Texas Instruments CC3200MODLAUNCHXL User manual

CC3200MOD SimpleLink™ Microcontroller and
Wi-Fi® Network Processor Module - LaunchPad
Hardware
User's Guide
Literature Number: SWRU397
December 2014

Contents
1 Introduction......................................................................................................................... 4
1.1 CC3200MOD LaunchPad............................................................................................... 4
1.2 Key Features.............................................................................................................. 4
1.3 What's Included .......................................................................................................... 5
1.4 FCC/IC Regulatory Compliance........................................................................................ 5
2 Hardware Description........................................................................................................... 6
2.1 Block Diagram............................................................................................................ 7
2.2 Hardware Features....................................................................................................... 7
2.3 Connecting a BoosterPack.............................................................................................. 8
2.4 Jumpers, Switches and LEDs .......................................................................................... 8
2.5 Power..................................................................................................................... 14
2.6 Measure CC3200MOD Current Drawn .............................................................................. 16
2.7 RF Connections......................................................................................................... 18
2.8 Design Files ............................................................................................................. 19
3 Software Examples............................................................................................................. 20
3.1 Development Environment Requirements........................................................................... 20
4 Additional Resources.......................................................................................................... 21
4.1 LaunchPad Wiki......................................................................................................... 21
4.2 Information on the CC3200MOD ..................................................................................... 21
4.3 Download CCS, IAR.................................................................................................... 21
4.4 CC3200 Code Examples .............................................................................................. 21
4.5 CC3200 Application Notes ............................................................................................ 21
4.6 The TI E2E Community................................................................................................ 21
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List of Figures
1 CC3200MOD LaunchPad EVM Overview................................................................................ 6
2 CC3200MOD LaunchPad Block Diagram ................................................................................ 7
3 Pn-1 Marking on the CC3200MOD LaunchPad (White Triangle) ..................................................... 8
4 JTAG Headers ............................................................................................................... 8
5 I2C Connections ............................................................................................................. 9
6 UART Signals............................................................................................................... 10
7 SOP Jumpers .............................................................................................................. 10
8 2x20 Pin Connector........................................................................................................ 14
9 Powering From USB....................................................................................................... 15
10 Battery Power............................................................................................................... 15
11 Measuring Low Power..................................................................................................... 16
12 Measuring Active Power................................................................................................... 17
13 Radiated Testing Using Chip Antenna .................................................................................. 18
14 Board Set for Conducted Testing ........................................................................................ 18
List of Tables
1 JTAG Headers ............................................................................................................... 8
2 Jumper Settings.............................................................................................................. 9
3 Default I2C Addresses ...................................................................................................... 9
4 Jumper Settings.............................................................................................................. 9
5 UART Signals............................................................................................................... 10
6 SOP Lines................................................................................................................... 10
7 Miscellaneous Settings .................................................................................................... 11
8 Push Buttons................................................................................................................ 12
9 LEDs ......................................................................................................................... 13
10 Change Log................................................................................................................. 19
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User's Guide
SWRU397–December 2014
CC3200MOD SimpleLink™ Microcontroller and Wi-Fi®
Network Processor Module - LaunchPad Hardware
1 Introduction
1.1 CC3200MOD LaunchPad
Start your design with the CC3200 module LaunchPad (CC3200MODLAUNCHXL), which encapsulates
the industry’s first programmable wireless microcontroller (MCU) module with built-in Wi-Fi connectivity.
Created for the Internet of Things (IoT), the SimpleLink CC3200MOD is a wireless MCU module that
integrates an ARM Cortex-M4 MCU, allowing customers to develop an entire application using a single
device. The CC3200MOD integrates all required system-level hardware components including clocks, SPI
flash, RF switch, and all required passive components.
This document explains the various configurations of the CC3200MODLAUNCHXL, a low-cost evaluation
platform which hosts the CC3200MOD. The module LaunchPad also features programmable user buttons,
RGB LED for custom applications, temperature and accelerometer sensors, as well as onboard emulation
for debugging. The LaunchPad stackable headers interface demonstrates how to expand the functionality
of the CC3200MOD when interfacing with other peripherals on existing BoosterPack add-on boards, such
as graphical displays, audio codec, antenna selection, environmental sensing, and more. The
CC3200MODLAUNCHXL is provided as a complete platform solution including software, sample
applications, tools, user and programming guides, reference designs, and the TI E2E™ support
community. Figure 1 shows a photo of the CC3200MODLAUNCHXL board.
Visit the CC3200 Wiki page for design resources and example projects.
