manualshive.com logo in svg

Texas Instruments BoosterPack BOOSTXL-ADS7142-Q1, Руководство пользователя

Поделиться
Скачать
Texas Instruments BoosterPack BOOSTXL-ADS7142-Q1 Скачать руководство пользователя страница 2

SCL

SDA

ALERT

3V3

Host MCU

GND

C

BUSY/RDY

GND

GND

AIN0

AIN1

ADS7142-Q1

+

Sensor 1

GND

+

GND

Sensor 2

GND

C

R

FLT

R

FLT

Introduction

www.ti.com

2

SBAU321A – November 2018 – Revised August 2019

Submit Documentation Feedback

Copyright © 2018–2019, Texas Instruments Incorporated

BOOSTXL-ADS7142-Q1 BoosterPack™ Plug-In Module

Trademarks

BoosterPack, LaunchPad are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.

1

Introduction

The ADS7142-Q1 BoosterPack™ is a fully-assembled evaluation platform designed to highlight the
ADS7142-Q1 features and various modes of operations that makes this device suitable for ultra-low-
power, small-size sensor monitor applications.

The accompanying MSP-EXP432E401Y LaunchPad™ development kit is used as a USB-to-PC GUI
communication bridge, and example implementation of a master MCU to communicate with the ADS7142-
Q1 through its I

2

C interface.

NOTE:

The BOOSTXL-ADS7142-Q1 requires an external master controller to evaluate the

ADS7142-Q1.

The MSP-EXP432E401Y is controlled by commands received from the ADS7142-Q1 GUI, and returns
data to the GUI for display and analysis. If the MSP-EXP432E401Y is not used, the BoosterPack™ plug-in
module format of the BOOSTXL-ADS7142-Q1 board allows an alternative external host to communicate
with the ADS7142-Q1.

The BOOSTXL-ADS7142-Q1 incorporates all required circuitry and components with the following
features:

•

ADS7142-Q1 nano power, ultra-small, dual-channel sensor monitor with I

2

C interface and alert output

•

Optional low power voltage reference, TI’s REF3133-Q1, to generate a 3.3-V output to power the
ADS7142-Q1 AVDD supply pin when the 5-V USB power from the MSP432E401Y LaunchPad™

•

Optional adjustable linear regulator, TI’s TPS79933-Q1, to generate stable output voltage to power the
ADS7142-Q1 DVDD pin when using the 5-V USB power from the MSP432E401Y LaunchPad™

•

I

2

C interface for communication and configuration of modes available on the ADS7142-Q1

Figure 1

shows the ADS7142-Q1EVM architecture, identifying the key components and blocks previously

listed.

Figure 1. ADS7142-Q1 EVM Block Diagram

Содержание BoosterPack BOOSTXL-ADS7142-Q1

Страница 1: ...142 Q1 EVM Block Diagram 2 2 BOOSTXL ADS7142 Q1 Top Level Overview 3 3 Installation of browser extension and TI Clould Agent 5 4 MSP432E401Y LaunchPad 5V OTG Jumper and Debug Port Location 6 5 UNIFLASH Programming Setup 6 6 Successful FLASH Program 7 7 BOOSTXL ADS7142 Q1 Stacked on MSP432E401Y LaunchPad 8 8 ADS7142 Q1 GUI Landing Page 9 9 ADS7142 Q1 Register Map Page 10 10 ADS7142 Q1 Mode Configur...

Страница 2: ...external master controller to evaluate the ADS7142 Q1 The MSP EXP432E401Y is controlled by commands received from the ADS7142 Q1 GUI and returns data to the GUI for display and analysis If the MSP EXP432E401Y is not used the BoosterPack plug in module format of the BOOSTXL ADS7142 Q1 board allows an alternative external host to communicate with the ADS7142 Q1 The BOOSTXL ADS7142 Q1 incorporates al...

Страница 3: ...42 Q1 Figure 2 shows a BOOSTXL ADS7142 Q1 overview Figure 2 BOOSTXL ADS7142 Q1 Top Level Overview 2 1 Connectors for Single Ended Analog Input The BOOSTXL ADS7142 Q1 is designed for easy interface to an external analog single ended source through a 100 mil header Connector J5 allows analog source connectivity Table 1 lists the analog input connector and input channel configuration Table 1 Input Co...

Страница 4: ...TXL ADS7142 Q1 supports the I2 C digital interface and functional modes as detailed in the ADS7142 Q1 data sheet The MSP432E401Y LaunchPad is capable of operating at a 3 3 V logic level and is directly connected to the digital I O lines of the ADC 2 4 Power Supplies The device supports a wide range of operation on its analog supplies The AVDD can operate from 1 65 V to 3 6 V The DVDD operates from...

