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:
Sun Oct 06 12:31:50 2013 +0200
Revision:
6:6eaae34586b8
Parent:
5:12ea15b9c2f4
Child:
7:afaa17c11965
Client init only once, return from receive processed

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 6:6eaae34586b8 1 /* mbed Microcontroller Library
Kojto 6:6eaae34586b8 2 * Copyright (c) 2006-2013 ARM Limited
Kojto 6:6eaae34586b8 3 *
Kojto 6:6eaae34586b8 4 * Licensed under the Apache License, Version 2.0 (the "License");
Kojto 6:6eaae34586b8 5 * you may not use this file except in compliance with the License.
Kojto 6:6eaae34586b8 6 * You may obtain a copy of the License at
Kojto 6:6eaae34586b8 7 *
Kojto 6:6eaae34586b8 8 * http://www.apache.org/licenses/LICENSE-2.0
Kojto 6:6eaae34586b8 9 *
Kojto 6:6eaae34586b8 10 * Unless required by applicable law or agreed to in writing, software
Kojto 6:6eaae34586b8 11 * distributed under the License is distributed on an "AS IS" BASIS,
Kojto 6:6eaae34586b8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Kojto 6:6eaae34586b8 13 * See the License for the specific language governing permissions and
Kojto 6:6eaae34586b8 14 * limitations under the License.
Kojto 6:6eaae34586b8 15 */
Kojto 6:6eaae34586b8 16 #include "mbed.h"
Kojto 6:6eaae34586b8 17 #include "cc3000.h"
Kojto 6:6eaae34586b8 18 #include "main.h"
Kojto 6:6eaae34586b8 19 #include "TCPSocketConnection.h"
Kojto 6:6eaae34586b8 20 #include "TCPSocketServer.h"
Kojto 6:6eaae34586b8 21
Kojto 6:6eaae34586b8 22 using namespace mbed_cc3000;
Kojto 6:6eaae34586b8 23
Kojto 6:6eaae34586b8 24 tUserFS user_info;
Kojto 6:6eaae34586b8 25
Kojto 6:6eaae34586b8 26 /* cc3000 module declaration specific for user's board. Check also init() */
Kojto 6:6eaae34586b8 27 #if (MY_BOARD == WIGO)
Kojto 6:6eaae34586b8 28 cc3000 wifi(PTA16, PTA13, PTD0, SPI(PTD2, PTD3, PTC5), PORTA_IRQn);
Kojto 6:6eaae34586b8 29 Serial pc(USBTX, USBRX);
Kojto 6:6eaae34586b8 30 #elif (MY_BOARD == WIFI_DIPCORTEX)
Kojto 6:6eaae34586b8 31 cc3000 wifi(p28, p27, p30, SPI(p21, p14, p37), PIN_INT0_IRQn);
Kojto 6:6eaae34586b8 32 Serial pc(UART_TX, UART_RX);
Kojto 6:6eaae34586b8 33 #else
Kojto 6:6eaae34586b8 34
Kojto 6:6eaae34586b8 35 #endif
Kojto 6:6eaae34586b8 36
Kojto 6:6eaae34586b8 37 #ifndef CC3000_UNENCRYPTED_SMART_CONFIG
Kojto 6:6eaae34586b8 38 const uint8_t smartconfigkey[] = {0x73,0x6d,0x61,0x72,0x74,0x63,0x6f,0x6e,0x66,0x69,0x67,0x41,0x45,0x53,0x31,0x36};
Kojto 6:6eaae34586b8 39 #else
Kojto 6:6eaae34586b8 40 const uint8_t smartconfigkey = 0;
Kojto 6:6eaae34586b8 41 #endif
Kojto 6:6eaae34586b8 42
Kojto 6:6eaae34586b8 43 /**
Kojto 6:6eaae34586b8 44 * \brief Print cc3000 information
