Dear team,
I am facing an issue where my device disconnects and drops the ping whenever the master device tries to connect with RS-485 Devices. after some "request timeout" error the device goes into a hard fault.
The application runs on STM32F407VET6 + LAN8742 Ethernet PHY + Free RTOS
3 Task, 2 Message Queue used in this application
USART is used as interrupt mode - after receiving complete data, data is put into the message Queue
Total 3 tasks running on the same priority -osPriorityNormal
Task1- Handle TCP: put data into the Message Queue
Task2- data conversion: get data from the Message Queue
Task3- Handle HTTP request
Master Device/Software: Modscan32, PLC
Slave Devices (RS-485 Devices): Digital inputs, Digital Outputs, Analog Input, Analog Output
Terminating resistor used at the starting of RS-485 Bus.
Please suggest any solution for this problem, your valuable input will be helpful to me.
Hoping to hear from you soon.
Thanks & Regards,
Rahul
