Texas Instruments CC3100BOOST, CC3100 User Manual

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User Guide

2014

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CC3100BOOST (CC3100 Booster Pack) User Guide, Ver 1.1

ECS Applications

ABSTRACT

This document describes the CC3100BOOST (CC3100 Booster Pack). It details the features of the hardware and also explains the correct usage of the board.

ABSTRACT

This document describes the CC3100BOOST (CC3100 Booster Pack). It details the features of the hardware and also explains the correct usage of the board.

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TABLE OF CONTENTS

1 Introduction ................................................................................................................................ 4

2 Overview ...................................................................................................................................... 4

3 Hardware description ................................................................................................................ 4

3.1 Board overview ....................................................................................................................... 4

3.2 Board features ........................................................................................................................ 5

3.3 Jumper and connector information ......................................................................................... 6

3.3.1 2x20 pin connector ...................................................................................................... 6

3.4 Jumper details ........................................................................................................................ 7

3.5 LED and switches .................................................................................................................... 8

3.6 Conducted testing ................................................................................................................... 9

3.7 Current measurement ........................................................................................................... 10

4 Connecting to a PC using FTDI Board ................................................................................... 11

4.1 Jumper settings on the BP Board .......................................................................................... 11

4.2 Jumper settings on the FTDI Board ...................................................................................... 12

4.3 FTDI Board details ................................................................................................................ 13

4.3.1 Overview ................................................................................................................... 13

4.3.2 Hardware details ....................................................................................................... 14

4.3.3 Driver requirements .................................................................................................. 15

5 Connecting to a Launchpad .................................................................................................... 16

5.1 Launchpad current limitation ................................................................................................ 16

5.2 Connecting to an experimenter’s board. ............................................................................... 18

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CC3100BOOST User Guide

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1 Introduction

This document provides a quick start guide on using the CC3100 Booster Pack Rev 2.0B . This is not applicable to other revisions of the board.

2 Overview

The CC3100 Booster Pack is a board designed to interface with the TI standard Launchpad including the Tiva-C series and the MSP430 value line launchpads. In addition to the launchpads, there is support available to mate the board with a FTDI Debug board to interface directly to a PC host using USB cable. A picture of the board is presented below with the main components marked.

3 Hardware description

3.1 Board overview

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FIGU RE 1 : HAR DWARE DETAIL S

3.2 Board features

 2x20 pin stackable connectors  On-board chip antenna with option for U.FL based conducted testing.  Power from on-board LDO using USB OR 3.3V from MCU Launchpad  Push buttons (2x)  LEDs (4x)  Jumper with 0.1 Ohm resistor for current measurement.  .8 Mbit serial flash  40 MHz crystal , 32KHz crystal and oscillator.

CC3100

RESET

Current Measurement

RESET BUTTON

Sense on Power

GPIO13

U.FL

Antenna

RF SIGNAL SELECT

TOP DIE FLASH Vcc

CC3100 Vcc

GPIO12

USB CONN

SERIAL FLASH

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 4 Layer PCB with 6mil spacing and track width. 

3.3 Jumper and connector information

3.3.1 2x20 pin connector

The signal assignment on the 2x20 pin connector is shown below. The convention of J1..J4 is replaced with P1…P4 to avoid confusion with the actual board reference.

Outer row connectors

Pin No

Signal Name

Direction

Pin No

Signal Name

Direction

P1.1

VCC(3.3V)

