CHANGELOG.txt

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Broadcom WICED Software Development Kit - CHANGELOG
=====================================================================

Changes for WICED-SDK 3.3.0
* Add support for BCM43909

Changes for WICED-SDK 3.1.2 : 01 December 2014
-----------------------------------------------------------
* Applications
  * Improved BT audio demo application
  * Greatly expanded Wi-Fi Direct support in test.console (referenced as P2P)
  * Added websocket_client snippet application
  * Added new NFC snippet apps: 
    * snip.nfc.config_token_client
    * snip.nfc.config_token_server
    * snip.nfc.tag_reader
    * snip.nfc.tag_writer 
* Libraries, Protocols, Drivers
  * Apple HomeKit
    * Compatible with HAT version 1.0 (66)
    * Added API to add/remove accessories/services/characteristics on the fly 
    * Added Garage door opener service, fan service, thermostat service
    * Redesigned API for building accessory database
    * Added developer header file that exposes internal API required for development or testing by use
      ( will get populated with subsequent releases )
    * HomeKit will now close socket connection if it encounters unencrypted data during encrypted session
    * Added Auth data and remote fields
    * Added update list in callback wiced_homekit_actions_on_remote_value_update, to indicate which characteristic was changed
    * Added Characteristic and Accessory ID parameter to identify callback
    * Reduced size of characteristic structure
    * LIMITATIONS: Apple HomeKit now supports ThreadX-NetX_Duo *ONLY*. Support for other RTOS/Network Stack
                   combinations will be added in subsequent releases
  * Updated all library makefiles to start their NAME with "Lib_"
  * Added new linked_list utility
  * Added NFC driver ( currently only supported in BCM943341WCD1)
  * HTTP server improvements
  * Websocket protocol improvements
* Platforms & WICED Wi-Fi Driver (WWD)
  * Added MFi support to BCM943341WCD1
  * Improved 43341 firmware image
  * Improved 43362 firmware image (5.90.230.12)
  * Improved support for UART4 for the BCM94390WCD2
  * Improved I2C driver for STM32F2xx and STM32F4xx
  * Split wiced_join_ap() into two functions to allow joining AP which is not in the DCT
  * Fixed internal scan_result_handler() to avoid corruption when in the presence of more than 100 APs
  * Added const to stdio_config variable
  * Fixed SAM4S DCT
* WICED API
  * NetX and NetX_Duo now send ARP probe after obtaining IP address via DHCP
  * New wwd_wifi_get_noise() API
  * Updated cryptographic functions to use const function arguments where applicable
  * Extensive Wi-Fi Direct update in BESL
  * Added support for third P2P interface (Wi-Fi Direct)
  * Changed wiced_ip_handle[] to use pointers to reduce memory usage for unused interfaces.
  * Added wiced_rtos_delay_microseconds() API
* WICED Toolchain
  * Stopped GCC from assuming C89 for non-pedantic files
  * Fixed map file parser
  * New OSX toolchain
  * Changed default optimization setting from -O3 to -Os
* WICED Application Framework (WAF)
  * Added support for SAM4S OTA 

Changes for WICED-SDK 3.1.1 : 13 October 2014
-----------------------------------------------------------
* Applications
  * Added applications available in WICED-SDK-2.4.1 including:
    * ap_clients_rssi
    * crypto
    * dct_read_wriet
    * packet_filter
    * security_types
    * stack_overflow
    * tcp_client_powersave
    * thread_monitor
    * wps_enrollee
    * wps_registrar
  * Added new example applications:
    * spi_slave
* Libraries & Protocols
  * Apple HomeKit
    * Compatible with HAT version 1.0 (50)
    * Updated HomeKit Accessory API ( currently only supporting Lightbulb accessory )
    * Enabled support up to 16 controllers
    * Added options for users to select Bonjour or Gedday
    * Enabled -debug build
    * LIMITATIONS: Apple HomeKit now supports ThreadX-NetX_Duo *ONLY*. Support for other RTOS/Network Stack
                   combinations will be added in subsequent releases
  * Apple AirPlay
    * Improved streaming reliability
    * Updated AirPlay demo application
      * Expanded application to cover all AirPlay API
      * Added support Over-the-Air (OTA) upgrade
      * Audio playback progress is now updated on the terminal every second
      * Added new console commands
  * Broadcom Embedded Supplicant Library (BESL)
    * BESL debug library now output additional debug prints
  * Platforms & WICED Wi-Fi Driver (WWD)
    * BCM4390
      * BCM4390 now handles TCP re-transmission properly
      * Watchdog is now supported
      * Significantly reduced inter-beacon sleep current to 140uA (Apps + WLAN)
      * Updated WLAN firmware to version 6.38.15.5
        * Low power improvements
        * Suppressed WLAN debug output on UART4
        * Fixed channel 4 sensitivity issues
    * BCM43362
      * Updated NVRAM images
      * Updated WLAN firmware version to 5.90.230.10
        * Added support for ETSI EN 300 328 version 1.8.1
        * Improved support for Wi-Fi Direct
    * WICED SoftAP
      * Set multicast transmission rate to 11 Mbps 
      * Set block ack window size to 2
    * Added new WWD API
      * wwd_wifi_get_rate()
      * wwd_wifi_set_mcs_rate() 
      * wwd_wifi_set_legacy_rate()
      * wwd_wifi_disable_11n_support()
* WICED API
  * wiced_hostname_lookup() for LwIP now checks if host name is a string representation of IPv4 address
* WICED Application Framework (WAF)
  * Added OTA upgrade with multi-application support (BETA). See <WICED-SDK>/apps/snip/ota_fr/ota_fr.c for details
    * LIMITATIONS: OTA upgrade is supported for STM32F2xx, STM32F4xx and BCM94390 platforms *ONLY*

