Nuttx start script

1. defconfig's config

CONFIG_FS_READABLE=y

CONFIG_FS_WRITABLE=y

CONFIG_FS_FAT=y (rcS file used mkfatfs command)

CONFIG_FS_ROMFS=y

CONFIG_NSH_ROMFSETC=y

CONFIG_NSH_ROMFSMOUNTPT="/etc" (default value)

CONFIG_NSH_INITSCRIPT="init.d/rcS" (default value)

CONFIG_NSH_ROMFSDEVNO=0 (default value)

CONFIG_NSH_ROMFSSECTSIZE=128

CONFIG_NSH_ARCHROMFS=y (use stm32f429i-disco/include/nsh_romfsimg.h)

MORE INFO

2.etc directory

3. generate ROMFS

$ genromfs -f romfs_img -d etc

$ xxd -i romfs_img > nsh_romfsimg.h

copy nsh_romfsimg.h to configs/stm32f429i-disco/include directory