P2.1

GND

P1.2

UN-USED

P2.2

IRQ

OUT

P1.3

UART1_TX

OUT

P2.3

SPI_CS

P1.4

UART1_RX

P2.4

UN-USED

P1.5

nHIB

P2.5

nRESET

P1.6

UNUSED

P2.6

SPI_MOSI

P1.7

SPI_CLK

P2.7

SPI_MISO

OUT

P1.8

UN-USED

P2.8

UN-USED

P1.9

UN-USED

P2.9

UN-USED

P1.10

UN-USED

P2.10

UN-USED

Inner row connectors

Pin No

Signal Name

Direction

Pin No

Signal Name

Direction

P3.1

+5V

P4.1

ANT_SEL_1

OUT

P3.2

GND

P4.2

ANT_SEL_2

OUT

P3.3

UN-USED

P4.3

UN-USED

P3.4

UN-USED

P4.4

UART1_CTS

P3.5

UN-USED

P4.5

UART1_RTS

OUT

P3.6

UN-USED

P4.6

UN-USED

P3.7

UN-USED

P4.7

NWP_LOG_TX

OUT

P3.8

UN-USED

P4.8

WLAN_LOG_TX

OUT

P3.9

UN-USED

P4.9

WL_RS232_RX

P3.10

UN-USED

P4.10

WL_RS232_TX

OUT

Note : All signals are 3.3V COMS logic levels and is referred w.r.t. CC3100 IC. For e.g. UART1_TX is an output from the CC3100.

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For the SPI lines, the CC3100 always acts like a slave.

3.4 Jumper details

Reference

Usage

Comments

USB connector

For powering the booster pack when mated with a Launchpad

Power selection

Choose the power supply from the Lauchpad or the on-board USB.

J6 (1-2) power from MCU Launchpad J6 (2-3) power from on-board USB using

3.3V LDO

J24

Current measurement

Voltage is measured across the 0.1 Ohm resistor using a voltmeter.

Can be used for IDLE and Active currents.

For Hibernate currents, remove R42 and connect a ammeter across J24. Range (< 100uA)

J23

OOB Demo

Closed : GPIO_12 is hard pulled to Vcc Open : GPIO_12 is pulled to GND using

33K resistor.

J22

RESET

Closed : Routes the RESET signal from the MCU Launchpad to the CC3100.

Open : The RESET is cut off from the MCU. (Used with MSP430 boards where RESET line is muxed with TEST)

J8,J7

Booster pack header

2x10 pins each connected to the Launchpad.

J25

Flash power

Power the top die flash of the CC3100Z

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part with 3.3V LDO. Install this for all boards with the

CC3100Z parts.

Sense on power

Sense on power used for internal debug. SOP[2:0] = 000 [Functional 4W] SOP[2:0] = 001 [Functional 2W] SOP[2:0] = 010 [Load from EEPROM] SOP[2:0] = 011 [Boot Debug mode]

SOP[2:0] = 100 [UART LOAD] SOP[2:0] = 101 [TESTMODE 3] SOP[2:0] = 110 [TESTMODE 2] SOP[2:0] = 111 [TESTMODE 1]

RF Test

U.FL connector for conducted testing.

3.5 LED and switches

Reference

Usage

Comments

SW1

RESET

Reset the CC3100 when mated with the LP or FTDI board. Useful while updating the flash contents.

SW2

OOB Demo

Pull GPIO_13 to Vcc when pressed.

GPIO_09

Yellow LED to indicate state of GPIO_09. LED glows when GPIO_09 goes low.

GPIO_08

GREEN LED to indicate state of

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GPIO_08. LED glows when GPIO_08 goes low.

nHIB

Green LED Glows when the CC3100 device is

enabled using nHIB.

Power

RED LED to indicate the power line status.

Note : This LED can glow if the board is powered from any of the GPIO being high, and the Vcc is un-connected. This is not a valid state and should be avoided.

3.6 Conducted testing

The board is by default configured for radiated measurement using the on-board chip antenna. For conducted testing in the lab the following changes needs to be done on the board.

Mode

Change

Image

Conducted test using U.FL

C4 = 10pF C2 = DNP

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Radiated test using antenna

C4 = DNP C2 = 10pF

Note : The 10pF capacitor used should be of RF grade with high-Q to reduce the overall loss. Otherwise a 0 Ohm resistor can also be used for this.