Changes for WICED-SDK 3.1.0 : 03 September 2014 
-----------------------------------------------------------
* Added support for Apple HomeKit Beta 3 (compatible with HAT version 1.0 (42) )
* Updated 4390A1 WLAN firmware to revision 6.38.15.1
    * This version is ready to pass regulatory testing properly
* Consolidated duplicate parts of crypto functions to increase speed and reduce size
* Added new toolchain (GCC 4.9.0) that supports hardware floating point on the Cortex-M4 
* Added new crypto suites: ChaCha, Curve25519, Ed25519, Poly1305, SHA512
* Modified API to fix 32 character SSID bug. Functions affected:
    * wwd_wifi_ap_init
    * wiced_start_ap
    * wwd_wifi_join
* Updated NVRAM files for 43362 platforms
* Modified FreeRTOS thread creation to yield to higher priority threads
* Fixed NoOS semaphore API to be atomic
* Added beta support for TLS 1.2
* Updated wiced_ssid_t structure to follow WICED naming conventions
* New 43362 WLAN firmware that adds support for reading arbitrary length of random values
* Fix SDIO bus credit update when host_buffer_get() fails
* Added wiced_tcp_unregister_callbacks() and wiced_udp_unregister_callbacks() for NetX_Duo
* Added wiced_tcp_unregister_callbacks() for LwIP
* Reduced LwIP ARP queue to 5
* Added status variable to wiced_scan_result_callback_t to indicate the reason a scan completed
* LwIP network_tcp_send_packet() now calls netconn_write() with NETCONN_DONTBLOCK
* Modified API to accept a wiced_interface_t . Functions affected:
    * wwd_wifi_join_specific()
    * wwd_wifi_leave()
    * wwd_wifi_get_mac_address()
    * wwd_wifi_scan() to accept interface 
* Added NX_ARP_DISABLE_AUTO_ARP_ENTRY for both NetX and NetX_Duo to conserve ARP cache entries
* Added websocket library
* Modified AP interface to transmit multicast packets at 11Mbps instead of 1Mbps
* Added API to set AMPDU parameters: wwd_wifi_set_ampdu_parameters()
* Set the AMPDU parameters in wwd_management_wifi_on(). Reduced available and advertised sizes
* Fixed DHCP issue for NetX_Duo with some APs
* Increased ARP cache size from 3 to 6
* Added optional SDIO bus API for platforms that mask the SDIO iterrupt: host_platform_unmask_sdio_interrupt()
* Added capability to NetX and NetX_Duo to limit the TX and RX queues for TCP sockets    
* Upgraded HTTP_server library to allow for multiple concurrent, persistent connections
* Added wiced_tcp_server_xxxxx() API to simplify creation of a multi-socket TCP server

Changes for WICED-SDK 3.0.1 : 15 April 2014
-----------------------------------------------------------
* Replaced WLAN firmware with version 5.90.230.3
  * SoftAP now responds to authentication request from a re-joining client
  * NOTE: 4-second Wi-Fi sleep time is not supported
* SoftAP on WWD SPI interface now allows clients to join properly
* BCM4390 now supports GPIO interrupts, I2C peripheral, and UART4 
* BCM4390 pin PA00 and PA01 now work as GPIO pins
* TLS now allows user to validate the peer CN
* FreeRTOS now supports forcing thread awake
* FreeRTOS bug fix that prevents a deadlock when using malloc() or free()
* FreeRTOS wiced_rtos_create_thread() now correctly deals with priorities higher than the maximum
* NetX-Duo wiced_tcp_listen() now works for both STA and SoftAP sockets
* NoNS wwd_thread_poll_all() now only sends and receives once to prevent overwriting previously read packets
* wiced_assert() is now wrapped in do {} while(0)
* wiced_deinit() now prevents multiple de-initialization
* canned_send snippet application now uses less memory
* Documentation update for wiced_rtos_thread_join() and malloc_error()
* OSX version of OpenOCD now works properly


Changes for WICED-SDK-3.0.0 : 7 March 2014
-----------------------------------------------------------
WICED-SDK-3.0.0 has changed considerably since the previous 2.4.1 release.
The accompanying README provides a more detailed summary of the supported 
features and known limitations for this release.

