Controlling the pins of 150 MHz RISC-V development board without an operating system is significant step toward developing hardware. In this video walkthrough, we will look at one way to do this using SiFive FE310-G002 development kits, and SiFive’s Freedom Metal library. There is quite a bit of code here, so see the links before examples you can copy. RISC-V is short for (Reduced Instruction Set Architecture Five).