NOTE: The antennas used for this transmitter must be installed to provide a separation distance of
at least 20 cm from all persons, and must not be co-located or operating in conjunction with
any other antenna or transmitter.
1.2 Key Features
• FCC, IC, CE, and Wi-Fi® CERTIFIED™ modules, with ability to request certificate transfer for Wi-Fi
Alliance members
• CC3200MOD, SimpleLink Wi-Fi, internet-on-a-chip™ module solution with integrated MCU
• 40-pin LaunchPad standard that leverages the BoosterPack ecosystem
• FTDI-based JTAG emulation with serial port for flash programming
• Two buttons and three LEDs for user interaction
• Backchannel universal asynchronous receiver/transmitter (UART) through USB to PC
• On-board chip antenna with U.FL for conducted testing
• On-board accelerometer and temperature sensor for out-of-box demo
• Micro USB connector for power and debug connections
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1.3 What's Included
Kit Contents:
• CC3200MODLAUNCHXL development board
• Micro USB cable
• Quick Start guide
1.4 FCC/IC Regulatory Compliance
The CC3200 SimpleLink Wi-Fi and IoT solution with MCU LaunchPad hardware is FCC Part 15 and IC
ICES-003 Class A compliant.
SimpleLink is a trademark of Texas Instruments.
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2 Hardware Description
Figure 1. CC3200MOD LaunchPad EVM Overview
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2.1 Block Diagram
Figure 2. CC3200MOD LaunchPad Block Diagram
2.2 Hardware Features
• CC3200MOD, SimpleLink Wi-Fi, internet-on-a-chip module solution with integrated MCU40-pin
LaunchPad standard that leverages the BoosterPack ecosystem
• FTDI-based JTAG emulation with serial port for flash programming
• Supports both 4-wire JTAG and 2-wire SWD
• Two buttons and three LEDs for user interaction
• Virtual COM port UART through USB on PC
• On-board chip antenna with U.FL for conducted testing
• On-board accelerometer and temperature sensor for out-of-box demo with option to isolate them from
the inter-integrated circuit (I2C) bus
• Micro USB connector for power and debug connections
• Headers for current measurement and external JTAG connection
• Bus-powered device with no external power required for Wi-Fi
• Long range transmission with highly optimized antenna (200m typical in open air with a 6dBi antenna
AP)
• Can be powered externally, with 2xAA or 2xAAA alkaline batteries working down to 2.3V typical (typ)
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2.3 Connecting a BoosterPack
A compatible BoosterPack can be stacked on top of the LaunchPad using the 2x20 pin connectors. Note
that the connectors do not have a “key” to prevent the misalignment of the pins or reverse connection.
Ensure that the Vcc and 5V pins are aligned with the BoosterPack header pins. On the CC3200MOD
LaunchPad, a small white triangle symbol is provided near Pin-1 (see Figure 3) to orient all BoosterPacks.
This same marking, provided on compatible BoosterPacks, must be aligned before powering up the
boards.
Figure 3. Pn-1 Marking on the CC3200MOD LaunchPad (White Triangle)
2.4 Jumpers, Switches and LEDs
2.4.1 JTAG Headers
The headers are provided on the board to isolate the CC3200MOD device from the mounted FTDI JTAG
emulator. These jumpers are shorted by default when the board is shipped from TI. To connect an
external emulator, remove these jumpers and place the external emulator on the pins closer to the
CC3200MOD device.
Figure 4. JTAG Headers
Table 1. JTAG Headers
Reference Usage Comments
J8 (TCK) (1) JTAG Short : Routes the on-board emulator to the CC3200MOD.
J9 (TMS)(1)
J10 (TDI) Open: Isolates the on-board emulator from the CC3200MOD.
J11 (TDO)
(1) For the SWD mode, only TCK and TMS need to be shorted to the CC3200MOD.
When a battery is used, disconnect all JTAG headers to prevent any reverse leakage current.
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2.4.2 I2C Connections
The board features an accelerometer and a temperature sensor for the out-of-box demo. These are
connected to the I2C bus and can be isolated using the jumpers provided.
Figure 5. I2C Connections
By removing J2 and J3, the accelerometer and the temperature sensors are isolated from the I2C bus.
Note that this also removes any pull-up resistor from the I2C bus.
