Texas Instruments TLC2543 Manuale utente

SNAU232–July 2018

BOOSTXL-TLC2543 EVM User Guide

User's Guide

SNAU232–July 2018

BOOSTXL-TLC2543 EVM User Guide

The TLC2543-Q1 BoosterPack™ Plug-in Module (BOOSTXL-TLC2543) allows users to evaluate the

functionality of Texas Instruments' TLC2543-Q1 SAR ADC. The TLC2543-Q1 is a 12-bit, 11-channel,

automotive qualified SAR ADC. This user’s guide describes both the hardware platform with an TLC2543-

Q1 device and the graphical user interface (GUI) software used to configure the various modes of

operation of this device.

Contents

1 Introduction ................................................................................................................... 2

2 BOOSTXL-TLC2543 EVM Overview...................................................................................... 3

3 BOOSTXL-TLC2543 EVM Setup.......................................................................................... 5

4 BOOSTXL-TLC2543 EVM GUI Operation .............................................................................. 13

5 Bill of Materials, Printed-Circuit Board Layout, and Schematics..................................................... 17

List of Figures

1 BOOSTXL-TLC2543 EVM Block Diagram ............................................................................... 2

2 BOOSTXL-TLC2543EVM Top Level Overview.......................................................................... 3

3 BOOSTXL-TLC2543 EVM GUI Installation .............................................................................. 5

4 BOOSTXL-TLC2543 EVM Driver Installation ............................................................................ 6

5 TM4C1294 LaunchPad™ Development Kit Stellaris Virtual Serial Port and ICDI Driver .......................... 7

6 TM4C1294 LaunchPad™ Development Kit Software Programming Setup.......................................... 8

7 TM4C1294 LaunchPad™ Development Kit Selection in Configuration Tab......................................... 9

8 TM4C1294 LaunchPad™ Development Kit Programming Using LM Flash Programmer........................ 10

9 TMC1294 LaunchPad™ Development Kit VIA BoosterPack™ Plug-in Module Driver ........................... 11

10 BOOSTXL-TLC2543 EVM stacked on TM4C1294 LaunchPad™ Development Kit .............................. 12

11 BOOSTXL-TLC2543 GUI Landing Page................................................................................ 13

12 AIN0 (Channel0) Voltage.................................................................................................. 14

13 Frequency Domain Analysis Page....................................................................................... 15

14 BOOSTXL-TLC2543 Top Layer Routing................................................................................ 18

15 BOOSTXL-TLC2543 Ground Layer...................................................................................... 19

16 BOOSTXL-TLC2543 Power Layer....................................................................................... 20

17 BOOSTXL-TLC2543 Bottom Layer Routing............................................................................ 21

18 BOOSTXL-TLC2543 EVM Schematic Diagram........................................................................ 22

List of Tables

1 Input Connector and Channel Configuration............................................................................. 3

2 Bill of Materials ............................................................................................................. 17

Trademarks

BoosterPack, LaunchPad are trademarks of Texas Instruments.

All other trademarks are the property of their respective owners.

Launchpad

Connectors

TLC2543

(U8)

Input

Connector

(J10)

5.5V

11 Inputs

(AIN0 tAIN10)

OPA2320-Q1 (U7)

SPI

REG71055-Q1

(U1)

TPS79901-Q1

(U2)

I2C

BR24G32FVT

-3AGE2

(EEPROM U4)

VCC

SMA

(J8)

SMA

(J13)

Two channels with

optional SMA input

REF5040A-Q1 (U9)

4.5V Reference

VREF

4.5V

AIN0 AIN1

EOC

Introduction

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BOOSTXL-TLC2543 EVM User Guide

1 Introduction

The BOOSTXL-TLC2543 is a fully-assembled evaluation platform designed to highlight the TLC2543-Q1

device features and its various modes of operations.

The BOOSTXL-TLC2543 EVM interfaces to the TM4C1294 LaunchPad™ Development Kit (EK-

TM4C1294XL). The Tiva C Series TM4C1294 MCU on the TM4C1294 LaunchPad Development Kit

communicates with the TLC2543-Q1 through its SPI interface and acts as a USB-to-PC GUI

communication bridge.

NOTE: The BOOSTXL-TLC2543 requires an external master controller to evaluate the TLC2543-

Q1.

