Linux on a $0.15 CH32V003 RISC-V microcontroller #RISCV #Linux

The linux-ch32v003 project enables the low cost CH32V003 microcontroller to run Linux. It achieves this by using an 8 megabyte SPI PSRAM chip and a RISC-V emulator (the very nice mini-rv32ima by cnlohr). The emulation is needed because the PSRAM cannot be mapped into the address space of the microcontroller. The Linux kernel and rootfs is loaded into PSRAM at boot from an SD card. FAT filesystem access is provided by the Petit FatFs library.

The project is under a permissive MIT license. You can see more including the source on GitHub.


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