Table of Contents


The SimpleLink™ Wi-Fi® CC3200 device is a single-chip microcontroller (MCU) with built-in Wi-Fi connectivity. The CC3200 device is a wireless MCU that integrates a high-performance ARM® Cortex®-M4 MCU, allowing customers to develop an entire application with a single IC.

For more information, visit

This is v1.5.0 of the CC3200 SDK.

Getting Started

To get started using the CC3200 LaunchPad with the Out of Box experience, please see the CC3200 Quick Start Guide.

To get started with your project development, please see the CC3200 Getting Started Guide.

What’s New

Updating the servicepack

It is recommended to update the service pack to the latest available, which can be downloaded from the CC3200 SDK download page.

For more information, see the CC3100 & CC3200 UniFlash Guide.


This release was validated with the following components:

Device Support

Directory Structure

Directory Name Content
Docs Quick Start Guide for LaunchPad Out of Box Experience
Getting Started Guide for application development
SimpleLink Host Driver Programmer’s API Guide (simplelink_api folder)
CC3200 TI-RTOS User’s Guide
Power Management Framework Guide
OTA Update Application Note
SimpleLink OTA Extlib API Guide
CC3200 Peripheral Driver Library API Guide
API Guides for MQTT and HTTP libraries (netapps folder)
Driverlib Peripheral driver library source files. driverlib.a is provided in CCS, GCC and IAR directories.
Examples Example applications in source code
Inc Register definition header files
Middleware Power Management Framework providing an easy-to-use infrastructure for low power solutions
Netapps HTTP client library source files
HTTP server library source files (webserver)
JSON parser library source files
MQTT client library source files
MQTT client-server library source files
SMTP client library source files
TFTP client library source files
XMPP client library source files
Oslib Interface file to configure Free-RTOS or TI-RTOS
SimpleLink The SimpleLink Network Processor host driver code. Pre-built simplelink library (simplelink.a) for OS, NON_OS, PM_framework and NON_OS_PM are available in CCS and IAR directories, plus debug versions of these libraries. For GCC compiler, libsimplelink.a and libsimplelink_nonos.a are available in gcc folder.
SimpleLink Ext Libraries FLC library source files
OTA library source files
Provisioning library source files
Third Party FATFS library source files
FreeRTOS library source files
TI-RTOS Abstraction layer files for TI-RTOS
Tools ccs_patch – Files required for CCS-FTDI-LP connection
gcc_scripts – Script files required for GCC compiler
ftdi - Contains CC3200 FTDI-USB driver for Windows
iar_patch – Files required for IAR-FTDI-LP connection


