Important information on CC3000

Description:

SP-1.5 Release of CC3000 Host Driver and CC3000 chipset.

Upcoming changes:

Enhancements to CC3000 Host Driver will include support for big endian processors and multiple byte alignment processors

Enhancements to CC3000 Host Driver will include protection of NVMEM from misuse. Current version does not include protections and caution must be taken when considering to change NVMEM content.

In current implementation of CC3000 host driver there is no way for application to figure out if all the data that was admited for transmission was transmitted.This information may be valueable when a mode of operation of CC3000 is On->Send Data -> Off at the stage where after sending data the application needs to shut down a device and has no indication when this can be done. This feature will be added to the upcoming releases while for now a static delay of 1 second may be used.

Introduction

CC3000 SP1.5 includes platform independent CC3000 Host Driver Code and example implementation of SPI driver for MSP430.
For additional information regarding the example implementation please refer to: CC3000 Basic Wi-Fi example application for MSP430
Please note that the current version of CC3000 host driver, which is 1.7.2.2 supports IAR 5.30.4 and CCS v5 IDE.
CC3000 Host Driver Package Content
This section describes the content of the Host Driver package:

CC3000 Host Driver includes:

- Platform independent CC3000 Host Driver Code: Download
- Example implementation of SPI driver for MSP430 : Download - Basic Wi-Fi Application

CC3000 Features

Table 1: Host driver features Supported

Feature	Description
API	Fully supports CC3000 API's - for more details please refer to: programmers guide
BSD socket	Compliant API for application development
little endian	Supports little-endian MCUs
SPI implementation	SPI implementation example for the MSP430 FRAM (MSP-EXP430FR5739)platform
memory requirements	As low as 6KB code size and 4KB data (RAM) size

Table 2: CC3000 Wi-Fi features overview

Feature	Description
Wi-Fi	Wi-Fi optimized for easy use with microcontroller applications (IEEE802.11b/g)
network stack	Embedded IPv4 Network stack
DHCP/DNS	DHCP/DNS Client/ARP/ICMP integrated
socket	Up to 4 concurrent open sockets
Wi-Fi b/g	Wi-Fi b/g band support
Security	Open/WEP/WPA/WPA 2 Personal support
Select working channel	Channels 1-13 supported
Profiles	Connection profile management
Preferred connection	Possible to automatically connect to preferred networks. The list of preferred networks is configurable.
Fast reconnect	Fast reconnection to specific Access Point
FirstTime Configuration	For easy first connection to Access Point - for more details please refer to: CC3000 First Time Configuration Guide
SPI	SPI host insterface

Known Issues

Headline	Scan doesn't stop after disabling "Auto Start" in configuration policy when no suitable profile was detected
Internal numbering	MCS00083108
Description/Scenario	If the Auto Start was configured prior to disable of scans, and no profile found, CC3000 will stay in scanning state.

Headline	Scan fails to start
Internal numbering	MCS00094185
Description/Scenario	Scan doesn't start when "GetScanResults" API command is invoked after reset without previous connection attempts.

Headline	Static IP is not correctly displayed after reconfiguration
Internal numbering	MCS00094102
Description/Scenario	If the device is configured to use static IP, and connected to the IP, and the IP address is re-configured, the API command NetappIPconfig will return incorrect IP address.

Headline	"Packets Sent" in ping report is incorrect
Internal numbering	MCS00089990
Description/Scenario	"Packets Sent" in ping report is incorrect: it counts both responses and requests.

Headline	"Connected Async Event" arise prior to completion of connection process when using WPA2 security
Internal numbering	MCS00091525
Description/Scenario	"Connected Async Event" arise prior to completing 4-way handshake during WPA2 connection.

Headline	Get Sockopt API may return an incorrect value
Internal numbering	MCS00090753
Description/Scenario	Get_sockopt API function returns an incorrect value of socket timeout and blocking state when the socket is closed.

Headline	Adding WPA profile causes disconnect
Internal numbering	MCS00086828
Description/Scenario	Addition of WPA profile, during the connected state of CC3000, causes disconnect

Headline	Ping report Event reports incorrect number of responses sometimes
Internal numbering	MCS00090151
Description/Scenario	Ping report Event reports incorrect number of responses received when some specific ping packet payload is used

Headline	Fail to connect to AP with low RSSI
Internal numbering	MCS00084892
Description/Scenario	Connection is not initiated to AP with RSSI below -75dBm

Known Interoperability Issues

Headline	IOP Connection: Linksys WRT400N
Internal numbering	MCS00086252
Description/Scenario	Not able to connect to an AP that is not supporting all basic rates such as Linksys WRT400N

Headline	Low throughput with Linksys WRT300N AP.
Internal numbering	MCS00086165
Description/Scenario	TCP Tx jiggling 0.1Mbps-3.3Mbps instead of stable 3.3Mbps throughput, when testing with Linksys WRT300N AP.

Headline	WEP connection problem with TL-WR740N TP-LINK router
Internal numbering	MCS00105533
Description/Scenario	Creating secured connection with the TP LINK wireless router of model TL-WR740N from CC3000, while security type is WEP will fail.

Headline	Low TCP throughput with Linksys 350N when operating with CTS protection
Internal numbering	MCS00086192
Description/Scenario	TCP throughput is 0.5-0.9Mbps less than expected when operating with CTS protection with Linksys 350N

Headline	Low TCP throughput with Linksys 300N.
Internal numbering	MCS00086165
Description/Scenario	The TCP throughput is 0.1- 3.3Mbps when running TCP TX traffic instead of stable 3.3Mbps

Headline	Periodic connection failure due to no ACK on Assosiation request from CC3000 device with Cisco1250.
Internal numbering	MCS00083765
Description/Scenario	Periodic connection failure due to no ACK on Assosiation request from CC3000 device with Cisco1250.