Texas Instruments TI CC3000 Manual de usuario

TI CC3000 Evaluation Module

User's Guide

Literature Number: SWRU326

November 2012

Contents

Preface ....................................................................................................................................... 4

1 Introduction ........................................................................................................................ 5

2 CC3000 EM Board ............................................................................................................... 6

2.1 EM Board Top View ........................................................................................................ 6

2.2 EM Board Bottom View .................................................................................................... 9

2.3 Antenna ..................................................................................................................... 10

2.4 Hardware Setup ........................................................................................................... 13

2.5 Schematics ................................................................................................................. 14

2.6 Bill of Materials (BOM) .................................................................................................... 15

3 Layout Guidelines ............................................................................................................. 16

4 Application Development ................................................................................................... 21

2Contents SWRU326–November 2012

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List of Figures

2-1. CC3000 EM Board Top View.............................................................................................. 6

2-2. CC3000 EM Board Bottom View.......................................................................................... 9

2-3. Antenna Location and RF Trace Routing .............................................................................. 10

2-4. Matching Circuit Between the Antenna and the CC3000 EM Board ............................................... 11

2-5. Return Loss from the ACX Antenna and Matching Circuit........................................................... 11

2-6. Antenna Radiation Patterns.............................................................................................. 12

2-7. Host PCB Mating Connector Arrangement ............................................................................ 13

2-8. Schematics of the CC3000 EM Board.................................................................................. 14

3-1. Module Layout Guidelines................................................................................................ 16

3-2. Module Layout Guidelines................................................................................................ 17

3-3. Trace Design for the PCB Layout ....................................................................................... 18

3-4. Layer 1 Combined With Layer 2......................................................................................... 18

3-5. Antenna and RF Trace Routing Layout Guidelines................................................................... 19

3-6. Power Supply Routing of the CC3000 EM Board..................................................................... 20

4-1. MSP-EXP430FR5739 Test Platform and CC3000 EM Board....................................................... 21

List of Tables

2-1. Key Parts of CC3000 EM Board Top View.............................................................................. 7

2-2. J2 Configuration of the CC3000 EM Board.............................................................................. 7

2-3. Header J4 of the CC3000 EM Board Top View......................................................................... 7

2-4. Header J5 of the CC3000 EM Board Top View......................................................................... 8

2-5. Header J6 of CC3000 EM Board Bottom View ......................................................................... 9

2-6. J7 of CC3000 EM Board Bottom View................................................................................... 9

2-7. BOM for the TI CC3000 EM Board...................................................................................... 15

3-1. Module Layout Guidelines................................................................................................ 17

3-2. Trace Design Measurement Values .................................................................................... 18

3-3. Antenna and RF Trace Routing Layout Guidelines................................................................... 19

SWRU326–November 2012 List of Figures

Preface

SWRU326–November 2012

Read This First

About This Manual

This user guide describes how to use the TI CC3000 evaluation module (EM) board to evaluate the

performance of the TI CC3000 module.

Related Documentation From Texas Instruments

•TI SimpleLink™ CC3000 Module – Wi-Fi 802.11b/g Network Processor Data Sheet (SWRS126)

• CC3000 Wiki for MCU: http://processors.wiki.ti.com/index.php/CC3000_Wi-Fi_for_MCU

If You Need Assistance

The primary sources of CC3000 information are the device-specific data sheets and user’s guides. For the

most up-to-date version of the user’s guide and data sheets, go to http://www.ti.com/product/cc3000.

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 at his own expense will be required

to take whatever measures may be required to correct this interference.

4Read This First SWRU326–November 2012

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Chapter 1

SWRU326–November 2012

Introduction

This user guide describes how to use the TI CC3000 evaluation module (EM) board to evaluate the

performance and functionality of the TI CC3000 module. The CC3000 module is a self-contained Wi-Fi®

solution that enables internet connectivity for a wide variety of microcontroller (MCU) systems. The

SimpleLink Wi-Fi from TI minimizes the host MCU software requirements, making it ideal for low-power

and low-cost applications. The CC3000 EM board is targeted for TI MCUs, such as the MSP430-FR5739

and other various host platforms. This document details the key parts and features of the CC3000 EM

board and the different options available to the user. This document includes layout guidelines to assist

the designer in PCB development.

SimpleLink is a trademark of Texas Instruments.

Wi-Fi is a registered trademark of Wi-Fi Alliance.

SWRU326–November 2012 Introduction

Chapter 2

SWRU326–November 2012

CC3000 EM Board

This section describes the key parts and features of the CC3000 EM board top and bottom views.

2.1 EM Board Top View

Figure 2-1 shows the key parts and jumpers mounted on the top of the CC3000 EM board. Table 2-1

describes the key parts of the EM board. Table 2-2 describes the J2 configuration of the CC3000 EM

board. Table 2-3 and Table 2-4 describe the J4 and J5 signals, respectively.

Figure 2-1. CC3000 EM Board Top View

6CC3000 EM Board SWRU326–November 2012

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EM Board Top View

Table 2-1. Key Parts of CC3000 EM Board Top View

Key Parts Descriptions

CC3000MOD Core module for performance evaluation (for more information, see the CC3000

module data sheet).

Antenna Can be used for radiated testing by reworking the capacitor to correct pads

J1 U.FL RF connector used for conductive RF test

J2 Used to switch between test mode and operation mode. When pins 2 and 3 are

shorted, J2 runs in operation mode. When pins 1 and 2 are shorted, J2 runs in test

mode.