3.7 Current measurement

The board provides a jumper connected to a 0.1 Ohm resistor for current measurement. The measurement is made by using a voltmeter across the jumper and multiplying the value obtained in mV by 10 to get the current in mA. The current measurement jumper is J24 as shown in Figure 1.

Note : The measurement may have up to 10% error due to resistor variation and contact resistance due to reflow soldering.

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4 Connecting to a PC using FTDI Board

FIGU RE 2 : P C CONNECT ION U SIN G FTD I

The image above shows the connection of the Booster Pack to the FTDI Board. The connectors should be aligned carefully considering that it does not have a polarity protection. The pin-1 of the connectors are marked on the board using a DOT and these should be aligned while mating.

Note : The mating and unmating force needed for these connectors may be large and may end up breaking the boards. To prevent this caution should be restrained while unmating these. Also , it is not recommended to mate the connectors all the way. About 3mm contact length is good enough for the board as shown in the figure above.

4.1 Jumper settings on the BP Board

The following table specifies the jumpers to be installed while mating with the FTDI board.

Jumper settings

Notes

J6 (1-2)

Power the BP from the FTDI. The jumper shall be placed close to the LED.

J25 (shorted)

The top die flash on CC3100Z devices powered from 3.3V directly

J24 (open)

No current measurement

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J23 (open)

OOB demo jumper

SOP jumpers

All open

J22 (shorted)

RESET control from FTDI and BP button

After installing these jumpers the board would resemble as below

4.2 Jumper settings on the FTDI Board

The following table specifies the jumpers to be installed while mating with the FTDI board.

Jumper settings

Notes

J22, J24, J21 shorted

Remaining jumpers Open

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After installing the jumpers, the board would resemble below

4.3 FTDI Board details

4.3.1 Overview

The FTDI Debug Board 2.0A is designed to connect the Booster pack to a PC using USB

connection. This is used to update the firmware on the BP using the “SL_Prog” utility and

also in software development using “SL_Studio”.

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4.3.2 Hardware details

The board has two FTDI ICs to enumerate multiple COM and D2XX ports. The details of the ports are given below

Ports available on J1

Port No

Port Type

Usage

Comments

D2XX

SPI port for SL Studio

D2XX

GPIO for SL Studio

Control the nRESET, nHIB, IRQ

MAC and NWP

Logger

SPI, GPIO,

UART, RT

Power

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VCP

COM port for flash programming

4 VCP

RT3

For RF debug using RT3 software

Note : On the PC only two of the four ports would be visible on the Device Manager. The D2XX ports are not listed under the “Ports” tab.

The first COM port in the list usually is used for the flash programming.

Ports available on J2

Port No

Port Type

Usage

Comments

VCP

MAC logg UART Tx for WLAN Debug

2 VCP

NWP log UART Tx for debugging

4.3.3 Driver requirements

The FTDI Debug board requires the user to install the associated drivers on a PC. This package is available as part of the SDK release and would be located at [InstallPath]\cc3100-sdk\tools\cc31xx_board_drivers\.

The install path is usually C:\ti\cc3100SDK

For SL_Prog

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5 Connecting to a Launchpad

The CC3100 Booster pack can be directly connected to a compatible Launchpad using the standard 2x20 pin connectors. The jumper settings needed for this connection is the same as that needed for the FTDI Debug board as described in the previous section.

Please ensure that the Pin1 of the 2x20 pins are aligned correctly before mating. The mated setup is as per the picture below. (Note the USB cable is connected to the Booster Pack directly to power it only. For debugging, the USB cable on the Launchpad is also required)

FIGU RE 3 : B OOSTER PACK CONNE CTED TO TI VA LAUN CHP AD

5.1 Launchpad current limitation

Some of the launchpads including the MSP430FRAM launchpads do not provide enough current to power the CC3100 booster pack. The booster pack can consume upto 400mA peak from the 3.3V and hence it may be needed to power is separately.

For this a USB connector is provided on the Booster Pack to provide the 3.3V separately. The power supply jumpers shall be configured as below when the power is supplied from the

on-board USB connector.