Hi Team,
I am currently working on a project involving the STM32F407G microcontroller, where I have configured MQTT to connect to a server. However, I am encountering persistent issues and have been unable to establish a successful connection.
The specific error messages I receive are:
- mqtt_connect return -10
- Publish err: -1
- mqtt_connection_cb: Disconnected, reason: 256
My setup includes:
- No RTOS
- Ethernet communication through the ENC28J60 controller
Despite spending over a week troubleshooting, I have been unable to resolve these issues. I have attached the relevant sections of my code for your reference. Could someone please provide guidance or suggestions on how to overcome these errors?
Best Regards,
Gagan Gowda
