CC3200 and Azure IoT Hub - MQTT Protocol

Hi Emilio!

This isn't exactly provided in the CC3200 SDK, but there are both MQTT client and server examples. This page may help you get started with Azure:

http://www.ti.com/ww/en/internet_of_things/Microsoft-Azure-IoT-Suite-for-SimpleLink-Wi-Fi-LaunchPad.html

You can also find some references provided by the community that may help you out. For example, the following -

https://e2e.ti.com/support/wireless_connectivity/simplelink_wifi_cc31xx_cc32xx/f/968/t/389386

Best Regards,

Ben

Hi Ben

Have gone through heaps of examples but keep getting "broker connect fail for conn 1" error.  Am using mqtt_client sample with connect_config structure set as follows:

connect_config usr_connect_config[] =
{
{
{
{
SL_MQTT_NETCONN_URL | SL_MQTT_NETCONN_SEC,
SERVER_ADDRESS,                                                                             /* XXXX.azure-devices.net */
PORT_NUMBER,                                                                                    /* 8883 */
SL_SO_SEC_METHOD_TLSV1_1,
SL_SEC_MASK_TLS_RSA_WITH_AES_256_CBC_SHA,
1,
security_file_list                                                                                       /* == { NULL, NULL, "/cert/ms.der" } */
},
SERVER_MODE,                                                                                   /* MQTT_3_1_1 */
true,
},
NULL,
"myFirstDevice",
"XXXX.azure-devices.net/myFirstDevice",
"SharedAccessSignature sr=XXXX.azure-devices.net%2Fdevices%2FmyFirstDevice&sig=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=1476363479",
true,
KEEP_ALIVE_TIMER,
{Mqtt_Recv, sl_MqttEvt, sl_MqttDisconnect},
TOPIC_COUNT,
{TOPIC1},
{QOS1},
{WILL_TOPIC,WILL_MSG,WILL_QOS,WILL_RETAIN},
false
}
};

ms.der is certificate used in sdk http iothub example provided by which in this case connected and sent messages.  I verified the location ofthe ms.der file using uniflash.

Also included set_time() function from sdk http example before connect:

static int set_time()
{
SlDateTime_t dt;

struct tm startTime = {0};
time_t ts;

dt.sl_tm_day = DAY;
dt.sl_tm_mon = MONTH;
dt.sl_tm_year = YEAR;
dt.sl_tm_hour = HOUR;
dt.sl_tm_min = MINUTE;
dt.sl_tm_sec = SECOND;

sl_DevSet(SL_DEVICE_GENERAL_CONFIGURATION,
SL_DEVICE_GENERAL_CONFIGURATION_DATE_TIME,
sizeof(SlDateTime_t),(unsigned char *)(&dt));

/* Set system clock on application microcontroller */
startTime.tm_mday = DAY;
startTime.tm_mon = MONTH - MONTHDIFF;
startTime.tm_year = YEAR - YEARDIFF;
startTime.tm_hour = HOUR;
startTime.tm_min = MINUTE;
startTime.tm_sec = SECOND;
ts = mktime(&startTime);

Seconds_set(ts - (unsigned int) TIMEDIFF);

return SUCCESS;
}

Not sure what to do next.

Thanks

Emilio