Страница 5: ...e following steps describe the ADS7142 Q1 GUI software installation 1 Go to the BOOSTXL ADS7142 Q1 TI website and Download the BOOSTXL ADS7142 Q1 GUI software It might require to login user account privileges to use the online version as well as installation of the applications 2 Click on the BOOSTXL ADS7142 Q1 GUI icon First time users may be prompted to download and install the browser extension...

Страница 6: ...ions with the BOOSTXL ADS7142 Q1 The following steps describe the programming of this firmware on the flash memory 1 On MSP432E401Y LaunchPad remove the jumper JP6 from its default position and place it on the JP1 jumper 5V OTG location as shown in Figure 4 2 Connect the MSP432E401Y LaunchPad debug connector to an available USB port on the PC Figure 4 MSP432E401Y LaunchPad 5V OTG Jumper and Debug ...

Страница 7: ...019 Submit Documentation Feedback Copyright 2018 2019 Texas Instruments Incorporated BOOSTXL ADS7142 Q1 BoosterPack Plug In Module 4 After programming and verification is successful as shown in Figure 6 disconnect the USB from the MSP EXP432E401Y debug port Figure 6 Successful FLASH Program ...

Страница 8: ...1 on the MSP432E401Y LaunchPad MSP EXP432E401Y Make sure the 20 pin connector J1 J3 on BOOSTXL ADS7142 Q1 is mapped against connector J5 J7 and connector J4 J2 on BOOSTXL ADS7142 Q1 is mapped against connector J8 J6 on MSP EXP432E401Y Pin 1 of BOOSTXL ADS7142 Q1 must align with pin 1 of connector J5 3V3 on MSP EXP432E401Y 2 Connect the micro USB from data port of MSP EXP432E401Y to available USB p...

Страница 9: ...level overview of the ADS7142 Q1 device The left corner shows the tabs required to navigate through the ADS7142 Q1 register map and the ADS7142 Q1 functional modes page When the MSP432E401Y with the BOOSTXL ADS7142 Q1 stacked is connected to the PC via the micro USB cable the GUI detects the BoosterPack by reading the onboard EEPROM Once detected and connected the GUI indicates this status as CONN...

Страница 10: ...le 3 3 2 REGMAP Figure 9 shows register map page for the ADS7142 Q1 On the top right corner options to read registers individually read all the registers at once or write individual register are available Users can choose to have the register values modified in the GUI to be written on the device instantaneously by selecting the Immediate option or later using the Deferred option Figure 9 ADS7142 ...

Страница 11: ...he functional mode page of the ADS7142 Q1 GUI This page enables the user to navigate and SET various functional modes of the device Autonomous and I2 C command mode and set channel specific configurations On the top right corner is an option to enable all ADC channels and enable alert functionality TI recommends enabling these blocks and then to enable or disable the preferred ADC channel based on...

Страница 12: ...ctional mode 1 Enable All Channels and Enable Alert on the top right corner of GUI page 2 Enter channel specific configurations such as high and low thresholds hysteresis and Alert functionality 3 Select Conversion Mode by clicking on either Autonomous Mode or Manual Mode 4 Select the Operating Mode from drop down menu and click SET to write register specific to that particular mode 5 Press Start ...

Страница 13: ...n registers for the desired mode 4 1 Autonomous Mode In the Autonomous Conversion Mode the device generates the start of conversion pulses using an internal oscillator on receiving the first start of conversion pulse from the host This can be configured by selecting Autonomous Mode as the Conversion Mode selecting one of the Operating Modes from the drop down menu and pressing the SET button The A...

Страница 14: ...p down menu and the SET button is pressed the device will keep on sampling input signals and storing the conversion results in the data buffer unless the user initiates the command to abort the sequence by pressing the Abort Sequence button in the GUI and stops filling the data buffer To understand the steps required to configure the device in this mode refer to the ADS7142 Q1 data sheet Figure 13...

Страница 15: ...s either the high or low threshold for the channels selected in the sequence If the user aborts the sequence before the data buffer is filled the device will abort the sequence and stop storing the conversion results To understand the steps required to configure the device in this mode refer to the ADS7142 Q1 data sheet Figure 14 shows the ADS7142 Q1 GUI configured in Pre Alert Mode with the Alert...

Страница 16: ... example Channel 0 has reached the High Threshold This is indicated by the High Threshold indicator on the right side of the corresponding graph Since the device is configured for Pre Alert Mode operation with both channels enabled the conditions prior to reaching the Alert condition are displayed The Alert condition must be cleared by clicking on the Threshold indicator before the next sequence i...

Страница 17: ... only after it reaches one of the Alert thresholds set for the channels selected in the sequence If the user aborts the sequence before the data buffer is filled the device stops storing the conversion results To understand the steps required to configure the device in this mode refer to the ADS7142 Q1 data sheet Figure 16 highlights the ADS7142 Q1 GUI working in Post Alert Mode Once either of the...

