HummingBird Evaluation Kit¶
Nuclei have customized a FPGA evaluation board (called Hummingbird Evaluation Kit), which can be programmed with HummingBird SoC FPGA bitstream.
Click HummingBird FPGA Evaluation Kit Board Documents to access the documents of this board.
Follow the guide in HummingBird FPGA Evaluation Kit Board Documents to setup the board, make sure the following items are set correctly:
Use Hummingbird debugger to connect the MCU-JTAG on board to your PC in order to download and debug programs and monitor the UART message.
Power on the Board using USB doggle.
The HummingBird SoC FPGA bitstream with Nuclei RISC-V evaluation core inside is programmed to this board.
Following steps in board user manual to setup JTAG drivers for your development environment
How to use¶
For HummingBird Evaluation board:
DOWNLOAD support all the modes list in DOWNLOAD
You can find linker scripts for different download modes in
If you want to change ILM or DLM size in link script file, you can adapt it according to your Core information.
CORE support all the cores list in CORE
To run this application in HummingBird Evaluation board in Nuclei SDK, you just need to use this SOC and BOARD variables.
# Clean the application with DOWNLOAD=ilm CORE=n307 make SOC=hbird BOARD=hbird_eval DOWNLOAD=ilm CORE=n307 clean # Build the application with DOWNLOAD=ilm CORE=n307 make SOC=hbird BOARD=hbird_eval DOWNLOAD=ilm CORE=n307 all # Upload the application using openocd and gdb with DOWNLOAD=ilm CORE=n307 make SOC=hbird BOARD=hbird_eval DOWNLOAD=ilm CORE=n307 upload # Debug the application using openocd and gdb with DOWNLOAD=ilm CORE=n307 make SOC=hbird BOARD=hbird_eval DOWNLOAD=ilm CORE=n307 debug
You can change the value passed to CORE according to the Nuclei Evaluation Core the HummingBird SoC you have.
You can also change the value passed to DOWNLOAD to run program in different modes.
The FreeRTOS and UCOSII demos maybe not working in
flashxipdownload mode in HummingBird board due to program running in Flash is really too slow. If you want to try these demos, please use