Networking Applications

Example Description OS Support Documentation
Antenna Selection Antenna Selection is the method by which users can configure the WLAN RF antenna on the CC3200 device to improve radio performance. TI-RTOS antenna_selection README
Connection Policy Demonstrates the connection policies which determine how the CC3200 connects to an AP. Non-OS connection_policy README
Email Demonstrates how to send emails via SMTP on a hardware interrupt. TI-RTOS email README
Enterprise Security Demonstrates the connection to an enterprise network using the flashed certificate. Certificate is flashed onto the serial flash. Non-OS ent_wlan README
File Download Demonstrates how to connect to a server to download a file and save it on the serial flash. Non-OS file_download README
File Operations Demonstrates the file operations on the serial flash. Non-OS file_operations README
Get Time Connects to a SNTP server and requests time information. FreeRTOS get_time README
Get Weather Connects to a weather service website and requests weather data. FreeRTOS get_weather README
Getting Started with WLAN AP Demonstrates device capability to behave as an AP in a typical networking system. TI-RTOS getting_started_with_wlan_ap README
Getting Started with WLAN Station Demonstrates device capability to behave as a station in a typical networking system. TI-RTOS getting_started_with_wlan_station README
Hibernate Showcases hibernate mode as a power-saving tool in a networking context, demonstrated as a UDP client. FreeRTOS hib README
HTTP Client Demo Demonstrates the HTTP Client library to enable the device as an HTTP Client. Non-OS http_client_demo README
HTTP Server Demonstrates the internal HTTP Server hosted on the CC3200. FreeRTOS httpserver README
Idle Profile (Non OS) Demonstrates a low power mode (LPDS) using the Power Management Framework in a Non-OS environment. Non-OS idle_profile_nonos README
Idle Profile Demonstrates a low power mode (LPDS) using the Power Management Framework. FreeRTOS idle_profile README
mDNS Demonstrates mDNS functionality in CC3200. This application showcases “mDNS advertise” and “mDNS listen” functionality. Non-OS mdns README
Mode Configuration Configure the device either to a station or an Access Point. Non-OS mode_config README
MQTT Client Showcases the device acting as a MQTT client in a fully functional MQTT network. TI-RTOS/FreeRTOS mqtt_client README
MQTT Server Showcases the device acting as an MQTT Server managing multiple local clients and allowing local clients to communicate with remote MQTT clients. FreeRTOS mqtt_server README
NWP Filter Demonstrates the RX filtering feature on the CC3200. Non-OS nwp_filter README
OTA Update Showcases Over-The-Air (OTA) firmware update including MCU image, service pack, and additional user files. FreeRTOS/Non-OS OTA Application Note
Out of Box Demonstrates the Out of Box Experience with the CC3200 Launch Pad. FreeRTOS out_of_box README
P2P (Wi-Fi Direct) Demonstrates Wi-Fi direct (Peer to Peer) feature on the CC3200. Non-OS p2p README
Power Measurement Provides users the ability to configure the device in various low power modes and profiles for power measurements. Non-OS power_measurement README
Provisioning AP Demonstrates the AP provisioning feature. AP Provisioning is the method by which users can configure AP information on the CC3200 device from a web browser. Non-OS provisioning_ap README
Provisioning SmartConfig Demonstrates the SmartConfig provisioning feature. TI SmartConfig is the proprietary method where users can use a Wi-Fi enabled device to configure the CC3200 to an AP on the fly. Non-OS provisioning_smartconfig README
Provisioning WPS Demonstrates how to use WPS for Wi-Fi provisioning. Non-OS provisioning_wps README
Scan Policy Demonstrates how to set the scan policy and enables the scan. Non-OS scan_policy README
Sensor Profile Demonstrates a low power mode (hibernate) using the Power Management Framework. FreeRTOS sensor_profile README
Serial Wi-Fi Serial Wi-Fi is a capability designed to provide easy, self-contained terminal access behavior over a UART interface. FreeRTOS serial_wifi README
SSL Showcases SSL implementation on the CC3200. Non-OS ssl README
TCP Socket Demonstrates device communication over a network using TCP protocol. Non-OS tcp_socket README
TFTP Client Demonstrates how a client application can read/write a file from/to the TFTP server running on a network. FreeRTOS tftp_client README
Transceiver Mode The RX Statistics feature is used to inspect the medium in terms of congestion, distance, and validate the RF hardware. Using the RSSI information it can help position the CC3200 in an ideal location. Non-OS transceiver_mode README
UDP Socket Demonstrates device communication over a network using UDP protocol. Non-OS udp_socket README
Watchdog System Demonstrates the use of a watchdog timer (WDT) in a complete system with MCU and networking subsystem. Non-OS watchdog_system_demo README
WebSock Simple Demonstrates the real-time streaming capability of websocket protocol. FreeRTOS websocket_simple README
Wi-Fi Audio Demonstrates audio streaming on the CC3200. Device can act as a speaker or microphone. FreeRTOS wifi_audio_app README
XMPP Demonstrates the connection and communication via a XMPP server. TI-RTOS xmpp README