J3 Used to test power consumption. The pins of the jumper are shorted in operation

mode. For power testing, the jumper is removed and an ammeter bridges the pins.

J4 Through-hole test points (For more information, see Table 2-3.)

J5 Through-hole test points (For more information, see Table 2-4.)

Table 2-2. J2 Configuration of the CC3000 EM Board

Mode Description

Test mode: CC3000 radio tool(1) Connect pins 1 and 2. Test mode is used with the CC3000 radio tool for operating,

testing, and calibrating the CC3000 chip-set designs during development. This tool

uses the RS232/UART pins to run radio frequency (RF) RX and TX tests on the

CC3000 module. For more information, see the CC3000 wiki.

Functional mode: Normal mode Connect pins 2 and 3. Normal mode is for regular functionality between the host

platform and the CC3000 module.

(1) For more information about test software for the PC, go to the CC3000 wiki at

http://processors.wiki.ti.com/index.php/CC3000_Wi-Fi_for_MCU.

Table 2-3. Header J4 of the CC3000 EM Board Top View

J4 Pin Pin Name Pin Type Descriptions

1 GND – Ground

2 Reserved – Reserved

3 Reserved – Reserved

4 Reserved – Reserved

5 WL_RS232_TX Output RS232 transmit output; used for the radio tool serial

interface in test mode. Leave floating in functional mode.

6 WL_RS232_RX Input RS232 receive output; used for the radio tool serial

interface in test mode. Leave floating in functional mode.

7 GND – Ground

8 WL_SPI_CS Input Host interface SPI chip select

9 WL_SPI_DOUT Output Host interface SPI data output

10 WL_SPI_IRQ Output Host interface SPI interrupt request

11 WL_SPI_DIN Input Host interface SPI data input

12 WL_SPI_CLK Input Host interface SPI clock input

SWRU326–November 2012 CC3000 EM Board

EM Board Top View

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Table 2-4. Header J5 of the CC3000 EM Board Top View

J5 Pin Pin Name Pin Type Descriptions

1 SCL_CC3000(1) Output I2C clock signal output from the CC3000 module. This

pin is connected to SCL_EEPROM through a 0-Ω

resistor and is not used by end users.

2 SCL_EEPROM(1) Input I2C clock signal input from EEPROM inside the CC3000

module. This pin is connected to SCL_CC3000 using a

0-Ωresistor and is not used by end users.

3 SDA_CC3000(1) Input/Output I2C data signal from the CC3000 module. This pin is

connected to SDA_EEPROM using a 0-Ωresister and is

not used by end users.

4 SDA_EEPROM(1) Input/Output I2C data signal from EEPROM inside the CC3000

module. This pin is connected to the SDA_CC3000

device using a 0-Ωresistor and is not used by end users.

5 VBAT_SW_EN Input Active-high enables the signal from the host device.

6 GND – Ground

7 GND – Ground

8 VIO_HOST Power In VIO power supply from the host to the module. For the

MSP430 host platform, VIO_HOST = VBAT_IN. For other

platforms that have different voltage levels from battery

voltages, R14 can be removed.

9 VBAT_IN Power In Battery voltage input to module. For the MSP430 host

platform, VIO_HOST = VBAT_IN. For other platforms

that have different voltage levels from the battery

voltages, R14 can be removed.

10 GND – Ground

11 Reserved – Reserved

(1) The EM board arrives with EEPROM preprogrammed.

8CC3000 EM Board SWRU326–November 2012

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EM Board Bottom View

2.2 EM Board Bottom View

The two EM board mating connectors J6 and J7 connect to the host platform and are mounted on the

bottom of the EM board, as shown in Figure 2-2.Table 2-5 and Table 2-6 describe the signals brought out

from these two EM mating connectors.

Figure 2-2. CC3000 EM Board Bottom View

Table 2-5. Header J6 of CC3000 EM Board Bottom View

J6 Pin Pin Name Module Pin Type Description

1 GND – Ground

5 Reserved – Reserved

10 VBAT_SW_EN Input Active-high enable signal from the host device

12 WL_SPI_IRQ Output Host interface SPI interrupt request

14 WL_SPI_CS Input Host interface SPI CS

16 WL_SPI_CLK Input Host interface SPI clock input

18 WL_SPI_DIN Input Host Interface SPI data input

19 GND – Ground

20 WL_SPI_DOUT Output Host interface SPI data output

Table 2-6. J7 of CC3000 EM Board Bottom View

J7 Pin Pin Name Module Pin Type Description

2 GND – Ground

7 VBAT_IN Power In Battery voltage input to the module

9 VBAT_IN Power In Battery voltage input to the module

15 Reserved – Reserved

SWRU326–November 2012 CC3000 EM Board

Antenna

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2.3 Antenna

The ACX ceramic antenna is mounted on the EM board with a specific layout and matching circuit for the

radiation tests conducted in FCC, CE, and IC certifications. Figure 2-3 shows the location of the ACX

ceramic antenna on the EM board and the RF trace routing from the CC3000 module to the antenna.

Figure 2-4 shows the matching circuit between the antenna and the EM board. The return loss is based

on the matching circuit and RF trace routing, as shown in Figure 2-5.Figure 2-6 shows the radiation

patterns on XY, XZ, and YZ planes.

Figure 2-3. Antenna Location and RF Trace Routing

10 CC3000 EM Board SWRU326–November 2012

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