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CCS/DK-TM4C129X: MQTT stack on lwip stack

Part Number: DK-TM4C129X

Tool/software: Code Composer Studio

I'm using the TM4C129x dev kit. Now I would like to implement a mqtt stack on the tivaware enet_lwip example (NON-OS).

My problem is that I'm struggling to figure out where to put the mqtt functions like example_do_connect(), example_publish etc. on top of lwIP.

Would it be a good method to put the mqtt "high level" date processing in the lwIPHostTimerHandler function?

If not, could you please give me some advices what would be a good first version implementation for NON-OS?

Regards,

Frank

  • Hello Frank,

    We do not have support for MQTT on the TM4C129x devices, and the only posts I've seen from community members who have had success using MQTT did so by leveraging the TI-RTOS examples for TCP.

    Here are a few threads you can reference to possibly get some ideas about how RTOS-specific implementation is done (they didn't offer a lot of detail but it's something):

    e2e.ti.com/.../2064820

    e2e.ti.com/.../614435

    Unfortunately, we are not able to support a non TI-RTOS implementation on MQTT, but perhaps those threads will arm you with the knowledge you need to know.