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:
Wed Oct 09 21:40:48 2013 +0200
Revision:
8:be68e827aa53
Parent:
7:afaa17c11965
Child:
10:09a1dd3fbd3d
Smart config correction

- options now are 0,1,2 and 9
- prints user settings for an access point

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 8:be68e827aa53 22 #define STRINGIFY(x) #x
Kojto 8:be68e827aa53 23 #define TO_STRING(x) STRINGIFY(x)
Kojto 8:be68e827aa53 24
Kojto 6:6eaae34586b8 25 using namespace mbed_cc3000;
Kojto 6:6eaae34586b8 26
Kojto 6:6eaae34586b8 27 tUserFS user_info;
Kojto 6:6eaae34586b8 28
Kojto 6:6eaae34586b8 29 /* cc3000 module declaration specific for user's board. Check also init() */
Kojto 6:6eaae34586b8 30 #if (MY_BOARD == WIGO)
Kojto 6:6eaae34586b8 31 cc3000 wifi(PTA16, PTA13, PTD0, SPI(PTD2, PTD3, PTC5), PORTA_IRQn);
Kojto 6:6eaae34586b8 32 Serial pc(USBTX, USBRX);
Kojto 6:6eaae34586b8 33 #elif (MY_BOARD == WIFI_DIPCORTEX)
Kojto 6:6eaae34586b8 34 cc3000 wifi(p28, p27, p30, SPI(p21, p14, p37), PIN_INT0_IRQn);
Kojto 6:6eaae34586b8 35 Serial pc(UART_TX, UART_RX);
Kojto 6:6eaae34586b8 36 #else
Kojto 6:6eaae34586b8 37
Kojto 6:6eaae34586b8 38 #endif
Kojto 6:6eaae34586b8 39
Kojto 6:6eaae34586b8 40 #ifndef CC3000_UNENCRYPTED_SMART_CONFIG
Kojto 6:6eaae34586b8 41 const uint8_t smartconfigkey[] = {0x73,0x6d,0x61,0x72,0x74,0x63,0x6f,0x6e,0x66,0x69,0x67,0x41,0x45,0x53,0x31,0x36};
Kojto 6:6eaae34586b8 42 #else
Kojto 6:6eaae34586b8 43 const uint8_t smartconfigkey = 0;
Kojto 6:6eaae34586b8 44 #endif
Kojto 6:6eaae34586b8 45
Kojto 6:6eaae34586b8 46 /**
Kojto 6:6eaae34586b8 47 * \brief Print cc3000 information
Kojto 6:6eaae34586b8 48 * \param none
Kojto 6:6eaae34586b8 49 * \return none
Kojto 6:6eaae34586b8 50 */
Kojto 6:6eaae34586b8 51 void print_cc3000_info() {
Kojto 6:6eaae34586b8 52 uint8_t myMAC[8];
Kojto 6:6eaae34586b8 53
Kojto 6:6eaae34586b8 54 printf("MAC address + cc3000 info \r\n");
Kojto 6:6eaae34586b8 55 wifi.get_user_file_info((uint8_t *)&user_info, sizeof(user_info));
Kojto 6:6eaae34586b8 56 wifi.get_mac_address(myMAC);
Kojto 6:6eaae34586b8 57 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 58
Kojto 6:6eaae34586b8 59 printf(" FTC %i \r\n",user_info.FTC);
Kojto 6:6eaae34586b8 60 printf(" PP_version %i.%i \r\n",user_info.PP_version[0], user_info.PP_version[1]);
Kojto 6:6eaae34586b8 61 printf(" SERV_PACK %i.%i \r\n",user_info.SERV_PACK[0], user_info.SERV_PACK[1]);
Kojto 6:6eaae34586b8 62 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 63 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 64 }
Kojto 6:6eaae34586b8 65
Kojto 6:6eaae34586b8 66 /**
Kojto 6:6eaae34586b8 67 * \brief Connect to SSID with a timeout
Kojto 6:6eaae34586b8 68 * \param ssid Name of SSID
Kojto 6:6eaae34586b8 69 * \param key Password
Kojto 6:6eaae34586b8 70 * \param sec_mode Security mode
Kojto 6:6eaae34586b8 71 * \return none
Kojto 6:6eaae34586b8 72 */
Kojto 6:6eaae34586b8 73 void connect_to_ssid(char *ssid, char *key, unsigned char sec_mode) {
Kojto 7:afaa17c11965 74 printf("Connecting to SSID: %s. Timeout is 10s. \r\n",ssid);
Kojto 6:6eaae34586b8 75 if (wifi.connect_to_AP((uint8_t *)ssid, (uint8_t *)key, sec_mode) == true) {
Kojto 7:afaa17c11965 76 printf(" Connected. \r\n");
Kojto 6:6eaae34586b8 77 } else {
Kojto 7:afaa17c11965 78 printf(" Connection timed-out (error). Please restart. \r\n");