The following is a brief summary of the major changes:
* Support for various Broadcom Wi-Fi & combo chips
  * BCM43362 Wi-Fi SoC
  * BCM4390 Integrated Apps + Wi-Fi SoC
  * BCM43341 Wi-Fi + Bluetooth combo SoC
* Platforms
  * BCM94390WCD3 platform (BCM4390 Integrated Apps + Wi-Fi SoC)
  * BCM943341WCD1 platform (STM32F417 MCU + BCM43341 WLAN/BT combos)
  * BCM943362WCD4_LPCX1769 platform (LPC1769 MCU + BCM943362WCD4 module)
  * BCM9WCDAUDIO platform
  * Common Platform components have been re-architected
  * All platform specific implementation including pin mapping, configuration, 
    peripheral definitions etc now can be found in <WICED-SDK>/platforms directory
* RTOS & Network Stack
  * Updated ThreadX to version 5.6
  * Updated NetX to version 5.5 service pack 1
  * Updated NetX-Duo to version 5.7 service pack 1
  * Updated FreeRTOS to version 7.5.2
* Libraries & Protocols
  * Broadcom Embedded Security Library (BESL)
    * The user provided root CA certificates can now be used to verify intermediate CA certificates 
      and not just the top root CA certificate
  * WICED SmartBridge
    * SmartBridge now supports Passkey entry
    * SmartBridge now supports both BCM20702 and BCM43341
  * Apple AirPlay
  * Apple Wireless Accessory Configuration (WAC) protocol
  * Bluetooth Audio
  * WicedFS : Read-only Serial Flash File System
* WICED API
  * WICED now provides a simplified approach for defining and mapping RTOS-aware 
    interrupt handlers
  * Removed TLS from Config web server - uses WPA2 with passphrase 12345678  
  * Expanded WICED error codes
  * Harmonised directory and file names across the SDK
* WICED Wi-Fi Driver (WWD)
  * WWD API names now starts with 'wwd' prefix
* WICED Application Framework (WAF)
  * Bootloader updated to provide support for loading ELF files from an external serial flash file system
  * Resources can now be located in an external serial flash file system
  * WLAN firmware moved into resources to allow it to be located in external serial flash
  * DCT can now be located in external serial flash


Changes for WICED-SDK-2.4.1 : 3 March 2014
-----------------------------------------------------------
* ThreadX host_rtos_join_thread() now checks for thread validity before waiting for tx_thread_state to change
* Fixed definition of END_HTTP_PAGE_DATABASE
* NetX_Duo wiced_tcp_accept() now ensures that the accept window stays open indefinitely
* Improved stability of WICED UART API for all ST platforms
* MCU powersave in bootloader is now disabled by default
* Updated WLAN firmware to version 5.90.230.7
* Wi-Fi Direct now allows changing of Group Owner intent via console application
* Added support for receiving 802.1Q VLAN-tagged ethernet frames (NetX only)
* Corrected mapping for IP precedence bits
* Added 'get_associated_client_list' command to console application
* Changed softAP multicast transmission rate to 11Mbps
* Improved AMPDU settings for 43362a2 WLAN chip
* wiced_init() now prints WLAN firmware version and MAC address
* Improved MCU powersave timing accuracy of SAM4S platform
* SAM4S wiced_gpio_input_irq_enable() now sets the edge trigger correctly
* SmartBridge now returns all unfiltered advertisement reports properly
* Added wiced_bt_smartbridge_set_transmit_power() API to SmartBridge
* Added capability to independently initialize the WICED core and WLAN connectivity for power optimizations
* Fixed TLS certificate verification in BESL
* Updated buildsystem to allow optimizations for components while doing a debug build
* LwIP wiced_tcp_connect() now connects successfully without socket re-initialization


