1 shows the pinout of the 4-pin connector footprint as reference.

Table 2-1. Connector Pinout

TMP110 PIN CONNECTOR PIN

GND 1

Vdd 2

SDA 3

SCL 4

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2.3 Status LEDs & Subregulator

The switch S1 enables and disables the on-board 3.3-V regulator: U5. When the subregulator is enabled, the

green LED D3 illuminates. The subregulator must be enabled for normal operation of TMP110EVM as the

subregulator supplies power to the device and pullup voltage of the communication lines.

The red LED D4 is the MSP430F5528 status LED. Table 2-2 shows how the different modes of operation are

displayed by the LED status.

Table 2-2. Status LED Mode of Operation

D4 LED STATUS MSP430F5528 MODE OF OPERATION

Off EVM is connected to EVM GUI

Blinking in bursts of 4 blinks EVM is plugged into PC, not connected to EVM GUI

Steady blinking Connected to USB power

2.4 Programming Header

The TMP110EVM comes pre-loaded with firmware that is necessary for the correct operation of the USB

interface and PC GUI software. The unpopulated header, J2, is provided for Spy-Bi-Wire access to the

MSP430F5528. TI does not recommend that users access this header or reprogram the device.

2.5 BSL Button

The TMP110EVM features push-button SW1 for entering USB BSL mode. This can be used for firmware

updates. To enter USB BSL mode, connect the EVM to a PC USB port while holding down SW1.

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TMP110 Evaluation Module 5

3 Software

3.1 Software Download

The PC GUI Software for TMP110EVM runs on TI's GUI Composer framework. The software is available as

a live version which runs in your browser, and is available as a download for offline use. The software is

compatible with Windows®, Mac®, and Linux® operating systems.

3.1.1 Live Software on dev.ti.com

The live software currently works on Chrome, Firefox, and Safari browsers. Internet Explorer is not supported.

Users can access the live version through one of the following actions:

• Go to the EVM tool page and click on the View button

• Go to https://dev.ti.com/gallery/info/THSApps/tmp110evm

Click on the application icon within the gallery to launch the software. Click on the prompt to install the TI Cloud

Agent Bridge browser plugin.

3.1.2 Offline Software

3.1.2.1 Download from dev.ti.com

Users can access the latest version of the offline software by navigating to the live version as noted above. Look

for the download icon and download both the application and runtime for the operating system as shown in

the Gallery Download.

Figure 3-1. Download Pop-Up

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3.2 Home Tab

The Home Tab is shown at software launch. From here, you can access the Information, Data, Registers and

Collateral tabs which are explained below. The icons on the left side of the screen are shortcuts to the tabs.

Figure 3-2. Home

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TMP110 Evaluation Module 7

3.3 Information Tab

The Information tab shows device details and features of the TMP110 and EVM details. The device information

such as the block diagram, functional modes, and specifications of the sensor is found under the Device

Information & Features tab. EVM details such as the schematic and legend are also shown under the EVM

Details tab.

Figure 3-3. Information

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3.4 Data Tab

The Data Capture tab reports the temperature from the TMP110 device included on the TMP110EVM. By

default, once the EVM is connected and the GUI is loaded and running properly, the device starts converting and

MCU starts reading the conversions which are automatically reported and displayed in the Data tab graph.

On the right side of this tab, the user can also see the latest temperature read. There is also a chart controls box

which allows the user to:

• Write to the polling rate bits. By default, once a value is selected from the dropdown, the microcontroller

automatically writes to the TMP110.

• Start and stop polling the data read to export to CSV format for temperature monitoring. The user must start

polling by clicking the Start button and the data (CSV) automatically exports once the stop button is clicked.

The Alert Config box allows the user to easily configure the alert functionality settings of the TMP110 such as

polarity, mode, and limits. The limits can be written on the left box in decimal format and automatically displays

in hexadecimal on the right box for reference. By default, all of these settings are written automatically (once

selected) to the TMP110 by the MCU.

Figure 3-4. Data Capture

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TMP110 Evaluation Module 9

3.5 Registers Tab

The Registers tab interacts with the registers and bits within the TMP110 device. For more information on each

The Auto Read drop-down box configures polling of register contents. By default, the MCU polls the registers

with a 100 ms delay. When Auto Read is Off, click Read Register to fetch the contents of the current register.

Read All Registers can be used to fetch the contents of all registers at once.

By default, the Write Register button is grayed and disabled when the button is set to Immediate. Immediate

mode triggers a Write operation each time a register is modified. When Deferred mode is selected, the Write

These settings give the user total control over I2C Bus activity, and enable individual transactions to be easily

observed with an oscilloscope, logic analyzer, or bus-sniffing device.

Figure 3-5. Registers

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