OS/J5 - small real-time operating system
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current ports:
i386
stm32f1
stm32f4
current device support i386:
serial, video, keyboard, ide, rtc
current device support stm32:
gpio, adc, timer, serial, i2c, spi, dma, rng, ccm
on-chip flash (for filesystem)
sdcard
assorted oled/lcd displays
filesystems:
FAT
FLFS (flash optimized log-structured)
there are not currently any plans to have anything like that built in