cc3000 simple socket demo (not using EthernetInterface) !

Dependencies:   NVIC_set_all_priorities cc3000_hostdriver_mbedsocket mbed

Info

Simple Socket demo application for the wireless CC3000 module.

Warning

The on-board Firmware must be updated to mbed enable the wireless module.
Goto the Component page to get the FirmwareUpdate tool (scroll down to the FirmwareUpdate topic).

Setup

Note

It is recommended to run an initial test WITHOUT security settings.

Changing network parameters in main.h

  • Setup a wireless router with a non-secure wireless connection using the wireless settings stored in main.h
    or set SSID to your wireless router SSID. For now, do not change USE_SMART_CONFIG and AP_KEY,
    only change AP_SECURITY to NONE.

// use smart config
#define USE_SMART_CONFIG 0

 // Default SSID Settings
#define AP_KEY       "test"
#define AP_SECURITY  NONE
#define SSID         "test"
  • By default, DHCP is used to obtain the IP address.
    When you want to use a fixed IP address, set IP_ALLOC_METHOD USE_STATIC_IP and enter your preferred values for STATIC_IP_OCT_x (device IP address) and STATIC_GW_OCT4 (4th number of your gateway IP address) .
    See the next chapter on how to use USE_SMART_CONFIG.

Setting up the Python script

  • Download Python 2.7 from http://www.python.org/download/
    Install it on a computer connected to the router you previously set up (wireless or wired).
  • Download this Python script to the Python2.7 folder (credit : Jim Carver from Avnet).
  • Compile the CC3000_Simple_Socket_demo code and save it to your board.

Running the application for the first time

  • Open a terminal program (eg: TeraTerm) and connect to your board (serial speed : 115200 baud).
  • Press the reset button on your board.
  • Following startup screen will appear :

Note

The version info can be different.
the dots in the MAC address will show your CC3000's real MAC address.

cc3000 simple socket demo.
MAC address + cc3000 info
 MAC address ..:..:..:..:..:..

 FTC        0
 PP_version 3.4
 SERV_PACK  1.11
 DRV_VER    7.14.24
 FW_VER     7.12.14
User's AP setup: SSID: "test", Password: "test", Security: 3

<0> Normal run. SmartConfig will
    start if no valid connection exists.
<1> Connect using fixed SSID without AP_KEY: test
<2> Connect using fixed SSID with AP_KEY: test
<8> Erase all stored profiles.
<9> SmartConfig.


  • For the initial test, select option <1> (Connect using fixed SSID without AP_KEY: ...).
  • If all goes well, the following screen is shown (the IP address can be different):
Attempting SSID Connection.
DHCP request
  Waiting for dhcp to be set.
  Waiting for dhcp to be set.
DHCP assigned IP Address = 192.168.1.100


  • On the computer where you installed Python2.7:
    • Make sure the connection between your computer and the wireless router is active.
    • Open a DOS prompt and go to the folder where Python2.7 is installed.
    • Type following command :
python wigo_test.py -a 192.168.0.101 -p 15000


Note

Don't forget to replace the IP address with the real IP address assigned by DHCP to the CC3000 module.

If a connection is established, the DOS window will show

-----------------
run tcp client
-----------------
connected to  remote ip=192.168.0.101 remote port=15000
Press ENTER ....


In return the controller board will send following info to the serial port:

Connection from: 192.168.1.101


When we press Enter in the DOS window, the controller board will send following info to the serial port:

Connection from: 192.168.0.10
Received: Hello Wi-Go
Sending the message to the server.


And the DOS window will show:

recv from :  data:  Hello Python


Using option <2>

  • In your wireless router, change the non-secure wireless connection to WEP, WPA or WPA2 and enter a security key.
  • In main.h, update AP_SECURITY and AP_KEY with the values you set in your wireless router.
    Valid values for AP_SECURITY are : NONE, WEP, WPA and WPA2
  • Recompile the code and save it to your board. Reconnect the terminal program and press reset on your board.
  • When the selection menu appears, choose option <2>.
    The communication sequence for option <2> is identical as described for option <1> but now a secure connection is used.

Using the application's options <0>, <8> and <9>

  • Options <0> (Normal run) and <9> (SmartConfig) are very similar.
    They both allow us to connect the CC3000 to another wireless network, without changing the pre-configured wireless settings stored in main.h.
    Option <0> will only start SmartConfig if no valid connection exists (First Time Config),
    but if the CC3000 was previously configured using SmartConfig, it will automatically connect using the stored wireless network profile.
  • Option <8> : As there are only 7 profile slots available, this option can be used to erase all stored profiles.
  • Option <9> allows the user to switch to another wireless connection.
    This connection is stored in one of the 7 profiles. More info on profile priorities is available here.


