This library contains micro-layer for Pico]OS.
Currently it contains:
- File system abstraction layer
- FAT filesystem from elm-chan.org
- ROM filesystem (can be flashed into MCU)
- MMC/SD card support (SPI mode)
- microsecond spin-wait function
- diagnostic functions about Pico]OS resource usage
- HAL stuff for msp430 5xx/6xx families (compiled only for msp430 port)
There is a spiffs addon in picoos-micro-spiffs library.
For more info, see this blog entry or manual.