Changes for WICED-SDK-2.4.0 : 27 Nov 2013
-----------------------------------------------------------
* Libraries & Protocols
  * Added Bluetooth SmartBridge for Wi-Fi <-> Bluetooth bridging
  * BESL (Broadcom Embedded Supplicant Library)
    * Added support for WPS Registrar
    * Added support for Wi-Fi Direct
    * Added support for multiple handshake messages in a single TLS record
    * Improved management of TLS record fragmentation
  * DHCP server 
    * Now caches IP addresses
    * Fix to generate the web proxy auto discovery URL from the DHCP server's IP address
  * DHCP client
    * LwIP updated to correctly cleanup if DHCP resolution fails
    * NetX dhcp_client_deinit() fix
  * HTTP client
    * SIMPLE_GET_REQUEST now includes a host header field
  * Bluetooth RFCOMM
    * Fixed execution of callback in incorrect thread
    * Long incoming datastream is now received in one packet
  * iAP : Fix to enable WEP
  * ThreadX : Stopped enabling the systick in _tx_initialize_low_level as it can lead 
    to a race condition if initialisation takes too long. The systick is turned on by 
    ThreadX later in initialisation
  * Xively
    * Updated to the current Xively API
    * Now supports HTTPS
* Platforms
  * SPI : Implemented wiced_spi_deinit() for all platforms
  * Improved MCU powersave mechanism for STM32F2xx platforms
  * Replaced Atmel SAM4S drivers (BCM943362WCD8 platform) with ASF (Atmel Software Framework)
    * Added support for SAM4S powersave (WAIT MODE)
  * Harmonized NVRAM parameters across all BCM43362 platforms
* WICED API
  * wiced_time API expanded to provide millisecond time resolution
  * wiced_packet_get_data() now resets output parameters when packet data length equals zero
  * wiced_tls_receive_packet() now releases empty packets after processing
  * wiced_get_packet_filter_list() now allocates sufficient buffer length
  * The config mode AP now uses WPA2 security with password 12345678. TLS has been removed.
  * The wiced_scan_result_t structure now includes a flag to indicate reception of an off-channel scan result
    (rather than returning the RSSI of the result as +200dBm)
  * Added a new library function to print scan results
  * Scan API now correctly reports max data rate for APs  
  * wiced_join_ap() now saves the PMK when it calls wiced_join_specific()
  * Fix to correct occasional failure to join an AP after a link up event
  * Fix to avoid memory corruption if host_buffer_get() fails
  * Fix to wiced_udp_send() to correctly clean up the socket if packet send fails
  * Fix to stop wiced_wifi_leave() reporting TIMEOUT after Wi-Fi powersave is disabled   
  * Added an option to disable transmission of AMPDUs for 11n rates
  * Added an option to make the softAP SSID hidden
* Added the following new applications
  * demo
    * bt_smartbridge
  * snip
    * ap_clients_rssi
    * bt_rfcomm
    * p2p
    * security_types
    * service_discovery
    * sntp_get_time
    * stdio
    * tcp_client_powersave
    * tcp_server
    * tcp_server_async
    * wps_enrollee
    * wps_registrar
  * test
    * bt_smartbridge_console
    * bt_smartbridge_mfg_test
    * console (Iperf is now included in the generic console application)
* WICED Wi-Fi Driver
  * SDIO bus reliability improvements
* BCM43362 Firmware updated to 5.90.230.3
  * Concurrent softAP-STA improvements
  * Provides support for P2P (Wi-Fi Direct)
  * Throughput & stability improvements
* Build system 
  * Added Factory Programming capability (see WICED-AN800-R Factory Programming Application Note) 
  * Fixed Makefile dependencies for generated .c_opts, .cpp_opts, and .ar_opts files
  * Native IAR support
    * Limitations: OTA upgrade works for STM32F2xx platform only (support for other platforms TBD)


Changes for WICED-SDK-2.3.1 : 28 May 2013
--------------------------------------------------
* Known Issues that have been fixed :
  * WLAN sleep clock input is now explicitly selected by a directive in the <WICED-SDK>/include/platform<PLATFORM_NAME>/platform.h
  * The PLATFORM_APP_START_SECTOR definitions for all STM32 platforms have been corrected
  * Fix to cleanup the WPS thread when a semaphore argument is provided to besl_wps_enrollee()
  * WICED Wi-Fi clients can now join an AP using WPA2 with EAPOL v1.0
  * FreeRTOS now forces threads awake that are waiting in a TCP accept when using the wiced_rtos_thread_force_awake() API 
  * Fixed: Uninitalised nx_ip_driver_packet variable causes wiced_netx_driver_entry() function to attempt to release an invalid packet pointer when the link is down
  * Fixed marginal hold-time on STM32-WLAN SPI interface
  * Removed WPRINT_LIB_INFO in bt_smart_gatt.c that was causing a Hard Fault due to insufficient stack space
  * Default Japan country code now provides support for 802.11n
  * PWM API now outputs the correct frequency (was 2 x frequency)
  * #define LWIP_NUM_PACKET_BUFFERS_IN_POOL is now picked up during the build process (when using LwIP)
  * Changed DEFAULT_NUMBER_OF_SYSTEM_MONITORS to MAXIMUM_NUMBER_OF_SYSTEM_MONITORS and enabled override outside system_monitor.c
  * TLS now correctly returns decrypted data when there is a partial record in the same packet
  * TLS library: Added support for generalised time and for certificates which do not have a version tag
  * SAM4S : STDIO UART pin config moved from sam4s_uart.c (MCU-specific) to platform.c (platform-specific)
  * Re-architected STM32F1xx-WLAN SDIO driver to address SDIO DMA overrun issue
  * Wi-Fi scan now notifies application via a semaphore when an error occurs
  * DHCP client now performs DHCP discovery after the device is re-associated with the wireless network
  * wiced_network_suspend() now does not stop DHCP client when the IP address has not been assigned 
  * STM32F1xx platform makefile now correctly overrides LwIP buffer pool sizes

