AWS IoT MQTT for TI CC3235SF

Question

Hi, I'm refering to below site:
https://docs.aws.amazon.com/freertos/latest/userguide/getting_started_ti.html
I'm getting warnings in build related to include paths. (30 warnings, unable to attach screenshot)

I'm getting below error in terminal when build and no data on test MQTT:
Device came up in Station mode
[WLAN EVENT] STA Connected to the AP: TP-Link_BB81 , BSSID: e8:48:b8:61:bb:81
[NETAPP EVENT] IP acquired by the device
1 2535 [Tmr Svc] Write certificate...

2 5349 [Tmr Svc] [ERROR] Failed to destroy object. PKCS11_PAL_DestroyObject failed.
3 5349 [Tmr Svc] Write certificate...

4 5632 [Tmr Svc] Security alert threshold = 15

5 5633 [Tmr Svc] Current number of alertDevice disconnected from the AP on application's request 
s = 0

6 5650 [Tmr Svc] Running Demos.

7 5654 [iot_thread] [INFO ][DEMO][5654] ---------STARTING DEMO---------

8 5662 [iot_thread] [INFO ][INIT][5661] SDK successfully initialized.

Device came up in Station mode
[WLAN EVENT] STA Connected to the AP: TP-Link_BB81 , BSSID: e8:48:b8:61:bb:81
[NETAPP EVENT] IP acquired by the device

Device has connected to TP-Link_BB81
Device IP Address is 192.168.0.105

9 9126 [iot_thread] [INFO ][DEMO][9126] Successfully initialized the demo. Network type for the demo: 1

10 9127 [iot_thread] [INFO] Creating a TLS connection to a2m3gcrxudnep8-ats.iot.ap-south-1.amazonaws.com:8883.
11 9691 [iot_thread] [INFO] Creating an MQTT connection to a2m3gcrxudnep8-ats.iot.ap-south-1.amazonaws.com.
12 9725 [pthread] [SimpleLinkSockEventHandler EVENT]: Unexpected Event: 2, Socket: 0 Reason: 0.

13 9734 [iot_thread] ERROR: -452 Socket receive failed.

14 9734 [iot_thread] [ERROR] Failed to receive data over network. bytesReceived=-1
15 9735 [iot_thread] [ERROR] A single byte was not read from the transport: transportStatus=-1.
16 9735 [iot_thread] [ERROR] CONNACK recv failed with status = MQTTRecvFailed.
17 9735 [iot_thread] [ERROR] MQTT connection failed with status = MQTTRecvFailed.
18 9735 [iot_thread] [ERROR] Failed to establish MQTT connection: Server=a2m3gcrxudnep8-ats.iot.ap-south-1.amazonaws.com, MQTTStatus=MQTTRecvFailed
19 9785 [iot_thread] [INFO] Demo failed at iteration 1.
20 9786 [iot_thread] [INFO] Short delay before starting the next iteration.... 
21 14786 [iot_thread] [INFO] Creating a TLS connection to a2m3gcrxudnep8-ats.iot.ap-south-1.amazonaws.com:8883.
22 15206 [iot_thread] [INFO] Creating an MQTT connection to a2m3gcrxudnep8-ats.iot.ap-south-1.amazonaws.com.
23 15236 [pthread] [SimpleLinkSockEventHandler EVENT]: Unexpected Event: 2, Socket: 1 Reason: 0.

24 15245 [iot_thread] ERROR: -452 Socket receive failed.

25 15246 [iot_thread] [ERROR] Failed to receive data over network. bytesReceived=-1
26 15246 [iot_thread] [ERROR] A single byte was not read from the transport: transportStatus=-1.
27 15246 [iot_thread] [ERROR] CONNACK recv failed with status = MQTTRecvFailed.
28 15246 [iot_thread] [ERROR] MQTT connection failed with status = MQTTRecvFailed.
29 15246 [iot_thread] [ERROR] Failed to establish MQTT connection: Server=a2m3gcrxudnep8-ats.iot.ap-south-1.amazonaws.com, MQTTStatus=MQTTRecvFailed
30 15297 [iot_thread] [INFO] Demo failed at iteration 2.
31 15297 [iot_thread] [INFO] Short delay before starting the next iteration.... 
32 20298 [iot_thread] [INFO] Creating a TLS connection to a2m3gcrxudnep8-ats.iot.ap-south-1.amazonaws.com:8883.
33 20808 [iot_thread] [INFO] Creating an MQTT connection to a2m3gcrxudnep8-ats.iot.ap-south-1.amazonaws.com.
34 20839 [pthread] [SimpleLinkSockEventHandler EVENT]: Unexpected Event: 2, Socket: 2 Reason: 0.

