W25N01xxxIG Driver for STM32H7

[Zakba.1]

Hello, I have been trying to make a driver for the Winbond(W25N01GV)  NAND flash over QSPI(to use it in memory-mapped mode) but I've been failing so far. Can somebody give me some ideas about what I am doing wrong? I used W25Q256 before, but now I want to replace it with W25N01.

PS: If you know any working qspi driver I would be happy to send me the link.

[Tesla DeLorean · Accepted solution]

It's not going to work in Memory Mapped mode, it is NAND and accesses at a block level, and not byte addressable like NOR.

It is designed to work as mass storage. See BlackBox logger examples used on Flight Controller applications using STM32.

For Gbit NOR look at W25Q01G, MT25QL01, MX66L01G type parts

[Tesla DeLorean]

https://community.st.com/t5/stm32-mcus-products/stm32wb-qspi-flash-winbond-w25n01gv/m-p/607010#M227222