The TM4C1294 LaunchPad Development Kit is controlled by commands received from the BOOSTXL-

TLC2543 EVM GUI, and the kit returns the data to the GUI for display and analysis. If the TM4C1294

LaunchPad Development Kit is not used, the BoosterPack™ Plug-in Module format of the BOOSTXL-

TLC2543 board allows an alternative external host to communicate with the TLC2543-Q1.

The BOOSTXL-TLC2543 EVM incorporates all required circuitry and components with the following

features:

• The TLC2543-Q1 12-bit, 11-channel, automotive qualified SAR ADC with SPI interface

• The REF5045A optional low power voltage reference to generate a 4.5-V reference for the TLC2543-

Q1 VREF pin when using 5.0 V from TM4C1294 LaunchPad Development Kit

• The OPA2320 optional precision, low noise, dual operational amplifier to generate buffered input for

the TLC2543-Q1 AIN0 and AIN1 pins

• The TPS79901 optional adjustable linear regulator to generate stable 5V output voltage to power the

TLC2543-Q1 VCC pin when using the USB power from the TM4C1294 LaunchPad Development Kit

• SPI interface for communication and configuration of modes available on the TLC2543-Q1

Figure 1 shows the BOOSTXL-TLC2543 EVM architecture along with the key components and blocks

listed in the features.

Figure 1. BOOSTXL-TLC2543 EVM Block Diagram

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BOOSTXL-TLC2543 EVM Overview

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BOOSTXL-TLC2543 EVM User Guide

2 BOOSTXL-TLC2543 EVM Overview

Section 2 lists various onboard components that are used to interface analog input, digital interface, and

provide power supply to BOOSTXL-TLC2543 EVM. Figure 2 shows a BOOSTXL-TLC2543 EVM overview.

Figure 2. BOOSTXL-TLC2543EVM Top Level Overview

2.1 Connectors for Analog Input

The BOOSTXL-TLC2543 EVM is designed for easy interface-to-analog sources through a 100-mil header.

Connector J10 allows analog source connectivity. Table 1 lists the analog input connector and input

channel configuration.

Table 1. Input Connector and Channel Configuration

J10 Connector Pin Description

J10:1 Analog input for channel 0 of ADC

J10:2 Analog input for channel 1 of ADC

J10:3 Analog input for channel 2 of ADC

J10:4 Analog input for channel 3 of ADC

J10:5 and J10:6 BoosterPack™ Plug-in Module ground

J10:7 Analog input for channel 4 of ADC

J10:8 Analog input for channel 5 of ADC

J10:9 Analog input for channel 6 of ADC

J10:10 Analog input for channel 7 of ADC

J10:11 Analog input for channel 8 of ADC

BOOSTXL-TLC2543 EVM Overview

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Table 1. Input Connector and Channel Configuration (continued)

J10 Connector Pin Description

J10:12 Analog input for channel 9 of ADC

J10:13 Analog input for channel 10 of ADC

J10:15 and J10:16 BoosterPack™ Plug-in Module ground

J10:14, 17, 18, 19, 20 No Connection

The analog input range is from GND to +VREF. A maximum of 11 single-ended inputs may be applied to

J10 using pins J10:1 to J10:4 and J10:7 to J10:13.

The user can configure the input to channel 0 to use the OPA2320 buffer through a 100-Ωresistor with an

1000-pF capacitor to GND. Jumper J7 can be placed on pins 1-2 to select this unity gain buffer

configuration of the OPA2320. In this case, the channel 0 input is provided through the SMA connector J8.

The user can also place Jumper J12 on pins 1-2 to create a similar configuration for a channel 1 input

provided through the SMA connector J13.

2.2 Voltage Reference

The BOOSTXL-TLC2543 EVM has two sources for the reference voltage. Jumper J11 can select the

VREF voltage from either the REF5045A (U9) or from 5-V VCC. The EVM is factory-configured for use

with the REF5045A 4.5-V reference (J11 pins 2-3).

2.3 Digital Interface

As noted in Section 1, the BOOSTXL-TLC2543 EVM interfaces with the TM4C1294 LaunchPad

Development Kit, which in turn communicates with the computer over USB. The two devices on the

booster pack that the TM4C1294 communicates with are the TLC2543-Q1 ADC (over SPI) and the

EEPROM (over I2C). The EEPROM comes preprogrammed with the information required to configure and

initialize the BOOSTXL- TLC2543 EVM platform every time on power up.