2.4.2.1 Jumper Settings
Table 2. Jumper Settings
Reference Usage Comments
Short : Connect the CC3200MOD I2C bus to the on-board sensors with
J2 I2C SDA pull-up
Open : Isolate the sensors from the CC3200MOD
Short : Connect the CC3200MOD I2C bus to the on-board sensors with
J3 I2C SCL pull-up
Open : Isolate the sensors from the CC3200MOD
J4 INT Short : Connect the accelerometer interrupt to the CC3200 on GPIO13
2.4.2.2 Default I2C Address
Table 3. Default I2C Addresses
Sensor Type Ref Part Number Slave Address
Temp sensor U6 TMP008 0x41
Accelerometer U10 BMA222 0x18
2.4.3 Power Connections
The board can be powered by using the on-board micro USB connector. An on-board LDO provides 3.3 V
for the CC3200MOD and the rest of the board to operate. This supply can be isolated from the LDO using
the jumpers on the board.
Table 4. Jumper Settings
Reference Usage Comments
J12 Current measurement Measures the current flowing into the CC3200 device.
Short: Supply the board power from the on-board LDO.
J13 Board power Open: Supply the board power from the J20 (battery connector)
J19 5 V power 5 V output from the USB VBUS (has a diode drop of up to 0.4 V)
Can be used to power the board from an external 2XAA battery
J20 3.3 V power input pack. It has in-built reverse voltage protection to prevent the battery
from being plugged in the reverse manner.
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2.4.4 UART Signals
The board supports a USB-based virtual COM port, which is used on the FTDI device FT2232D. There
are two ports on the FT2232: the first port is dedicated for the emulation (JTAG/SWD), and the second
port is used for the virtual COM port. The UART can also be routed to the 20-pin connector and the
selection is performed using jumpers on the board.
Figure 6. UART Signals
Table 5. UART Signals
Reference Usage Comments
Short 1-2: Route the signals to the 20 pin connector.
J6, J7 UART for Flash programming Short 2-3: Route the signals to the FTDI for Flash programming.
2.4.5 Sense on Power
The CC3200MOD can be set to operate in three different modes based on the state of the Sense on
Power (SOP) lines. These are pins 21, 34, and 35 on the CC3200MOD device. The state of the device is
described in Table 6.
Table 6. SOP Lines
Usage Comments
100 = Flash programming
SOP[2:0] 000 = Functional mode + 4 Wire JTAG
001 = Functional mode + 2 Wire JTAG
Note: SOP[2:0] corresponds to J15, J16, and J17, in the LaunchPad schematic design.
Figure 7. SOP Jumpers
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2.4.6 Other Miscellaneous
Table 7. Miscellaneous Settings
Reference Usage Comments
Short = Route the Accelerometer sensor interrupt to
Accelerometer
J4 the GPIO_13
Interrupt Open = Isolates the Interrupt to the GPIO_13
To observe the Network Processor (NWP), MAC
J5 Debug Header Logs.
J14 SOP2 Isolation Isolate SOP2 (GPIO_25) from the 20 pin connector
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2.4.7 Push Buttons and LEDs
Table 8. Push Buttons
Reference Usage Comments
This is used to RESET the
CC3200MOD device. This
signal is also output on the 20-
SW1 RESET pin connector to RESET any
external BoosterPack which
may be stacked.
When pushed, the GPIO_22
SW2 GPIO_22 will be pulled to VCC.
When pushed, the GPIO_13
SW3 GPIO_13 will be pulled to VCC.
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Table 9. LEDs
Referenc Color Usage Comments
e
This LED is used to indicate the state of
D1 Yellow nRESET nRESET pin. If this LED is glowing, the
device is functional.
This LED glows whenever the debugging is
D2 Green Debug enabled over the JTAG.
Indicates when the 3.3 V power is supplied to
D4 Red Power the board.
D5 Green GPIO_11 (1) Glows when the GPIO is logic-1
D6 Yellow GPIO_10(1) Glows when the GPIO is logic-1
D7 Red GPIO_09 Glows when the GPIO is logic-1
(1) GPIO_10 and GPIO_11 are used as I2C also. So whenever the pull-ups are enabled, the LEDs would glow.
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2.4.8 2x20 Pin Connector Assignment
The signal assignment on the 2x20 pin connector is shown in Figure 8. The P1-Pn naming convention is
used for 2x20 pin connectors only.
Figure 8. 2x20 Pin Connector
The signal mappings are as indicated in the table shown in Figure 8. All the signals are referred to by the
pin number in the SDK, and Figure 8 shows the default mappings. Note that some of the pins are
repeated across the connector. For instance, pin 62 is available on P1 and P4, but only P1 is connected
by default. The signal on P4 is marked with a *(star) to signify that it is not connected by default and can
be routed to the pin by using a 0 Ωresistor in the path. For the exact resistor placement, see the
schematics and placement diagram.
