Really appreciate your response! 1. I can see your printf going to UART3(PD8) now though I still don't understand how the UART3 mapped to printf().  2. I changed it to static IP, but ping still failed with "ping: sendto: Host is down". I am using the...

Hi I am interested in your project, but am a newbie in the STM32CubeIDE platform. I am able to import and build your project now but don't what I can see from the project. Does the project use DHCP or Static IP? How to check and change it? In additio...