Martin Kojtal / Mbed 2 deprecated cc3000_simple_socket_demo

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:

Diff: tcp_ip_demo.cpp

Revision:
5:12ea15b9c2f4
Parent:
4:b5875efcf0e5
Child:
6:6eaae34586b8
--- a/tcp_ip_demo.cpp	Thu Oct 03 16:56:32 2013 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,210 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include "tcp_ip_demo.h"
-#include "cc3000.h"
-#include "main.h"
-
-using namespace mbed_cc3000;
-
-extern cc3000 wigo;
-
-uint8_t ConnectUsingSmartConfig;
-uint8_t myMAC[8];
-tUserFS userFS;
-
-uint8_t SmartConfigProfilestored = 0xff;
-
-#ifndef CC3000_UNENCRYPTED_SMART_CONFIG
-  const uint8_t smartconfigkey[] = {0x73,0x6d,0x61,0x72,0x74,0x63,0x6f,0x6e,0x66,0x69,0x67,0x41,0x45,0x53,0x31,0x36};
-#else
-  const uint8_t smartconfigkey = 0;
-#endif
-
-/* Device name - used for Smart config in order to stop the Smart phone configuration process */
-static uint8_t DevServname[] = "CC3000";
-static int8_t requestBuffer[REQ_BUFFER_SIZE];
-
-/** Start tcp server
- *  \param  port Port for server
- *  \return none
- */
-void create_tcp_connection(int32_t port) {
-  const char python_msg[] = "Hello Python\n";
-  int32_t stat;
-  cc3000_server server = wigo.create_tcp_server(0, 15000);
-
-  server.bind();
-  server.listen(1); /* backlog = 1 */
-  while (1) {
-    stat = server.accept();
-    printf("Connected\n");
-    if (stat >= 0) {
-     server.receive(requestBuffer,20,0);
-     printf("Input = %s\n", requestBuffer);
-     stat = server.send((void *)python_msg, strlen(python_msg), 0);
-     printf("status= %d\n", stat);
-    } else {
-        printf("ERROR %d", stat);
-        switch (stat) {
-            case -1:
-                printf(": remote socket closed.\n");
-                break;
-            case -2:
-                printf(": no buffers available.\n");
-                break;
-            case -57:
-                printf(": timeout - no reply from remote.\n");
-                break;
-            default:
-                printf("\n");
-        }
-    }
-    server.close();
-    printf("Done, press any key to repeat\n");
-    getchar();
-  }
-}
-
-/** Start smart config
- *  \param  none
- *  \return none
- */
-void start_smart_config() {
-    wigo.start_smart_config(smartconfigkey);
-}
-
-/** Initialize
- *  \param  none
- *  \return none
- */
-void init_dhcp(void)
-{
-    int32_t t;
-    tNetappIpconfigRetArgs ipinfo2;
-
-    //dynamic dhcp is set by default
-#if IP_ALLOC_METHOD == USE_STATIC_IP
-    set_static_dhcp();
-#endif
-    check_dhcp();
-
-  // If we're not blocked by accept or others, obtain the latest status
-    wigo.get_ip_config(&ipinfo2);                  // data is returned in the ipinfo2 structure
-    printf("\n*** Wi-Go board DHCP assigned IP Address = %d.%d.%d.%d\n", ipinfo2.aucIP[3], ipinfo2.aucIP[2], ipinfo2.aucIP[1], ipinfo2.aucIP[0]);
-
-    t = wigo._socket.mdnsAdvertiser(1, DevServname, sizeof(DevServname));
-    printf("mDNS Status= %x\n", t);
-}
-
-/** Waits for dhcp to be set
- *  \param  none
- *  \return none
- */
-void check_dhcp(void)
-{
-    int32_t t;
-
-    while (wigo.is_dhcp_configured() == false)
-    {
-         wait_ms(500);
-         printf("Waiting for dhcp to be set.\n");
-    }
-
-    t = wigo._socket.mdnsAdvertiser(1, DevServname, sizeof(DevServname));
-    printf("mDNS Status= %x\n", t);
-}
-
-/** Sets static DHCP (auto dhpc by default)
- *  \param  none
- *  \return none
- */
-void set_static_dhcp(void)
-{
-    uint8_t pucIP_Addr[4];
-    uint8_t pucIP_DefaultGWAddr[4];
-    uint8_t pucSubnetMask[4];
-    uint8_t pucDNS[4];
-
-    // Subnet mask is assumed to be 255.255.255.0
-    pucSubnetMask[0] = 0xFF;
-    pucSubnetMask[1] = 0xFF;
-    pucSubnetMask[2] = 0xFF;
-    pucSubnetMask[3] = 0x0;
-
-    // CC3000's IP
-    pucIP_Addr[0] = STATIC_IP_OCT1;
-    pucIP_Addr[1] = STATIC_IP_OCT2;
-    pucIP_Addr[2] = STATIC_IP_OCT3;
-    pucIP_Addr[3] = STATIC_IP_OCT4;
-
-    // Default Gateway/Router IP
-    // 192.168.1.1
-    pucIP_DefaultGWAddr[0] = STATIC_IP_OCT1;
-    pucIP_DefaultGWAddr[1] = STATIC_IP_OCT2;
-    pucIP_DefaultGWAddr[2] = STATIC_IP_OCT3;
-    pucIP_DefaultGWAddr[3] = STATIC_GW_OCT4;
-
-    // We assume the router is also a DNS server
-    pucDNS[0] = STATIC_IP_OCT1;
-    pucDNS[1] = STATIC_IP_OCT2;
-    pucDNS[2] = STATIC_IP_OCT3;
-    pucDNS[3] = STATIC_GW_OCT4;
-
-    wigo._netapp.dhcp((uint32_t *)pucIP_Addr,
-                (uint32_t *)pucSubnetMask,
-                (uint32_t *)pucIP_DefaultGWAddr,
-                (uint32_t *)pucDNS);
-
-    // reset the CC3000 to apply Static Setting
-    wigo._wlan.stop();
-    wait(1);
-    wigo._wlan.start(0);
-
-    // Mask out all non-required events from CC3000
-    wigo._wlan.set_event_mask(HCI_EVNT_WLAN_KEEPALIVE|
-                        HCI_EVNT_WLAN_UNSOL_INIT|
-                        HCI_EVNT_WLAN_ASYNC_PING_REPORT);
-}
-
-/** Executes functions for tcp/ip server
- *  \param  none
- *  \return none
- */
-void run_tcp_server(void)
-{
-    init_dhcp();
-    printf("\n\nStarting TCP/IP Server\n");
-    create_tcp_connection(TCPIP_PORT);
-}
-
-/** First time configuration
- *  \param  none
- *  \return none
- */
-void do_FTC(void)
-{
-    printf("Running First Time Configuration\n");
-    start_smart_config();
-    init_dhcp();
-    userFS.FTC = 1;
-    wigo.set_user_file_info((uint8_t *)&userFS, sizeof(userFS));
-    SmartConfigProfilestored = SMART_CONFIG_SET;
-    wigo._wlan.stop();
-    printf("FTC finished.\n");
-}
-
-
-