Hello, I am trying to make a norflash flash loader by developing stm32f429zit6, M29W256GL custom board.I'm struggling with a lack of data.I would like to refer to a sample based on cubemx.Are there any documentation and sample sources that could help...

I am trying to load the m29w256gh nor flash on the stm32f429zi mcu. I'm trying to create an external loader file, please advise. I checked the m29w128g sample, but the MCU and 256g model are not compatible. help me =(