     
Changes for WICED-SDK-2.3.0 : 29 April 2013
--------------------------------------------------
* RTOS & Network Stacks
  * ThreadX (source code changes are available for ThreadX licensees)
    * Changes to improve MCU power save functionality
  * NetX/NetX Duo (source code changes are available for NetX/NetX Duo licensees)
    * Added support for suspension/resumption of network stack timers to improve MCU power save functionality
  * LwIP
    * Added support for network stack timer suspension/resumption to improve MCU power save functionality
    * Separated packet buffers into individual transmit and receive packet pools to improve throughput and stability 
* Platforms
  * Added Atmel SAM4S Support (Platform:BCM943362WCD8)
  * Added WICED+ Platform Support (Platform:BCM9WCDPLUS114)
  * Added I2C driver (STM32F2xx platform, others TBD)
  * Added Real-Time Clock (RTC) support (STM32F2xx platform, others TBD)
  * Replaced Platform:BCM943362WCD5 (STM32F405) with Platform:BCM943362WCD6 (STM32F415)
  * Adjusted interrupt priorities for STM32 platforms
  * Fixed DCT write function for STM32F1xx platform 
  * Fixed MCU powersave time loss issue for STM32F2xx platform
  * Added a new platform initialization function, init_memory(), to permit platform specific memory 
    initialization before globals are set, BSS section is cleared and C++ constructors are called.
  * Moved all schematics and board reference material to the DOC/Schematics directory    
* Libraries & Protocols
  * Added Bluetooth SmartBridge API
  * Added support for Apple MFi iAP (separate iAP library must be obtained from Apple)
  * Added beta support for Broadcom Wi-Fi Easy Setup - Cooee(TM)
  * HTTP server improvements
  * HTTP client improvements; added query argument to wiced_http_get() and wiced_https_get()
  * Gedday (Broadcom low-footprint mDNS library) improvements; enabled TXT records, fixes for potential memory leaks
  * Improved BESL security supplicant library. BESL now includes both TLS and WPS and is RTOS and Network stack independent
    * SMTP library updated to use BESL improvements
    * aes_context structure renamed to aes_context_t and moved to <WICED-SDK>/Wiced/Security/besl/crypto/crypto_structures.h  
* Applications
  * ota_upgrade example app improvements: web server, browser compatibility, flash writing
  * Added the following applications
    * demo/bt_smartbridge (Bluetooth SmartBridge demo application)
    * snip/packet filter
    * snip/network keep alive 
    * snip/stack_overflow
    * snip/ping powersave
    * snip/easy setup
    * wwd/* (raw WICED Wi-Fi Driver example applications)
  * Modified the following applications
    * Renamed snip/ping to snip/ping_webserver
  * Updated tx_start manufacturing test scripts in <WICED-SDK>/Apps/mfg_test/scripts    
* WICED API
  * Improved wiced_rtos_set_semaphore() API (FreeRTOS only)
  * Improved wiced_wifi_set_listen_interval() API
  * Renamed wiced_wifi_powersave_enable() to wiced_wifi_powersave_enable_with_throughput()
  * Changed wiced_wifi_powersave_enable() to use legacy 802.11 Powersave Poll
  * Updated link status API to use callback registration
    * wiced_link_state_subscribe() changed to wiced_network_register_link_callback()
    * wiced_link_state_unsubscribe() changed to wiced_network_deregister_link_callback()
  * Added wiced_enable_powersave() & wiced_disable_powersave() convenience API
  * Added wiced_tls_deinit_context(), wiced_tls_reset_context()
  * Added wiced_wifi_get_associated_client_list()
  * Added wiced_wifi_get_ap_info()
  * Added network packet filter API functions
  * Added network keep alive API functions
  * Added write_ap_list_dct() to bootloader API
  * Added support for asynchronous TCP and UDP (NetX_Duo only) 
    * Accessed via new APIs: wiced_tcp_register_callbacks(), wiced_udp_register_callbacks()
  * Additions to wiced_defaults.h : WICED_DEFAULT_TCP_LISTEN_QUEUE_SIZE, WICED_ENABLE_MCU_RTC
  * Fixed intermittent failure when bringing up softAP
  * Resolved WPA, WPA2, WPA2/WPA scan and join issues with different combinations of AES and TKIP ciphers
  * Extensive additions to API documentation
* WICED Wi-Fi Driver
  * SDIO & SPI bus stability improvements
  * STM32F2xx SDIO & SPI bus interface is now interrupt driven (no longer polls) 
  * Added the following WWD API functions
    * wiced_wifi_set_channel()
    * wiced_wifi_enable_monitor_mode()
    * wiced_wifi_disable_monitor_mode()
    * API to manage temperature dutycycle
  * 43362 firmware updated to 5.90.230.1 
    * production : Added Passphrase-to-PMK IOCTL to speed up association time   
    * mfg test   : Added reset counters
  * Improved wiced_wifi_is_ready_to_transceive() event handling 
* Build system 
  * Turned on gcc-compiler pedantic checking
  * Changes to support multiple toolchains (prep for native IAR support)
  * Updates to OpenOCD to correctly drive SRST
  * Improved C++ support
  * Improved IAR support
  * Cleaned up resource processing
* Documentation
  * Updates to all documentation to include the WICED logo
  * Updated WICED Powersave App Note to reflect power save changes
  * Added Application Note : WICED Wi-Fi Easy Setup - Overview
  * Added Application Note : WICED Wi-Fi Easy Setup - Cooee