Kojto 6:6eaae34586b8 79 while(1);
Kojto 6:6eaae34586b8 80 }
Kojto 6:6eaae34586b8 81 }
Kojto 6:6eaae34586b8 82
Kojto 6:6eaae34586b8 83 /**
Kojto 6:6eaae34586b8 84 * \brief Connect to SSID without security
Kojto 6:6eaae34586b8 85 * \param ssid Name of SSID
Kojto 6:6eaae34586b8 86 * \return none
Kojto 6:6eaae34586b8 87 */
Kojto 6:6eaae34586b8 88 void connect_to_ssid(char *ssid) {
Kojto 6:6eaae34586b8 89 wifi.connect_open((uint8_t *)ssid);
Kojto 6:6eaae34586b8 90 }
Kojto 6:6eaae34586b8 91
Kojto 6:6eaae34586b8 92 /**
Kojto 6:6eaae34586b8 93 * \brief First time configuration
Kojto 6:6eaae34586b8 94 * \param none
Kojto 6:6eaae34586b8 95 * \return none
Kojto 6:6eaae34586b8 96 */
Kojto 6:6eaae34586b8 97 void do_FTC(void) {
Kojto 6:6eaae34586b8 98 printf("Running First Time Configuration \r\n");
Kojto 6:6eaae34586b8 99 wifi.start_smart_config(smartconfigkey);
Kojto 6:6eaae34586b8 100 while (wifi.is_dhcp_configured() == false) {
Kojto 6:6eaae34586b8 101 wait_ms(500);
Kojto 6:6eaae34586b8 102 printf("Waiting for dhcp to be set. \r\n");
Kojto 6:6eaae34586b8 103 }
Kojto 6:6eaae34586b8 104 user_info.FTC = 1;
Kojto 6:6eaae34586b8 105 wifi.set_user_file_info((uint8_t *)&user_info, sizeof(user_info));
Kojto 6:6eaae34586b8 106 wifi._wlan.stop();
Kojto 7:afaa17c11965 107 printf("FTC finished. \r\n");
Kojto 6:6eaae34586b8 108 }
Kojto 6:6eaae34586b8 109
Kojto 8:be68e827aa53 110 /**
Kojto 7:afaa17c11965 111 * \brief Start smart config
Kojto 7:afaa17c11965 112 * \param none
Kojto 6:6eaae34586b8 113 * \return none
Kojto 6:6eaae34586b8 114 */
Kojto 6:6eaae34586b8 115 void start_smart_config() {
Kojto 6:6eaae34586b8 116 wifi.start_smart_config(smartconfigkey);
Kojto 6:6eaae34586b8 117 }
Kojto 6:6eaae34586b8 118
Kojto 8:be68e827aa53 119 /**
Kojto 7:afaa17c11965 120 * \brief Simple socket demo
Kojto 7:afaa17c11965 121 * \param none
Kojto 6:6eaae34586b8 122 * \return int
Kojto 6:6eaae34586b8 123 */
Kojto 6:6eaae34586b8 124 int main() {
Kojto 6:6eaae34586b8 125 init(); /* board dependent init */
Kojto 6:6eaae34586b8 126 pc.baud(115200);
Kojto 6:6eaae34586b8 127
Kojto 6:6eaae34586b8 128 wifi.start(0);
Kojto 7:afaa17c11965 129 printf("cc3000 simple socket demo. \r\n");
Kojto 6:6eaae34586b8 130 print_cc3000_info();
Kojto 6:6eaae34586b8 131
Kojto 8:be68e827aa53 132 printf("User's AP setup: SSID: %s, Password: %s, Security: %s \r\n", TO_STRING(SSID), TO_STRING(AP_KEY), TO_STRING(AP_SECURITY));
Kojto 8:be68e827aa53 133
Kojto 6:6eaae34586b8 134 printf("\n<0> Normal run. SmartConfig will \r\n start if no valid connection exists. \r\n");
Kojto 8:be68e827aa53 135 printf("<1> Connect using fixed SSID without AP_KEY: %s \r\n", SSID);
Kojto 8:be68e827aa53 136 printf("<2> Connect using fixed SSID with AP_KEY: %s \r\n", SSID);
Kojto 8:be68e827aa53 137 printf("<9> SmartConfig. \r\n");
Kojto 6:6eaae34586b8 138
Kojto 6:6eaae34586b8 139 signed char c = getchar();
Kojto 6:6eaae34586b8 140 switch (c)
Kojto 6:6eaae34586b8 141 {
Kojto 6:6eaae34586b8 142 case '0':
Kojto 8:be68e827aa53 143 if (!user_info.FTC)
Kojto 6:6eaae34586b8 144 {
Kojto 6:6eaae34586b8 145 do_FTC();
Kojto 6:6eaae34586b8 146 wifi._wlan.stop();
Kojto 6:6eaae34586b8 147 }
Kojto 6:6eaae34586b8 148 break;
Kojto 6:6eaae34586b8 149 case '1':
Kojto 6:6eaae34586b8 150 printf("Attempting SSID Connection. \r\n");
Kojto 8:be68e827aa53 151