MCU Only Applications

Example Description OS Support Documentation
ADC Demonstrates the functionality of the CC3200 ADC module using driverlib APIs. Non-OS adc README
AES Demonstrates the AES encryption feature on the CC3200. Non-OS aes README
Application Bootloader Demonstrates the secondary bootloader operations to manage updates to application image. Non-OS application_bootloader README
Blinky Demonstrates the GPIOs using driverlib APIs to control LEDs on the CC3200. LaunchPad. Non-OS blinky README
CRC Demonstrates the functionality of the CC3200 CRC module using driverlib APIs. Non-OS crc README
DES Demonstrates the DES encryption feature on the CC3200. Non-OS des README
Dynamic Library Loader Demonstrates dynamic loading of an application binary from non-volatile memory while the program is being executed. FreeRTOS dynamic_lib_loader README
FreeRTOS Demo Showcases FreeRTOS functionality like task creation and inter-task communication using message queues. FreeRTOS freertos_demo README
I2C Demonstrates the functionality of the CC3200 ADC module using driverlib APIs. Non-OS i2c_demo README
Interrupt Demonstrates interrupt preemption and tail-chaining capabilities. Non-OS interrupt README
MCU Sleep Demonstrates the sleep mode of the MCU. Non-OS sleep README
Pulse Width Modulation (PWM) Demonstrates the functionality of the CC3200 PWM module using driverlib APIs. Non-OS pwm README
SDHost Demonstrates the functionality of the CC3200 SDHost module using driverlib APIs. Non-OS sdhost README
SDHost FatFS Demonstrates the functionality of the CC3200 SDHost FATFS module using driverlib APIs to provide the block level read/write access to the SD card. Non-OS sdhost_fatfs README
SHA-MD5 Demonstrates the SHA-MD5 Hash Algorithm on the CC3200. Non-OS shamd5 README
SPI Demonstrates the functionality of the CC3200 SPI module using driverlib APIs. Non-OS spi_demo README
Timer Demonstrates the usage of 16 bit timers to generate interrupts that toggle GPIOs. Non-OS timer README
Timer Count Capture Demonstrates the timer count capture feature to measure the frequency of an external signal. Non-OS timer_cc README
UART Demonstrates the functionality of the CC3200 UART module using driverlib APIs. Non-OS uart_demo README
UART DMA Demonstrates UART using driverlib APIs with uDMA and interrupts. Non-OS uart_dma README
uDMA Demonstrates different DMA modes of transfer. Non-OS udma README
Watchdog Demo Application Demonstrates the watchdog timer functionality to reset the system whenever the system fails. Non-OS watchdog README

Fixed Issues

Host Driver

ID Summary
SLWIFICSR-229 Request x509 serial number to be exposed via getsockopts
CC3X00SDK-203 Add host driver macro to disable WPA enterprise server authentication
SLWIFICSR-434 Add host driver macro to enable extended scan
SLWIFICSR-435 Add host driver macro to enable extended scan
SLWIFICSR-436 Add host driver wlan option to mask supported rates
SL_WIFI_R1-1665 Add host driver wlan option to enable/disable PSPOLL mode