See TI's pages on how to use the SmartConfig tool:

Committer:
Kojto
Date:
Tue Jun 03 08:31:20 2014 +0000
Revision:
15:af967b9898f8
Parent:
5:12ea15b9c2f4
update mbed lib to r84

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 5:12ea15b9c2f4 1 /* mbed Microcontroller Library
Kojto 5:12ea15b9c2f4 2 * Copyright (c) 2006-2013 ARM Limited
Kojto 5:12ea15b9c2f4 3 *
Kojto 5:12ea15b9c2f4 4 * Licensed under the Apache License, Version 2.0 (the "License");
Kojto 5:12ea15b9c2f4 5 * you may not use this file except in compliance with the License.
Kojto 5:12ea15b9c2f4 6 * You may obtain a copy of the License at
Kojto 5:12ea15b9c2f4 7 *
Kojto 5:12ea15b9c2f4 8 * http://www.apache.org/licenses/LICENSE-2.0
Kojto 5:12ea15b9c2f4 9 *
Kojto 5:12ea15b9c2f4 10 * Unless required by applicable law or agreed to in writing, software
Kojto 5:12ea15b9c2f4 11 * distributed under the License is distributed on an "AS IS" BASIS,
Kojto 5:12ea15b9c2f4 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Kojto 5:12ea15b9c2f4 13 * See the License for the specific language governing permissions and
Kojto 5:12ea15b9c2f4 14 * limitations under the License.
Kojto 5:12ea15b9c2f4 15 */
Kojto 5:12ea15b9c2f4 16 #include "main.h"
Kojto 5:12ea15b9c2f4 17 #include "mbed.h"
Kojto 5:12ea15b9c2f4 18
Kojto 5:12ea15b9c2f4 19 #if (MY_BOARD == WIGO)
Kojto 5:12ea15b9c2f4 20
Kojto 5:12ea15b9c2f4 21 #include "NVIC_set_all_priorities.h"
Kojto 5:12ea15b9c2f4 22
Kojto 5:12ea15b9c2f4 23 /**
Kojto 5:12ea15b9c2f4 24 * \brief Wi-Go initialization
Kojto 5:12ea15b9c2f4 25 * \param none
Kojto 5:12ea15b9c2f4 26 * \return none
Kojto 5:12ea15b9c2f4 27 */
Kojto 5:12ea15b9c2f4 28 void init() {
Kojto 5:12ea15b9c2f4 29 DigitalOut PWR_EN1(PTB2);
Kojto 5:12ea15b9c2f4 30 DigitalOut PWR_EN2(PTB3);
Kojto 5:12ea15b9c2f4 31
Kojto 5:12ea15b9c2f4 32 // Wi-Go set current to 500mA since we're turning on the Wi-Fi
Kojto 5:12ea15b9c2f4 33 PWR_EN1 = 0;
Kojto 5:12ea15b9c2f4 34 PWR_EN2 = 1;
Kojto 5:12ea15b9c2f4 35
Kojto 5:12ea15b9c2f4 36 NVIC_set_all_irq_priorities(3);
Kojto 5:12ea15b9c2f4 37 NVIC_SetPriority(SPI0_IRQn, 0x0); // Wi-Fi SPI interrupt must be higher priority than SysTick
Kojto 5:12ea15b9c2f4 38 NVIC_SetPriority(PORTA_IRQn, 0x1);
Kojto 5:12ea15b9c2f4 39 NVIC_SetPriority(SysTick_IRQn, 0x2); // SysTick set to lower priority than Wi-Fi SPI bus interrupt
Kojto 5:12ea15b9c2f4 40 PORTA->PCR[16] |=PORT_PCR_ISF_MASK;
Kojto 5:12ea15b9c2f4 41 PORTA->ISFR |= (1 << 16);
Kojto 5:12ea15b9c2f4 42 }
Kojto 5:12ea15b9c2f4 43
Kojto 5:12ea15b9c2f4 44 #elif (MY_BOARD == WIFI_DIPCORTEX)
Kojto 5:12ea15b9c2f4 45
Kojto 5:12ea15b9c2f4 46 /**
Kojto 5:12ea15b9c2f4 47 * \brief Wifi DipCortex initialization
Kojto 5:12ea15b9c2f4 48 * \param none
Kojto 5:12ea15b9c2f4 49 * \return none
Kojto 5:12ea15b9c2f4 50 */
Kojto 5:12ea15b9c2f4 51 void init() {
Kojto 5:12ea15b9c2f4 52 NVIC_SetPriority(SSP1_IRQn, 0x0);
Kojto 5:12ea15b9c2f4 53 NVIC_SetPriority(PIN_INT0_IRQn, 0x1);
Kojto 5:12ea15b9c2f4 54
Kojto 5:12ea15b9c2f4 55 // SysTick set to lower priority than Wi-Fi SPI bus interrupt
Kojto 5:12ea15b9c2f4 56 NVIC_SetPriority(SysTick_IRQn, 0x2);
Kojto 5:12ea15b9c2f4 57 }
Kojto 5:12ea15b9c2f4 58
Kojto 5:12ea15b9c2f4 59 #else
Kojto 5:12ea15b9c2f4 60
Kojto 5:12ea15b9c2f4 61 /**
Kojto 5:12ea15b9c2f4 62 * \brief Place here init routine for your board
Kojto 5:12ea15b9c2f4 63 * \param none
Kojto 5:12ea15b9c2f4 64 * \return none
Kojto 5:12ea15b9c2f4 65 */
Kojto 5:12ea15b9c2f4 66 void init() {
Kojto 5:12ea15b9c2f4 67
Kojto 5:12ea15b9c2f4 68 }
Kojto 5:12ea15b9c2f4 69
Kojto 5:12ea15b9c2f4 70 #endif