System Workbench for STM32

Hello Bernard,

First of all thank you very much for your answer. I have MAX485 module and hope to use it with STM32F746 board to implement Modbus-RTU. is it possible to use MAX485 module to implement Modbus-RTU on STM32F7?

Also I have not any idea about how to write program for LwIP and Modbus using STM32. Because of I'm totally beginner for STM. So I really appreciated you if you can provide some sample program for HTTP POST request and Modbus-RTU.

Thanks,
Dilanka.