Kojto 6:6eaae34586b8 45 * \param none
Kojto 6:6eaae34586b8 46 * \return none
Kojto 6:6eaae34586b8 47 */
Kojto 6:6eaae34586b8 48 void print_cc3000_info() {
Kojto 6:6eaae34586b8 49 uint8_t myMAC[8];
Kojto 6:6eaae34586b8 50
Kojto 6:6eaae34586b8 51 printf("MAC address + cc3000 info \r\n");
Kojto 6:6eaae34586b8 52 wifi.get_user_file_info((uint8_t *)&user_info, sizeof(user_info));
Kojto 6:6eaae34586b8 53 wifi.get_mac_address(myMAC);
Kojto 6:6eaae34586b8 54 printf(" MAC address %02x:%02x:%02x:%02x:%02x:%02x \r\n \r\n", myMAC[0], myMAC[1], myMAC[2], myMAC[3], myMAC[4], myMAC[5]);
Kojto 6:6eaae34586b8 55
Kojto 6:6eaae34586b8 56 printf(" FTC %i \r\n",user_info.FTC);
Kojto 6:6eaae34586b8 57 printf(" PP_version %i.%i \r\n",user_info.PP_version[0], user_info.PP_version[1]);
Kojto 6:6eaae34586b8 58 printf(" SERV_PACK %i.%i \r\n",user_info.SERV_PACK[0], user_info.SERV_PACK[1]);
Kojto 6:6eaae34586b8 59 printf(" DRV_VER %i.%i.%i \r\n",user_info.DRV_VER[0], user_info.DRV_VER[1], user_info.DRV_VER[2]);
Kojto 6:6eaae34586b8 60 printf(" FW_VER %i.%i.%i \r\n",user_info.FW_VER[0], user_info.FW_VER[1], user_info.FW_VER[2]);
Kojto 6:6eaae34586b8 61 }
Kojto 6:6eaae34586b8 62
Kojto 6:6eaae34586b8 63 /**
Kojto 6:6eaae34586b8 64 * \brief Connect to SSID with a timeout
Kojto 6:6eaae34586b8 65 * \param ssid Name of SSID
Kojto 6:6eaae34586b8 66 * \param key Password
Kojto 6:6eaae34586b8 67 * \param sec_mode Security mode
Kojto 6:6eaae34586b8 68 * \return none
Kojto 6:6eaae34586b8 69 */
Kojto 6:6eaae34586b8 70 void connect_to_ssid(char *ssid, char *key, unsigned char sec_mode) {
Kojto 6:6eaae34586b8 71 printf("Connecting to SSID: %s. Timeout is 10s.\n",ssid);
Kojto 6:6eaae34586b8 72 if (wifi.connect_to_AP((uint8_t *)ssid, (uint8_t *)key, sec_mode) == true) {
Kojto 6:6eaae34586b8 73 printf(" Connected\n");
Kojto 6:6eaae34586b8 74 } else {
Kojto 6:6eaae34586b8 75 printf(" Connection timed-out (error). Please restart.\n");
Kojto 6:6eaae34586b8 76 while(1);
Kojto 6:6eaae34586b8 77 }
Kojto 6:6eaae34586b8 78 }
Kojto 6:6eaae34586b8 79
Kojto 6:6eaae34586b8 80 /**
Kojto 6:6eaae34586b8 81 * \brief Connect to SSID without security
Kojto 6:6eaae34586b8 82 * \param ssid Name of SSID
Kojto 6:6eaae34586b8 83 * \return none
Kojto 6:6eaae34586b8 84 */
Kojto 6:6eaae34586b8 85 void connect_to_ssid(char *ssid) {
Kojto 6:6eaae34586b8 86 wifi.connect_open((uint8_t *)ssid);
Kojto 6:6eaae34586b8 87 }
Kojto 6:6eaae34586b8 88
Kojto 6:6eaae34586b8 89 /**
Kojto 6:6eaae34586b8 90 * \brief First time configuration
Kojto 6:6eaae34586b8 91 * \param none
Kojto 6:6eaae34586b8 92 * \return none
Kojto 6:6eaae34586b8 93 */
