I am designing custom based on stm32f779nih6 microcontroller design. I was having doubt that after getting the board how should I start uploading the code to it?
Hello, the debugging/programming of STM32 is normally done with debug probe like ST-Link(like https://www.st.com/en/development-tools/stlink-v3set.html). Which can connect over SWD/JTAG pins. The ST-Link probe have support in standard IDEs like Keil/IAR/STM32CubeIDE. Second option can be usage on STM32 system bootloader. When enabled it can use different peripheries to upload code inside STM32. This is described in Application note AN2606.
