HiFive Unleashed

Overview

The HiFive Unleashed is a development board with a SiFive FU540-C000 multi-core 64bit RISC-V SoC.

Programming and debugging

Building

Applications for the hifive_unleashed board configuration can be built as usual (see Building an Application) using the corresponding board name:

# From the root of the zephyr repository
west build -b hifive_unleashed/fu540/e51 samples/hello_world

# From the root of the zephyr repository
west build -b hifive_unleashed/fu540/u54 samples/hello_world

Flashing

Current version has not yet supported flashing binary to onboard Flash ROM.

This board has USB-JTAG interface and this can be used with OpenOCD. Load applications on DDR and run as follows:

openocd -c 'bindto 0.0.0.0' \
        -f boards/riscv/hifive_unleashed/support/openocd_hifive_unleashed.cfg
riscv64-zephyr-elf-gdb build/zephyr/zephyr.elf
(gdb) target remote :3333
(gdb) c

Debugging

Refer to the detailed overview about Application Debugging.