Страница 18: ...from the Operating Modes drop down menu and the SET button is pressed the device starts conversions and starts accumulating the conversion results in an accumulator The device stops accumulating the conversion results in the accumulator after 16 conversions If the user aborts the sequence before 16 conversions then the device will abort the sequence To understand the steps required to configure th...

Страница 19: ...ated by an I2 C command from the host processor and the captured data is then returned over the I2 C bus Manual Mode can work one of the following states based on power up or user initiated conditions 4 3 1 Default Mode On power up the device is in Manual Mode with single ended and dual channel configuration and it samples the analog input applied on Channel 0 AIN0 GND In this mode the device uses...

Страница 20: ...he device to scan through one channel or both channels by configuring the CHANNEL_IP_CFG register and AUTO_SEQ register The host has to provide continuous clock SCL to the device to scan through the channels and read the data from the device Figure 19 highlights the ADS7142 Q1 GUI working in Manual Mode Default State To understand the steps required to configure the device in Manual Mode refer to ...

Страница 21: ...ring R26 Assemble Do Not Populate R29 R34 RT1 C12 Do Not Populate Assemble 4 5 Input Signal Conditioning Block on the BOOSTXL ADS7142 Q1 For applications where the input signal requires additional conditioning before being interfaced to the ADC the BOOSTXL ADS7142 Q1 has an optional signal conditioning path that can be populated between the input signal and the ADS7142 Q1 The board has a provision...

Страница 22: ... 5 0 1 W 0603 RC0603JR 070RL Yageo R4 1 RES 10 0 0 1 0 063 W 0402 CPF0402B10RE1 TE Connectivity R13 R17 R18 R22 R23 R24 R25 7 RES 1 0 k 5 0 1 W 0603 RC0603JR 071KL Yageo R15 R21 2 RES 10 k 5 0 1 W 0603 RC0603JR 0710KL Yageo U1 1 Nanopower Dual Channel Programmable Sensor Monitor DMG0010A WSON 10 ADS7142QDQCRQ1 Texas Instruments U6 1 I2 C BUS EEPROM 2 Wire TSSOP B8 BR24G32FVT 3AGE2 Rohm C1 C2 0 CAP...

Страница 23: ...C 10k ohm 5 0402 NCP15XH103J03RC Murata U2 0 Automotive 20 ppm degC Max 100 uA SOT23 3 Series Voltage Reference DBZ0003A SOT 23 3 REF3133AQDBZTQ1 Texas Instruments U3 0 Single Output High PSRR LDO 200 mA Fixed 3 3 V Output 2 7 to 6 5 V Input with Low IQ 5 pin SOT DDC 40 to 125 degC Green RoHS no Sb Br TPS79933QDDCRQ1 Texas Instruments U4 0 Dual Channel 425nA Precision Nanopower Operational Amplifi...

Страница 24: ... November 2018 Revised August 2019 Submit Documentation Feedback Copyright 2018 2019 Texas Instruments Incorporated BOOSTXL ADS7142 Q1 BoosterPack Plug In Module 5 2 PCB Layout Figure 20 Figure 21 and Figure 22 illustrate the EVM PCB layout Figure 20 BOOSTXL_ADS7142 Q1 PCB Top Overlay ...

Страница 25: ...ayout and Schematics 25 SBAU321A November 2018 Revised August 2019 Submit Documentation Feedback Copyright 2018 2019 Texas Instruments Incorporated BOOSTXL ADS7142 Q1 BoosterPack Plug In Module Figure 21 BOOSTXL ADS7142 Q1 Top Layer Copper and Silkscreen ...

Страница 26: ...ematics www ti com 26 SBAU321A November 2018 Revised August 2019 Submit Documentation Feedback Copyright 2018 2019 Texas Instruments Incorporated BOOSTXL ADS7142 Q1 BoosterPack Plug In Module Figure 22 BOOSTXL ADS7142 Q1 Bottom Layer Copper and Silkscreen ...

Страница 27: ...1A November 2018 Revised August 2019 Submit Documentation Feedback Copyright 2018 2019 Texas Instruments Incorporated BOOSTXL ADS7142 Q1 BoosterPack Plug In Module 5 3 Schematics Figure 23 shows the ADS7142 Q1 BoosterPack schematics Figure 23 ADS7142 Q1 BoosterPack Schematic Diagram ...

Страница 28: ...vision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original November 2018 to A Revision Page Changed Section 3 5 Deleted Driver Installation Steps for Analog EVM Controller for Windows Platform section 8 Changed C6 C7 manufacturer part number in Bill of Materials table 22 ...

Страница 29: ...se resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for...

Отзывы:

Нет отзывов

Бренды по названию

Популярные бренды

Загрузить еще бренды