Known Issues

Network Processor / Host Driver

ID Title Description Impact Workaround
SL_WIFI_R1-400 WiFi Security: CC3100 and CC3200 Supports only WEP with Key Index 0 (==> AP Key index 1) When using WEP security – only WEP index 0 is supported Can’t use more than one key in WEP security None
SL_WIFI_R1-149 WiFi Security: Traffic Stop while WPA EAP-TLS Enterprise and Reauthentication enabled In WPA EAP-TLS security the traffic stopped when Reauthentication packet is received Traffic stopped Disable reauthentication or set it to a very long time
SL_WIFI_R1-1258 Scan: Results list contain duplicate networks Device might returns duplicate networks when the network list is not totally filled and the get scan results ask for fewer entries than what was actually found. Duplicate networks in Scan results list Read the maximum entries at once (20 entries) or to read one by one starting from the end to the beginning and check for duplicates. Once a duplicate was found the list is completed
SL_WIFI_R1-747 sl_NetAppDnsGetHostByName return with no answer in high traffic In high Rx traffic some DNS packets can get lost No answer on request Run API again
SL_WIFI_R1-808 UDP/RAW socket data payload is limited to MTU size Tx IP Fragmentation is not supported for UDP and RAW Tx Packet bigger than MTU size will lead that portion of the packet will be discard Use packet size <= MTU size
SL_WIFI_R1-934 DHCP: SL continues using its previous IP address if an invalid IP in the DHCPACK (before lease time expired) DHCPACK arrives to SL with invalid address in the DHCPACK params address field but also the IP destination is the same invalid address (MAC address is the valid SL address). SL does not listen to other IPs address as destination but his own therefore this DHCPACK is not processed and SL continue to use his old address until the lease time expires The device will continue to use the previous IP address N/A
SL_WIFI_R1-1016 NS: SL device should discard ICMP Req datagram with problem in IP Header According to the RFC – if the gateway or host processing a ICMP Req datagram and finds a problem with the header parameters such that it cannot complete processing the datagram it must discard the datagram Low impact - The SL device sends ICMP reply message N/A
SL_WIFI_R1-1313 NS: Error -105 when trying to open 4 TCP server sockets while the internal HTTP server is running While the HTTP server is running one of the TCP server is been used and limit the number of user TCP Servers. Error -105 - SL_ENOBUFS [No buffer space available] Only 3 TCP servers can be used while the HTTP is running Disable the internal HTTP Server if 4 TCP Server need to be used
SL_WIFI_R1-1347 NS: blocking accept on secure socket doesn’t return Procedure: open secured socket, bind, listen, select on socket. Select will not return when other side is connected Select doesn’t return Don’t use select method for accept on secure socket
SL_WIFI_R1-1320 Transceiver mode: Can’t configuring the channel of a RAW Socket if it’s already open Changing the channel while a RAW socket is open to receive by using SetSockOpt command can halt the Host. The command response on SetSockOpt doesn’t return. As a result, the host is might get stuck if it configured to blocking mode. Host might get stuck Close the socket and open it again with the correct channel
CC3x00SDK-69 WPS PIN Connect might fail if pin code is not null-terminated If the PIN code from the HOST is not null terminated the string can be wrongly used and in some cases the connection doesn’t succeed Connection doesn’t succeed Add null termination to the PIN code string
CC3x00SDK-166 Host: Set/Get time is limited up to year 2038 time.h (standard time library) is limiting the structure to a signed 32-bit integer, and this number is interpreted as the number of seconds since 00:00:00 UTC on 1 January 1970 Low impact – Certifications that are bounded by date will expire after year 2038 N/A
SL_WIFI_R1-930 In Enterprise network the device will Frequently Wakeup due to IPV4 BRDCST Rx frames On enterprise network there a lot of BRDCST packets Increase in power consumption Add a filter to block the broadcast packets. Filter is specific to the enterprise network.

Notes for CC3200 Application Developers

A core reset from the debugger will only reset the applications MCU and leave the networking subsystem active. This means while using the debugger on the CC3200 LaunchPad, the developer would have to manually reset the LaunchPad after every debug session before loading the new application image.

To improve the developer’s experience, the following was added to the implementation of sl_Start:

For ease of use, the latest CC3200 SDK provides separate configurations of the SimpleLink library for development (debug) and deployment scenarios.

Release libraries

Development libraries

All the above configurations are pre-built in the SDK package along with their generated output library.

Note that the debug builds will result in overall greater current consumption. Developers should link to the release library builds for deployment by updating the library path to simplelink.a in their IDE.

By default, the SimpleLink spawn task stack size is set to 2048 bytes. While this size is sufficient for the applications available in the SDK, this value may need to be changed depending on the callback implementation/call flows. In order to change the stack size, the oslib library must be rebuilt with the macro SPAWN_TASK_STACK set to the optimum stack size value (for example -DSPAWN_TASK_STACK=3072).

Implementation of osi.h is shown below:

#define STACK_LEN (2048) /*Stack Size*/

Post-LPDS settings

PRCMCC3200MCUInit API must be called after coming out of LPDS. If this API is not called post-LPDS, then the interrupts and DMA requests for GPIO and I2C modules would not work since their initial configuration is lost after LPDS. PRCMCC3200MCUInit has these settings and will reconfigure these modules.

The Idle Profile example demonstrates this from the lp3p0_restore_soc_data implementation.

Default GPIO settings

All GPIO pins default to Mode 1 on power-up, unless programmed by the MCU. Set all unused pins except the serial flash SPI (pins 11, 12, 13, 14) and JTAG (pin 16, 17, 19, 20) to Mode 0 to prevent any bus contention.

Add following code snippet to void PinMuxConfig(void):


For example, by default I2C is muxed to pins 1 and 2. If the application assigns other pins to the I2C module, this would cause contention. To resolve contention on I2C lines, add following code snippet to void PinMuxConfig(void):


Technical Support