35 20848 [iot_thread] ERROR: -452 Socket receive failed.

36 20849 [iot_thread] [ERROR] Failed to receive data over network. bytesReceived=-1
37 20849 [iot_thread] [ERROR] A single byte was not read from the transport: transportStatus=-1.
38 20849 [iot_thread] [ERROR] CONNACK recv failed with status = MQTTRecvFailed.
39 20849 [iot_thread] [ERROR] MQTT connection failed with status = MQTTRecvFailed.
40 20850 [iot_thread] [ERROR] Failed to establish MQTT connection: Server=a2m3gcrxudnep8-ats.iot.ap-south-1.amazonaws.com, MQTTStatus=MQTTRecvFailed
41 20900 [iot_thread] [INFO] Demo failed at iteration 3.
42 20900 [iot_thread] [INFO] Short delay before starting the next iteration.... 
43 25901 [iot_thread] [INFO] Demo run failed with 3 failed loops out of total 3 loops. RequiredSuccessCounts=2.
44 25901 [iot_thread] [INFO ][DEMO][25901] memory_metrics::freertos_heap::before::bytes::74448

45 25901 [iot_thread] [INFO ][DEMO][25901] memory_metrics::freertos_heap::after::bytes::60040

46 25902 [iot_thread] [INFO ][DEMO][25902] memory_metrics::demo_task_stack::before::bytes::2736

47 25902 [iot_thread] [INFO ][DEMO][25902] memory_metrics::demo_task_stack::after::bytes::1504

48 26903 [iot_thread] [ERROR][DEMO][26903] Error running demo.

Device disconnected from the AP on application's request 
49 26915 [iot_thread] Wi-Fi Disconnected.

50 26920 [iot_thread] [INFO ][INIT][26920] SDK cleanup done.

51 26920 [iot_thread] [INFO ][DEMO][26920] -------DEMO FINISHED-------

Please guide in solving issue faced.

Answer

I've noticed in the logs that you followed the [First Steps](https://docs.aws.amazon.com/freertos/latest/userguide/freertos-prereqs.html) and changed IoT endpoint. Double check that you also added the Thing name `clientcredentialIOT_THING_NAME` and that you generated the `demos/includes/aws_clientcredential_keys.h` files with you device certs and private key.

If this looks ok, try to connect with your device certificate from your laptop with MQTT client of your choice, for example `mosquitto_pub`
Test if you can establish an TLS connection:
```
openssl s_client -connect YOURIOTENDPOINT.iot.aws-region.amazonaws.com:8883 -CAfile AWSCAROOT.pem -cert YOURDEVCECERT.pem -key YOURDEVICEKEY.pem
```
if this works try to publish an MQTT message:
```
mosquitto_pub -t YOURTOPIC -m '{"msg":"Hello"}' --key YOURDEVICEKEY.pem --cert YOURDEVCECERT.pem --cafile AWSCAROOT.pem -h YOURIOTENDPOINT.iot.aws-region.amazonaws.com -p 8883 -d -i YOURCLIENTID
```
If you don't have the AWS CA `AWSCAROOT.crt`, you can download it here:
```
curl https://www.amazontrust.com/repository/AmazonRootCA1.pem > ca.pem
```

If this works, the AWS IoT is configured correctly. To further diagnose the problem, enable `DEBUG` logging on AWS IoT by following the steps in [Configure AWS IoT logging](https://docs.aws.amazon.com/iot/latest/developerguide/configure-logging.html) and follow this guide to diagnose your connectivity problem [Diagnosing Connectivity Issues](https://docs.aws.amazon.com/iot/latest/developerguide/diagnosing-connectivity-issues.html)

AWS IoT MQTT for TI CC3235SF

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