Kojto 6:6eaae34586b8 94 void do_FTC(void) {
Kojto 6:6eaae34586b8 95 printf("Running First Time Configuration \r\n");
Kojto 6:6eaae34586b8 96 wifi.start_smart_config(smartconfigkey);
Kojto 6:6eaae34586b8 97 while (wifi.is_dhcp_configured() == false) {
Kojto 6:6eaae34586b8 98 wait_ms(500);
Kojto 6:6eaae34586b8 99 printf("Waiting for dhcp to be set. \r\n");
Kojto 6:6eaae34586b8 100 }
Kojto 6:6eaae34586b8 101 user_info.FTC = 1;
Kojto 6:6eaae34586b8 102 wifi.set_user_file_info((uint8_t *)&user_info, sizeof(user_info));
Kojto 6:6eaae34586b8 103 wifi._wlan.stop();
Kojto 6:6eaae34586b8 104 printf("FTC finished.\n");
Kojto 6:6eaae34586b8 105 }
Kojto 6:6eaae34586b8 106
Kojto 6:6eaae34586b8 107 /** Start smart config
Kojto 6:6eaae34586b8 108 * \param none
Kojto 6:6eaae34586b8 109 * \return none
Kojto 6:6eaae34586b8 110 */
Kojto 6:6eaae34586b8 111 void start_smart_config() {
Kojto 6:6eaae34586b8 112 wifi.start_smart_config(smartconfigkey);
Kojto 6:6eaae34586b8 113 }
Kojto 6:6eaae34586b8 114
Kojto 6:6eaae34586b8 115 /** Main function
Kojto 6:6eaae34586b8 116 * \param none
Kojto 6:6eaae34586b8 117 * \return int
Kojto 6:6eaae34586b8 118 */
Kojto 6:6eaae34586b8 119 int main() {
Kojto 6:6eaae34586b8 120 init(); /* board dependent init */
Kojto 6:6eaae34586b8 121 pc.baud(115200);
Kojto 6:6eaae34586b8 122
Kojto 6:6eaae34586b8 123 wifi.start(0);
Kojto 6:6eaae34586b8 124 printf("cc3000 Simple socket demo. \r\n");
Kojto 6:6eaae34586b8 125 print_cc3000_info();
Kojto 6:6eaae34586b8 126
Kojto 6:6eaae34586b8 127 printf("\n<0> Normal run. SmartConfig will \r\n start if no valid connection exists. \r\n");
Kojto 6:6eaae34586b8 128 printf("<1> Connect using fixed SSID : %s \r\n", SSID);
Kojto 6:6eaae34586b8 129 printf("<2> SmartConfig. \r\n");
Kojto 6:6eaae34586b8 130
Kojto 6:6eaae34586b8 131 signed char c = getchar();
Kojto 6:6eaae34586b8 132 switch (c)
Kojto 6:6eaae34586b8 133 {
Kojto 6:6eaae34586b8 134 case '0':
Kojto 6:6eaae34586b8 135 if(!user_info.FTC)
Kojto 6:6eaae34586b8 136 {
Kojto 6:6eaae34586b8 137 do_FTC();
Kojto 6:6eaae34586b8 138 wifi._wlan.stop();
Kojto 6:6eaae34586b8 139 }
Kojto 6:6eaae34586b8 140 break;
Kojto 6:6eaae34586b8 141 case '1':
Kojto 6:6eaae34586b8 142 printf("Attempting SSID Connection. \r\n");
Kojto 6:6eaae34586b8 143 #ifndef CC3000_TINY_DRIVER
Kojto 6:6eaae34586b8 144 #ifdef AP_KEY
Kojto 6:6eaae34586b8 145 connect_to_ssid(SSID, AP_KEY, AP_SECURITY); /* TODO rewrite to const vraiables - NOT MACROS */
Kojto 6:6eaae34586b8 146 #else
Kojto 6:6eaae34586b8 147 connect_to_ssid(SSID);
Kojto 6:6eaae34586b8 148 #endif
Kojto 6:6eaae34586b8 149 #else
Kojto 6:6eaae34586b8 150 connect_to_ssid(SSID);