Kojto 8:be68e827aa53 152 wifi._wlan.ioctl_set_connection_policy(0, 0, 0);
Kojto 8:be68e827aa53 153 wait(1);
Kojto 8:be68e827aa53 154 wifi.stop();
Kojto 8:be68e827aa53 155 wait(1);
Kojto 8:be68e827aa53 156 wifi.start(0);
Kojto 8:be68e827aa53 157 connect_to_ssid(SSID);
Kojto 8:be68e827aa53 158 break;
Kojto 8:be68e827aa53 159 case '2':
Kojto 8:be68e827aa53 160 printf("Attempting SSID Connection. \r\n");
Kojto 8:be68e827aa53 161
Kojto 8:be68e827aa53 162 wifi._wlan.ioctl_set_connection_policy(0, 0, 0);
Kojto 8:be68e827aa53 163 wait(1);
Kojto 8:be68e827aa53 164 wifi.stop();
Kojto 8:be68e827aa53 165 wait(1);
Kojto 8:be68e827aa53 166 wifi.start(0);
Kojto 6:6eaae34586b8 167 #ifndef CC3000_TINY_DRIVER
Kojto 8:be68e827aa53 168 connect_to_ssid(SSID, AP_KEY, AP_SECURITY);
Kojto 6:6eaae34586b8 169 #else
Kojto 6:6eaae34586b8 170 connect_to_ssid(SSID);
Kojto 6:6eaae34586b8 171 #endif
Kojto 6:6eaae34586b8 172 break;
Kojto 8:be68e827aa53 173 case '9':
Kojto 6:6eaae34586b8 174 printf("Starting Smart Config configuration. \r\n");
Kojto 6:6eaae34586b8 175 start_smart_config();
Kojto 6:6eaae34586b8 176 while (wifi.is_dhcp_configured() == false)
Kojto 6:6eaae34586b8 177 {
Kojto 6:6eaae34586b8 178 wait_ms(500);
Kojto 6:6eaae34586b8 179 printf("Waiting for dhcp to be set. \r\n");
Kojto 6:6eaae34586b8 180 }
Kojto 6:6eaae34586b8 181
Kojto 6:6eaae34586b8 182 printf("Press the reset button on your board and select 0... \r\n");
Kojto 6:6eaae34586b8 183 while(1);
Kojto 6:6eaae34586b8 184 default:
Kojto 6:6eaae34586b8 185 printf("Wrong selection. \r\n");
Kojto 6:6eaae34586b8 186 printf("Reset the board and try again. \r\n");
Kojto 6:6eaae34586b8 187 break;
Kojto 6:6eaae34586b8 188 }
Kojto 6:6eaae34586b8 189
Kojto 6:6eaae34586b8 190 printf("DHCP request \r\n");
Kojto 6:6eaae34586b8 191 while (wifi.is_dhcp_configured() == false) {
Kojto 6:6eaae34586b8 192 wait_ms(500);
Kojto 6:6eaae34586b8 193 printf(" Waiting for dhcp to be set. \r\n");
Kojto 6:6eaae34586b8 194 }
Kojto 6:6eaae34586b8 195
Kojto 6:6eaae34586b8 196 tNetappIpconfigRetArgs ipinfo2;
Kojto 6:6eaae34586b8 197 wifi.get_ip_config(&ipinfo2); // data is returned in the ipinfo2 structure
Kojto 6:6eaae34586b8 198 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 199
Kojto 6:6eaae34586b8 200 char python_msg[] = "Hello Python\n";
Kojto 6:6eaae34586b8 201 TCPSocketServer server;
Kojto 6:6eaae34586b8 202 TCPSocketConnection client;
Kojto 6:6eaae34586b8 203
Kojto 6:6eaae34586b8 204 server.bind(15000);
Kojto 6:6eaae34586b8 205 server.listen();
Kojto 6:6eaae34586b8 206
Kojto 6:6eaae34586b8 207 while (1) {
Kojto 6:6eaae34586b8 208 int32_t status = server.accept(client);
Kojto 6:6eaae34586b8 209 if (status >= 0) {
Kojto 6:6eaae34586b8 210 client.set_blocking(false, 1500); // Timeout after (1.5)s
Kojto 6:6eaae34586b8 211 printf("Connection from: %s \r\n", client.get_address());
Kojto 6:6eaae34586b8 212 char buffer[256];
Kojto 6:6eaae34586b8 213 int stat = client.receive(buffer, sizeof(buffer));
Kojto 6:6eaae34586b8 214 if (stat >=0) {
Kojto 6:6eaae34586b8 215 printf("Received: %s \r\n",buffer);
Kojto 6:6eaae34586b8 216 printf("Sending the message to the server. \r\n");
Kojto 6:6eaae34586b8 217 client.send_all(python_msg, sizeof(python_msg));
Kojto 6:6eaae34586b8 218 client.close();
Kojto 6:6eaae34586b8 219 }
Kojto 6:6eaae34586b8 220 }
Kojto 6:6eaae34586b8 221 }
Kojto 6:6eaae34586b8 222 }