Changes for WICED-SDK-2.2.1 : 11 February 2012
--------------------------------------------------
* Fixes to Gedday to improve stability and reduce memory usage
* Fixed http client mode infinite loop
* Fixed a TLS memset issue and added support for v1 TLS certs and generalised time format
* Fixed Wi-Fi scanning to report off-channel APs and 40MHz APs
* Fixed a platform issue that failed to correctly set the SPI clock frequency
* Fixed long join delay timeout if an invalid SSID or Passphrase is provided
* Enabled storage for WEP keys in the DCT along with WPA/WPA2
* Stability improvements to the Wi-Fi bus driver
* General powersave performance improvements including :
  * Added wiced_network_suspend() / wiced_network_resume() APIs
  * Refactored listen interval APIs 
* Provided a way to pass an external global define into the WICED build system
* Re-instated $(TOOLS_ROOT) into the build system 
* Renamed Bluetooth firmware image folder for compatibility with Windows XP   
* WICED API reference documentation updates
* Updated Powersave Application Note


Changes for WICED-SDK-2.2.0 : 14 December 2012
--------------------------------------------------
* Added the following documents into the WICED-SDK/Doc directory
  * WICED SDK Quickstart Guide (WICED-QSG201-R)
  * WICED Evaluation Board user Guide (WICED-EUM200-R)
  * Manufacturing Test User Guide (WICED-MFG200-R)
  * Powersave Application Note (WICED-AN101-R)
  * WICED Application Framework Overview
  * Wiced SDK Software Stack Diagram
* Added support for FreeRTOS and LwIP
* Added toolchain support to generate and write factory reset flash image
* Added MCU & Wi-Fi powersave and Wi-Fi poweroff capability
* Platform additions
  * Added support for STM32F1xx (BCM943362WCD2 platform)
  * Added support for STM32F4xx (BCM943362WCD5 platform)
  * Added support for Freescale Kinetis K60 (TWRK60D100M platform; peripheral API TBD)
  * Added BCMUSI11_BT1 platform to support Bluetooth expansion board
* Added system monitor thread to manage system integrity and lockups
* DCT additions/changes
  * Added DCT API functions
  * Added TLS public certificate and private key into DCT 
  * Added option to store 802.11 MAC address in the DCT   
* Added generic crypto API (in wiced_security.h) to expose crypto functions for general use
* Added asynchronous callback API for link up/down notification
* Example Apps are now segregated into categories in separate directories
* Added multiple snippet applications in the WICED-SDK/Apps/snip directory
* Added DCT backup to factory reset image in serial flash
* Added http client streaming API
* Added wiced_ip_address_t structure 
* Added threadsafe malloc to FreeRTOS
* Added wiced_wifi_get_channel() API
* Added WICED_COUNTRY_WORLD_WIDE_XX country code
* Added SNTP API to auto sync time: sntp_start_auto_time_sync() & sntp_stop_auto_time_sync()
* Refactored and consolidated the platform API to simplify usage of peripherals
* Improved performance of Wi-Fi roaming
* Improved DNS client operation
* Improved DHCP server operation & changed IP address range to 192.168.0.x
* Fixed WPS authentication failure
* Fixed packet leak in NetX/NetXDuo network link driver
* Moved Gedday into daemon directory
* Fixed max passphrase length to be 64 characters
* Fixed invalid TIMER_TASK_PRIORITY 
* TLS optimisation to halve the hash calculation time


Changes for WICED-SDK-2.1.0 : 5 October 2012
--------------------------------------------
* Added support for BCM43362 SPI interface
* Added support for NetX TCP/IP network stack (in addition to NetXDuo)
* Removed Apple Bonjour implementation, Bonjour is now available directly from Apple
* Added Gedday : Broadcom Zeroconf Network Discovery Library
* Fixes for all WICED-SDK-2.0 KNOWN ISSUES


Changes for WICED-SDK-2.0 : 7 September 2012
--------------------------------------------
WICED-SDK-2.0 has changed considerably since the previous 1.2 release.
The changeset is too large to capture in detail. The accompanying
README provides a summary of the changes.


