SimpleLink™ Wi-Fi SDK 10.10.00.18 Release Notes

Table of Contents

Introduction

The SimpleLink™ Wi-Fi® SDK provides a comprehensive software toolkit for developing IoT applications on the CC35xxE family of wireless MCUs. This powerful SDK includes essential components like the Bluetooth® LE protocol stack supporting Bluetooth 5.4, Wi-Fi 6 with an included networking stack based on LwIP, and the FreeRTOS kernel and TI Drivers in one easy-to-use software package, along with example applications and exhaustive documentation. When used with TI’s SimpleLink Wi-Fi® CC35xxE LaunchPads, the SDK provides a complete development solution for IoT applications. This SDK is also available on GitHub at https://github.com/TexasInstruments/simplelink-wifi-sdk.

This is version 10.10.00.18 of the Wi-Fi SDK
Released on 2026-03-31

Release highlights

• New device support CC35X1ET
• SDK New example applications:
  • CC35XX OTA Example
  • CC35XX Power measurement
  • CC35XX BLE DTM
  • CC35XX BLE controller
    
• Raw Wi-Fi CSI data available to application
• FWU Support for accept/reject API
• External coexistence 3-wire PTA Master
• Bug Fixes

Supported Features

• Wi-Fi
  • IEEE802.11 a,b,g,n,ac,ax
  • 2.4GHz & 5GHz bands
  • Supported roles: Station role, AP role (up to 8 connections, Wi-Fi4 only) , MultiRole (STA-AP), P2P (Client and Go)
  • Support Security types
    • Personal - WPA3, WPA2/WPA3 (Transition mode), WPA2 Personal, WPA/WPA2 (mixed mode, STA role only), WPS, OPEN
    • Enterprise (STA role only) - WPA3, WPA2 (TLS,TTLS, PEAP0)
  • Supported Profiles and connection policies
  • Support OTA lib
  • Date and time module
  • Agile Multiband
  • DFS support and channel switch
  • Option to disable WI-Fi6 via eFuse / INI
  • Raw Wi-Fi CSI data available to application
  • CC35X1ET device support
  • Auto flash detection
  • AP role, max STA count updated to 8
• BLE
  • Implementing BLE 5.4 specification
  • Roles: Broadcaster, Peripheral, Observer, Central, Multirole
  • Legacy & Extended Advertisement
  • Legacy & Extended Scan
  • Multiple BLE Connections (up to 16)
  • Supported PHYs: 1M, 2M, Coded
  • Privacy
  • Secured connection
  • BLE store bond information support
• Coexistence - internal & external
• Support Drivers - I2C Controller, DMA, GPIO, GPTIMER, PWM, SPI, UART2, SHA2, AES, POWER, ADC, Watchdog, SDIO, I2S, SDMMC, TRNG, ECC (for ecdsa/ecdh/eddsa), CAN
• SDK content
  • FreeRTOS
  • WPA Supplicant
  • lwIP
  • NimBLE
  • Driver examples
  • MbedTLS
  • Support OTA lib
  • CC35xx network terminal example
  • CC35xx BLE Wi-Fi provisioning example
  • CC35xx Mqtt client example
  • CC35xx AT-Commands example
  • CC35XX Indigo example
  • CC35XX OTA Example
  • CC35XX Power measurement
  • CC35XX BLE DTM
  • CC35XX BLE controller
    
  • NVOCMP package
  • Dynamic support for different flash types
    • IS25WJ032F
    • IS25WJ064F
    • W25Q64JW
    • W25Q32JW
    • W25Q12PW
    • PY25Q32LB
    • PY25Q64LB
    • PY25Q128LA
    • PY25Q256LC
    • GD25LF32ETJGY
    • GD25LF64ETJGY
    • MX25U3235F_EXPERIMENTAL
    • MX25U6435F_EXPERIMENTAL
    • IS25WJ128F_EXPERIMENTAL
  • Power management
  • PSA APIs for selected Crypto drivers
  • PSRAM support
    • APS6404L-SQH - 8MB - Stacked

Documentation

• User’s Guide
• Quick Start Guide
• Drivers Release Notes

Installer Operating Systems Support

• Windows 11
• Ubuntu 22.04.05 LTS 64-bit
• macOS 13.3.1

Dependencies

This release was validated with the following components:

• Code Composer Studio 20.4.1
• TI-Clang 4.0.4 LTS
• GCC 12.3.Rel1-0
• ToolBox 4.1.16
• Sysconfig 1.26.3

Packages

• Wi-Fi \ BLE Firmware | 1.8.0.42 |
• Wi-Fi \ BLE PHY | x.x.x.45.6.1.26.71 |
• NimBLE | 1.7.0 |
• WPA Supplicant | 2.10 |
• LWIP | 2.1.3 |
• MbedTLS | 3.6.3 |

Device Support

CC35xx ICs:

• CC3500E
• CC3501E
• CC3550E
• CC3551E
• CC3501ET
• CC3551ET

CC35xx Launchpad:

• LP_EM_CC35X1
• LP_EM_CC35X1ET

Limitations

• The Out-of-box experience of “Activation and Initial Programming” as described in the “Quick Start Guide” will only work on Rev-A of the LP-EM-CC35X1 Launchpad (it is not compatible with older revisions of the Launchpad, such as Rev E4, Rev E3 and Rev E2).

• Default INI file that is compiled with examples is for dual-band devices (CC355x), for single-band devices please update the INI file with IsDeplexerPresent=0, and recompile

• PSRAM functionality is provided as Early Access (EA) support. PSRAM can currently be accessed using the “XMEM” driver APIs. SW stack and heap cannot be placed on PSRAM in this release

• When configuring AP role to support 8 STAs, it is recommended to configure LwIP to allow 8 TCP streams to ensure optimal performance. This will require re-compiling LwIP library

Fixed Issues

ID	Summary
OSPREY_MX-1607	Cannot connect to hidden AP on a DFS channel
OSPREY_MX-1520	SW does not support configuring external slow-clock

Known Issues

ID	Summary
OSPREY_MX-1818	[COEX] some degraded traffic and scan performance observed in External Coexistence mode (Wi-Fi + External device)
OSPREY_MX-1796	BLE advertise power consumption is higher than expected
OSPREY_MX-1795	BLE idle connect power consumption is higher than expected
OSPREY_MX-1744	Adding Wi-Fi profile will fail with protected storage enabled
OSPREY_MX-1626	[IOP AP] iphone 17 Can't Authenticate with CC35XX in AP Role with WPA3 Security
OSPREY_MX-1519	[BLE] instability observed in some multiple-connection BLE scenarios
OSPREY_MX-1518	[COEX] some degraded traffic and scan performance observed in Coexistence mode (Wi-Fi + BLE)
OSPREY_MX-1447	[BLE]: BLE Connection timeout occurred sometimes during heavy BLE traffic
OSPREY_MX-1287	Power consumption currently higher than expected due to missing software optimization
OSPREY_MX-725	TCP bidirectional traffic is sometimes unbalanced between Rx and Tx

Technical Support and Product Updates

• www.ti.com
• www.ti.com/tool/LP-EM-CC35X1
• Drivers Release Notes
• Software License
• Software Manifest