STM32H743ZIT lwip problem, STM32CubeMX v6, and STM32CUBE FW_H7 V1.8.0, MDK uVision v5.35, ARM Compiler v6, OS not used

[DTsai.1]

Hello,

I make a Lwip project that was done on STM32CubeMX V6, and STM32CUBE FW_H7 V1.8.0. This project can't work when build with MDK uVision v5.35, ARM Compiler v6. When pinging the device, there is no response!

But it can work well after changed the Compiler to "ARM Compiler v5".

Please help as this is really confusing.

Thank you in advance for your help.

[alister]

You have to learn it. Read its docs. Break your project down into smaller parts. E.g. start with LED flash.