Changes for WICED-SDK-1.3 : 14 September 2012
---------------------------------------------
Known Issues
  * Fixed memory leak due to invalid WEP key
  * Fixed USART overrun which may cause the system to lockup
  * read_usart_nonblocking() now returns a char to avoid possible USART data corruption
  * Fixed incorrect handling of 'link down' events
  * Increased WLAN bus timeout during initialisation
  * Updated BCM43362 mfg_test firmware to address possible OTP write issues at manufacturing 
Other changes
* Added Iperf command into the console application
* Removed endian swapping for IP addresses in NetX related code
* Added WEP support to join command in the console application
* Updated BCM43362 mfg firmware
* Updated BCM43362 release firmware
* Changed BCM43362 otpimagesize=76 (which is the correct size)
* Added SPI driver for BCM43362 
* BCM43362 SDIO bus driver stability improvements
* Changed ThreadX tick to 1ms
* Added thread create command to console application
* Made malloc thread safe for ThreadX/NetX
* Removed Atmel platforms


Changes for WICED-SDK-1.2 : 2 March 2012
--------------------------------------------
* Power saving improvements to accommodate STM32 stop-mode + Wi-Fi powersave
* WICED EVB driver is now WHQL certified for WinXP & Win7
* Updates to OpenOCD and a number of other toolchain components
* Updated FreeRTOS to version 7.1.0
* Updated ThreadX/NetX to versions 5.5/5.4
* Changed ThreadX and FreeRTOS start stacks to 600 bytes in all applications to prevent stack overflows in interrupt handlers
* Added support for C++
* Added WLC_E_ROAM event to the join event list to enable an app to detect roaming so it can notify the network stack
* Added API support for IPv6 with NetXDuo
* Added APSTA mode support for BCM43362
* Added interface to set beacon listen interval for 43362a2
* Added IAR support for BCM94319WICED5 platform
* Added BCM943362WCD2 platform : STM32F103 + BCM43362 Chip-on-Board
* Added BCM943362WCD3 platform : STM32F205 + BCM43362 Chip-on-Board
* Added BCM943362WCD4 platform : STM32F205 + BCM43362 USI SiP
* Removed BCM943362WCD1 platform


Changes for WICED-SDK-1.1 : 1 November 2011
--------------------------------------------
Features
  * Added WPS Enrollee (beta-release)
  * Added antenna diversity support to the BCM4319 firmware image
  * Added support for Atmel AT91SAM3S16C processor - beta feature.
  * Added support for BCM943362a1 Wi-Fi chip
Platforms
  * Added BCM94319WICED2 platform (which has diversity options for two antennae)
  * Added BCM94319WICED3 platform (similar to WICED1 except with separated internal/external SPI)
  * Added BCM94319WICED5 platform (demonstrates usage of STM32F2xx - currently SDIO only)
  * Added BCM943362WCD1 platform (demonstrates usage of BCM943362a1 - currently SDIO only)
  * Added Atmel SAM3S_EK platform for the SAM3S16C (currently SDIO only)
  * Added Inventek ISM4319_M3_L44 platform (similar to BCM94319WICED1 but with Ampak 4319 SiP)
  * Added Murata SN8200 platform (similar to BCM943362WCD1) - alpha release
  * Expansion platform (previously known as Canary) has been rolled into the respective base platform 
  * Increased code sharing among similar platforms using Platform/common directory
API Changes & Fixes
  * Added API function wiced_wifi_manage_custom_ie() to allow users to add or delete a custom IE  
  * Added API function wiced_wifi_select_antenna() 
  * Fixed scanning code to report correct AP channel number
Example Applications
  * appliance configuration : new application to demonstrate configuration of a device using AP/client mode, DHCPS, DNS, WPS, webserver (FreeRTOS/LwIP only)  
  * web server application : added UART-buttons web page, added WPS example, improved uploading functionality
  * sensor application : added DNS server, any text may now be entered into the browser URL
  * console application : added join_wps command
  * ping example application : added WEP example code
  * mfg_test application : removed, now available as a separate manufacturing test download
Tools, Build System, RTOS, IP Stack
  * Added detailed instructions for importing ThreadX-5.4 & NetX-5.3
  * Cleared windows PATH environment variable to minimise the risk of existing installed tools breaking the WICED build process
  * Added UART tx/rx non-blocking read and break
  * OpenOCD updated to fix FreeRTOS thread awareness bug and to support STM32F2XX
  * Cleaned up the definition of SYSTICK and CPU_CLOCK_HZ
  * Re-arranged vector table and exception handler assembler files for BCM94319WICED1 
    to allow better compatibility with ThreadX
  * Modified host_rtos_create_thread() to support generic thread creation. Thread stack,
    stack size, and thread priority are now function arguments.
  * wiced_rtos.h must now define a number of macros and constants to inform WICED how to
    prioritize threads and how to allocate thread stacks
  * Updated GNU ARM toolchain based on gcc-4.6.1, binutils-2.21.1a, newlib-1.19.0, gdb-7.3.1, expat-2.0.1, gmp-5.0.2, mpc-0.9, mpfr-3.0.1
    Allows debugging of release builds, and reduces size of debug builds by fixing --gc-sections option 
  * Added IAR compiler support for FreeRTOS-LwIP builds 
  * Modified build and debug system to support different host microprocessors with
    different OpenOCD initialisation processes. Platforms must now define HOST_MICRO variable.