2.5 Power
The LaunchPad can be powered by the USB connection or by external 2xAA/2xAAA batteries.
2.5.1 USB Power
The LaunchPad is designed to work from the USB provided power supply. The LaunchPad enumerates as
a bus-powered device on the computer. When the board is powered from the USB connector, place the
jumpers on the following headers, as shown in Figure 9.
J12 (shorted)
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J13 (shorted)
Figure 9. Powering From USB
2.5.2 Battery Power (2 x 1.5 V)
The LaunchPad can also be powered from an external battery pack by feeding the voltage on the J20
header. This input features reverse voltage protection to ensure that the board is not damaged due to an
accidental reverse voltage. The following care should be taken while using the board with a battery:
1. Remove the USB cable.
2. Plug-in the battery pack on J20 with correct polarity (see Figure 10).
Figure 10. Battery Power
2.5.3 BoosterPack Power Supply
The CC3200MOD LaunchPad can be powered by a stacked booster-pack which can provide a 3.3 V
power on P1.1. During this mode, remove the J13 so that the on-board LDO is not overloaded.
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2.6 Measure CC3200MOD Current Drawn
To measure the current drawn of the CC3200MOD, use the 3V3 jumper on the jumper isolation block
(J12). The current measured in this mode includes only the CC3200MOD current, and no external blocks.
However, if a GPIO of the CC3200MOD is driving a high current load like LED, then that is also included
in this measurement.
2.6.1 Measuring Low Power (< 1mA)
Follow these steps to measure ultra-low power:
Figure 11. Measuring Low Power
1. Remove the 3V3 jumper (J12); attach an ammeter across this jumper.
2. Check that the CC3200MOD is not driving any high current loads directly, such as an LED, as this can
cause large current drawn.
3. Begin target execution and set the device to low-power modes (LPDS or Hibernate).
4. Measure the current. Note that if the current levels are fluctuating, it may be difficult to get a stable
measurement. It is easier to measure quiescent states.
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2.6.2 Measuring Active Power
Figure 12. Measuring Active Power
1. Remove the 3V3 jumper (J12).
2. Solder a 0.1 Ωresistor on the board at R62. Or attach a jumper wire between J12, so that it can be
used with a current probe.
3. Measure the voltage across the R62 using an oscilloscope with a differential probe. For the current
probe, coil the wire around the sensor multiple times for good sensitivity.
4. An ammeter can also be used for this measurement, but the results may be erroneous due to the
switching nature of the current.
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Resistor mounted
towards U.FL
Murata Connector
Resistor mounted
towards antenna path
Murata connector
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2.7 RF Connections
2.7.1 Radiated Testing (AP connection)
By default, the board ships with the RF signals routed to the on-board chip antenna. An on-board u.fl
(Murata) connector provides a means to perform the testing in the lab using a compatible cable.
Figure 13. Radiated Testing Using Chip Antenna
Figure 14. Board Set for Conducted Testing
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2.8 Design Files
2.8.1 Hardware
All design files include schematics, layout, Bill of Materials (BOM), Gerber files, and documentation, which
are available for download from www.ti.com/tool/CC3200MODLAUNCHXL
2.8.2 Revision History
Table 10. Change Log
PCB Revision Description
Rev 1.0 Initial release
2.8.3 Software
All design files including firmware patches, software example projects, and documentation are made
available from the SimpleLink Wi-Fi Platform page.
The Software Development Kit (SDK) for use with the CC3200 LaunchPad can be obtained from
http://www.ti.com/tool/cc3200sdk.
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3 Software Examples
3.1 Development Environment Requirements
Using any of the following software examples with the LaunchPad requires an integrated development
environment (IDE) that supports the CC3200 device.
For more details on where to download the latest IDE, see Section 4.3.
The CC3200 Programmer's guide (SWRU369) has detailed information on software environment setup,
with examples.Refer to this document for further details on the software sample examples.
3.1.1 CCS
CCS 6.0 or higher is required. When CCS has been launched and a workspace directory chosen, use
Project →Import Existing CCS Eclipse Project. Direct it to the desired demo’s project directory containing
main.c.
3.1.2 IAR
IAR 6.70 or higher is required. To open the demo in IAR, choose File →Open →Workspace…, and direct
it to the *.eww workspace file inside the \IAR subdirectory of the desired demo. All workspace information
is contained within this file. Additional Resources www.ti.com
The subdirectory also has an *.ewp project file. This file can be opened into an existing workspace using
Project →Add-Existing-Project….
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