STM32MP157A-DK1_U-boot compilation

[tam7]

Hi

I'm new to embedded software development and STM32 too.I'm just wanna learn and explore everything about the STM32 MPU. I have STM32MP157A-DK1 board with me. So i planned to do this one as first.I want to make a custom u-boot compilation for the STM32MP157A-DK1 board. Only using the U-boot i want to run a small application.(without OS) if anyone guide me to get in that.


before this what are the possible way to connect this board with my system. I tried through USART GPIO14 tx pin no 8 and GPIO15 rx pin 10  not able to connect.(I have OS)