Changes for WICED-SDK-1.0 : 19 July 2011
----------------------------------------
* Host-WLAN DMA data transfers are now monitored using an interrupt
* Improved error checking of API calls
* Changed UART to be interrupt driven to reduce likelihood of dropped characters
* Removed API function wiced_wifi_ap_swap_channel()
* Added API function wiced_wifi_get_rssi()
* Added API function wiced_management_wifi_on() / _wifi_off() 
* API documentation improvements
* Added support for WPA & WPA2 security to AP mode
* Build system now handles directory names with spaces
* Added build instructions and patches for OpenOCD
* Added 'run' make target to reset and run the target platform
* canned_send application : stability improvements
* web server application : stability improvements
* mdns_listen application : now prints instance name as well as the service name
* console application : added
* mfg_test application : Fixed memory leak, updated mfg firmware image to 4.218.116.43 
* Updated BCM4319 firmware to ROMTERM2 v4.219.77.9
* Updated WICED EVB serial port driver to FTDI 2.08.14
* OpenOCD fix to stop suspended threads from occasionally vanishing from the debugger   


Changes for WICED-SDK-0.6 : 17 June 2011
----------------------------------------
* Reformatted all Broadcom code to use a uniform coding style
* Memory usage reduction, including:
   - Better control of stack and packet buffer sizes
   - Remove printf() usage from WICED and TCP/IP threads to reduce stack requirement
   - Remove all printf() usage from the release build of the canned_send app to minimize RAM usage
   - FreeRTOS and LwIP now use malloc/free functions from libc (newlib)
* Moved Wi-Fi firmware image from header file to .c file.
* Standardised usage of stdint.h types and changed bool to wiced_bool_t to avoid clashes
* Wi-Fi firmware download improvements to minimise download time
* Added join failure reasons to wiced_wifi_is_ready_to_transceive() API
* Minimized delay on AP startup
* Changed RTOS semaphores from binary to counting
* Reduced Broadcom Wi-Fi device boot delay
* Added a 'throughput test' to the web_server app
* Added manufacturing test application (mfg_test)
* Added mdns listen application to demonstrate usage of multicast (FreeRTOS/LwIP only)
* Added support for AMPAK EVB and E225413 WICED module
* Removed support for STM3210E_Eval board
* A summary of flash and memory usage is now printed as part of the build process
* Added toolchain support for IAR Embedded Workbench (for ThreadX/NetX)
   - Many IAR code compatibility changes
   - Assembly code moved into separate GCC / IAR directories
* Build system speed and dependency improvements
* Fixed GDB debugging on Linux


Changes for WICED-SDK-0.5 : 17 May 2011
---------------------------------------
* Added APSTA mode
* Added 802.11 powersave mode
* Added WEP security
* Added API to set Tx RF power output
* Added sensor report application to demonstrate AP mode, DHCP server and low power
* Added support for multicast (beta) 
* STM32 sleep enabled during RTOS idle
* Changes to the way wiced_join() manages event handling
* Fixed occasional SDIO read timeout  
* Build system changes for improved error reporting and speed 
* Debugger now supports thread awareness and is considerably faster
* UART read fixed
* Fixed issue with WPA TKIP that prevents join
* Changed Scan and Ping app names to lowercase 


Changes for WICED-SDK-0.4 : 31 March 2011
-----------------------------------------
* wiced_wifi_join() API function is now non-blocking
* wiced_wifi_check_joined() API function has been added
* wiced_management_set_event_handler() API function now accepts an array of events per handler and allows overlapping event handlers
* wiced_wifi_scan() now uses a callback to communicate when a new scan record is available and added extended scanning options.