NuttX is evolving all the time and although I created a video tutorial at NuttX Channel explaining how to create a RAMDISK, that information is already outdated.
Let’s do it again using the current NuttX version (9.1)
First select the needed options at menuconfig:
Device Drivers --->
[*] RAM disk wrapper (mkrd)
Board Selection --->
[*] Enable boardctl() interface
[*] Enable application space creation of RAM disks
File Systems --->
[*] FAT file system
Compile it and run these commands when NuttX’s nsh show up on serial console:
NuttShell (NSH) NuttX-9.1.0 nsh> ? help usage: help [-v] [] . cd echo hexdump mkrd pwd test usleep [ cp exec kill mh rm time xd ? cmp exit ls mount rmdir true basename dirname false mb mv set uname break dd free mkdir mw sleep umount cat df help mkfatfs ps source unset Builtin Apps: sh nsh nsh> mkrd 64 nsh> ls /dev /dev: console null ram0 <--- ttyS0 nsh> mkfatfs /dev/ram0 nsh> mount -t vfat /dev/ram0 /mnt nsh> echo "This is a file in RAMDISK" > /mnt/file.txt nsh> cat /mnt/file.txt This is a file in RAMDISK nsh>
Interesting. NuttX is maturing into significant capabilities. I can envision situations that could need for small file systems like this.
Hi Celem, I think you missed the NuttX Online Workshop, there you could see that NuttX is very mature. In fact it has more features than even commercial RTOSes. Please take a look, the link for each presentation is at the pinned comment: