Documentation
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Overview ¶
Shell shows how to use the Embedded Go virtual filesystem.
Two different filesystems are used here. First one is the console filesystem you can find in fs/termfs package. It implemnts os.Stdin and os.Stdout files as the Go runtime expects. The second one is the in RAM filesystem you can find in the fs/ramfs package. This program allows to mount a mulitple such filesystems and work with files through them (little RAM doesn't allow too much).
Since the STM32L476 has little RAM, the board/init package uses a simplified console filesystem (termfs.LightFS) by default. The simple console provided doesn't support neither CR/LF conversion nor remote echo. Use options of your terminal emulator to provide local echo and convert CR and LF chars properly. The working example for Linux is:
picocom -b 115200 --echo --imap lfcrlf --omap crlf /dev/ttyACM0
Example:
date!> date 1970-01-01 00:33:23 UTC date!> help date date date YYYY-MM-DD hh:mm:ss date!> date 2023-04-06 13:15:11 > date 2023-04-06 13:15:19 UTC > help mount mount mount FSTYPE(FSARGS) PREFIX Supported filesystems: ramfs(SIZE[,NAME]) in RAM file system > mount ramfs(512,FS1) /myfs > mount ramfs(100,FS2) /mnt/fs2 > mount prefix fstype fsname opencnt available used ---------------------------------------------------------------------------- /dev/console lterm USART2 2 0 -1 /myfs ram FS1 0 512 0 /mnt/fs2 ram FS2 0 100 0 > echo Hello World >/myfs/file1.txt > mount prefix fstype fsname opencnt available used ---------------------------------------------------------------------------- /dev/console lterm USART2 2 0 -1 /myfs ram FS1 0 428 84 /mnt/fs2 ram FS2 0 100 0 > ls /myfs -rw-rw-rw- 13 2023-04-06 13:16:25 UTC file1.txt > cat /myfs/file1.txt Hello World >
Source Files