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HummingBird RISC-V Software Development Kit

Build Documentation Build SDK

HummingBird RISC-V Software Development Kit(HBird SDK) is developed for developing and evaluating software using our FPGA evaluation board.

HummingBird SDK Diagram

This HummingBird SDK is built based on the modified NMSIS framework, user can access all the APIs provided by modified NMSIS and also the APIs that provided by HummingBird SDK which mainly for on-board peripherals access such as GPIO, UART, SPI and I2C etc.

IMPORTANT NOTICE

We also intergated three RTOSes into HummingBird SDK, which are FreeRTOS, UCOSII and RTThread, you can easily find it in the OS folder.

Quick Startup

Wanner to a try with HummingBird SDK, click Quick Start with HummingBird SDK to start up.

Requirements

Directory Structure

Here is the directory structure for this HummingBird SDK.

$HBIRD_SDK_ROOT
├── application
│   ├── baremetal
│   ├── freertos
│   ├── ucosii
│   └── rtthread
├── Build
│   ├── gmsl
│   ├── Makefile.base
│   ├── Makefile.conf
│   ├── Makefile.core
│   ├── Makefile.components
│   ├── Makefile.files
│   ├── Makefile.global
│   ├── Makefile.misc
│   ├── Makefile.rtos
│   ├── Makefile.rules
│   └── Makefile.soc
├── doc
│   ├── build
│   ├── source
│   ├── Makefile
│   └── requirements.txt
├── NMSIS
│   ├── Core
│   ├── DSP
│   ├── NN
│   └── Library
├── OS
│   ├── FreeRTOS
│   ├── UCOSII
│   └── RTThread
├── SoC
│   ├── hbird
│   └── hbirdv2
├── test
│   ├── core
│   ├── ctest.h
│   ├── LICENSE
│   └── README.md
├── LICENSE
├── Makefile
├── NMSIS_VERSION
├── README.md
├── setup.bat
└── setup.sh

How to use

  1. Create and modify your own setup config
    • For Linux, create setup_config.sh in $HBIRD_SDK_ROOT.
    • For Windows, create setup_config.bat in %HBIRD_SDK_ROOT%.
  2. Source the environment script right in HBIRD_SDK_ROOT
    • For Linux: source setup.sh
    • For Windows: setup.bat
  3. Build and run application.
    • Note: By default, the SoC and Board is set to hbirdv2 and ddr200t, if you don't pass any SOC and BOARD variable in Make command, it will use the default SoC and Board.
    • Assume that you will run this application -> application/baremetal/helloworld/.
    • cd application/baremetal/helloworld/
    • you can run make help to show help message.
    • We provided different processor core configurations(CORE=<your_core>) we supported, see Build/Makefile.core.
      • such as CORE=e203
    • We support three download modes(DOWNLOAD=<mode>) for different applications.
      • flashxip: Program will to be download into flash and run directly in Flash
      • flash: Program will be download into flash, when running, program will be copied to ilm/ram and run in ilm/ram
      • ilm: Program will be download into ilm/ram and run directly in ilm/ram, program lost when poweroff
    • For example, if you want to build your application for CORE=e203 DOWNLOAD=ilm, you can easily run this command:
      make CORE=e203 DOWNLOAD=ilm all
      
    • If you want to upload your application for CORE=e203 DOWNLOAD=ilm, you can easily run this command:
      make CORE=e203 DOWNLOAD=ilm upload
      
    • (Option 1)If you want to debug your application for CORE=e203 DOWNLOAD=ilm:
      • First open a new terminal in the same application folder and run: make CORE=e203 DOWNLOAD=ilm run_openocd
      • Then run this command make CORE=e203 DOWNLOAD=ilm run_gdb in the existing terminal, then you can debug it using gdb, if you want to load your program, you need to type load to achieve it.
      • Notice: Since version 0.2.4, you can also pass extra GDB_PORT=<portno>, to change to use new gdb port other than default 3333, for example, make CORE=e203 DOWNLOAD=ilm GDB_PORT=3344 run_openocd and make CORE=e203 DOWNLOAD=ilm GDB_PORT=3344 run_gdb
    • (Option 2)If you want to debug your application for CORE=e203 DOWNLOAD=ilm:
      make CORE=e203 DOWNLOAD=ilm debug
      
    • If you want to use UART terminal tool to view the UART message, you can choose screen or minicom in Linux, teraterm in Windows, the default UART baudrate we use is 115200.

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