sfud# This chapter introduces the sfud function of LuatOS. You can select the corresponding chip to view the tutorial. air101 Introduction Hardware preparation Software part Initialization sfud Initialize with SPI ID Initialization using SPI DEVICE obtain the flash device information table. Read and write Flash Read and write directly to a specific address mount the sfud lfs file system Full Code air103 Introduction Hardware preparation Software part Initialization sfud Initialize with SPI ID Initialization using SPI DEVICE obtain the flash device information table. Read and write Flash Read and write directly to a specific address mount the sfud lfs file system Full Code air105 Introduction Hardware preparation Software part Initialization sfud Initialize with SPI ID Initialization using SPI DEVICE obtain the flash device information table. Read and write Flash Read and write directly to a specific address mount the sfud lfs file system Full Code