Kojto 6:6eaae34586b8 151 #endif
Kojto 6:6eaae34586b8 152 break;
Kojto 6:6eaae34586b8 153 case '2':
Kojto 6:6eaae34586b8 154 printf("Starting Smart Config configuration. \r\n");
Kojto 6:6eaae34586b8 155 start_smart_config();
Kojto 6:6eaae34586b8 156 while (wifi.is_dhcp_configured() == false)
Kojto 6:6eaae34586b8 157 {
Kojto 6:6eaae34586b8 158 wait_ms(500);
Kojto 6:6eaae34586b8 159 printf("Waiting for dhcp to be set. \r\n");
Kojto 6:6eaae34586b8 160 }
Kojto 6:6eaae34586b8 161
Kojto 6:6eaae34586b8 162 printf("Press the reset button on your board and select 0... \r\n");
Kojto 6:6eaae34586b8 163 while(1);
Kojto 6:6eaae34586b8 164 default:
Kojto 6:6eaae34586b8 165 printf("Wrong selection. \r\n");
Kojto 6:6eaae34586b8 166 printf("Reset the board and try again. \r\n");
Kojto 6:6eaae34586b8 167 break;
Kojto 6:6eaae34586b8 168 }
Kojto 6:6eaae34586b8 169
Kojto 6:6eaae34586b8 170 printf("DHCP request \r\n");
Kojto 6:6eaae34586b8 171 while (wifi.is_dhcp_configured() == false) {
Kojto 6:6eaae34586b8 172 wait_ms(500);
Kojto 6:6eaae34586b8 173 printf(" Waiting for dhcp to be set. \r\n");
Kojto 6:6eaae34586b8 174 }
Kojto 6:6eaae34586b8 175
Kojto 6:6eaae34586b8 176 tNetappIpconfigRetArgs ipinfo2;
Kojto 6:6eaae34586b8 177 wifi.get_ip_config(&ipinfo2); // data is returned in the ipinfo2 structure
Kojto 6:6eaae34586b8 178 printf("DHCP assigned IP Address = %d.%d.%d.%d \r\n", ipinfo2.aucIP[3], ipinfo2.aucIP[2], ipinfo2.aucIP[1], ipinfo2.aucIP[0]);
Kojto 6:6eaae34586b8 179
Kojto 6:6eaae34586b8 180 char python_msg[] = "Hello Python\n";
Kojto 6:6eaae34586b8 181 TCPSocketServer server;
Kojto 6:6eaae34586b8 182 TCPSocketConnection client;
Kojto 6:6eaae34586b8 183
Kojto 6:6eaae34586b8 184 server.bind(15000);
Kojto 6:6eaae34586b8 185 server.listen();
Kojto 6:6eaae34586b8 186
Kojto 6:6eaae34586b8 187 while (1) {
Kojto 6:6eaae34586b8 188 int32_t status = server.accept(client);
Kojto 6:6eaae34586b8 189 if (status >= 0) {
Kojto 6:6eaae34586b8 190 client.set_blocking(false, 1500); // Timeout after (1.5)s
Kojto 6:6eaae34586b8 191 printf("Connection from: %s \r\n", client.get_address());
Kojto 6:6eaae34586b8 192 char buffer[256];
Kojto 6:6eaae34586b8 193 int stat = client.receive(buffer, sizeof(buffer));
Kojto 6:6eaae34586b8 194 if (stat >=0) {
Kojto 6:6eaae34586b8 195 printf("Received: %s \r\n",buffer);
Kojto 6:6eaae34586b8 196 printf("Sending the message to the server. \r\n");
Kojto 6:6eaae34586b8 197 client.send_all(python_msg, sizeof(python_msg));
Kojto 6:6eaae34586b8 198 client.close();
Kojto 6:6eaae34586b8 199 }
Kojto 6:6eaae34586b8 200 }
Kojto 6:6eaae34586b8 201 }
Kojto 6:6eaae34586b8 202 }