2.4 BOOSTXL-TLC2543 Digital I/O Interface

The BOOSTXL-TLC2543 EVM supports the SPI digital interface and functional modes as detailed in the

TLC2543-Q1 data sheet. The TM4C1294 LaunchPad Development Kit is operating at a 3.3-V logic level

and is connected to the 5-V digital I/O lines of the ADC through level shifters (SN74LVC1T45QDCURQ1

and SN74LVC2T45QDCURQ1).

2.5 Power Supply

The device supports a single power supply with a wide range of operation. The VCC can operate from 2.7

V to 5 V. The available onboard TPS79901 adjustable voltage regulator is configured to supply 5 V to the

TLC2543-Q1 VCC pin on the BOOSTXL-TLC2543 EVM.

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BOOSTXL-TLC2543 EVM Setup

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BOOSTXL-TLC2543 EVM User Guide

3 BOOSTXL-TLC2543 EVM Setup

3.1 BOOSTXL-TLC2543 EVM Graphical User Interface Software Installation

The following steps describe the BOOSTXL-TLC2543 EVM GUI software installation:

1. Download the latest version of the EVM graphical user interface (GUI) installer from the Tools and

Software folder of the device, and run the GUI installer to install the EVM GUI software on your

windows PC.

2. Accept the License Agreements and follow the on-screen instructions to complete the installation (see

Figure 3).

Figure 3. BOOSTXL-TLC2543 EVM GUI Installation

BOOSTXL-TLC2543 EVM Setup

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3. Click the Next button when the Device Driver Installation Wizard prompt appears on the screen to start

the installation process (see Figure 4). Click the Finish button when the install is complete.

Figure 4. BOOSTXL-TLC2543 EVM Driver Installation

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BOOSTXL-TLC2543 EVM Setup

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BOOSTXL-TLC2543 EVM User Guide

4. Open the computer's "Device Manager". You must be able to see the "Stellaris Virtual Serial Port" and

"Stellaris In-Circuit Debug Interface" as shown in Figure 5.

Figure 5. TM4C1294 LaunchPad™ Development Kit Stellaris Virtual Serial Port and ICDI Driver

BOOSTXL-TLC2543 EVM Setup

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3.2 LM Flash Programmer for TM4C1294 LaunchPad™ Development Kit Software

Programming

The TM4C1294 LaunchPad Development Kit ships with a default firmware program flashed on its

memory. When a TM4C1294 LaunchPad Development Kit is connected to the PC for the first time, its

firmware needs to be updated for communications with the BOOSTXL-TLC2543 EVM. The following steps

describe the programming of this firmware on the flash memory:

1. Download the latest version of LM Flash Programmer. The LM Flash Programmer is also included as

part of the BOOSTXL-TLC2543 EVM GUI installation in the following folder: C:\Program Files

(x86)\Texas Instruments\TLC2543\Firmware

2. Make sure the power select JP1 jumper on the TM4C1294 LaunchPad Development Kit is on ICDI.

Connect the Debug USB port on the TM4C1294 LaunchPad Development Kit to the PC with a micro

USB cable as shown in Figure 6. This must light the green power LED D0 on the TM4C1294

LaunchPad Development Kit.

Figure 6. TM4C1294 LaunchPad™ Development Kit Software Programming Setup

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BOOSTXL-TLC2543 EVM Setup

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BOOSTXL-TLC2543 EVM User Guide

3. Launch the LM Flash Programmer. In the Configuration tab select TM4C1294XL LaunchPad from the

drop-down menu as shown in Figure 7.

Figure 7. TM4C1294 LaunchPad™ Development Kit Selection in Configuration Tab

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4. Program the TM4C1294 with the BOOSTXL-TLC2543 EVM firmware from the Program tab as shown

in Figure 8.

Figure 8. TM4C1294 LaunchPad™ Development Kit Programming Using LM Flash Programmer

5. Disconnect the micro USB cable from the TM4C1294 LaunchPad Development Kit debug port after

programming and verification is successful. Switch the power select JP1 jumper position from ICDI to

the OTG location.

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