README.md

NOTE REPOSITORY HAS MOVED

REPOSITORY URL: https://bitbucket.org/8bitgeek/briscits

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RISC "Real-Time" Preemptive Scheduler for RISC-V and ARM Micro-Controllers

API Documentation

Board Support

Prerequisite

RISCV GCC

Git Repository

https://github.com/riscv/riscv-gnu-toolchain

Pre-compiled binary for 64-bit ARM (aarch64) Linux Host

./configure --prefix=/opt/riscv --with-arch=rv32i --with-abi=ilp32 --enable-multilib

riscv32-unknown-elf-gcc-aarch64-11.1.0.tar.gz

RISCV OpenOCD

Git Repository

https://github.com/riscv/riscv-openocd

Pre-compiled binary for 64-bit ARM (aarch64) Linux Host

riscv-openod-0.00.0-aarch64.tar.gz

Initialize

git clone https://github.com/8bitgeek/briscits.git
cd briscits

Environment Setup

Prior to compiling for a particular CPU target, some environment variables need to be set up.

• BRISC_CPU should reference one of the CPU support packages under the cpu/ folder.
• BRISC_GCC should contain the 'gcc' compiler prefix.
• BRISC_CFLAGS should contains compiler flags for instance "-ggdb" or "-Os"

RISC-V

export BRISC_CPU=riscv/BumbleBee/RV32IMAC
export BRISC_GCC=riscv32-unknown-elf

export BRISC_CPU=riscv/Qingke/RV32IMAC
export BRISC_GCC=riscv32-unknown-elf

Cortex-M7

export BRISC_CPU=arm/cortex-m7
export BRISC_GCC=arm-none-eabi

Debug

export BRISC_CFLAGS=-ggdb

Release

export BRISC_CFLAGS=-Os

Compiling libbrisc.a

make