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This repository hosts the project for open-source Hummingbirdv2 E203 RISC-V processor Core and SoC, it's developped and opensourced byNuclei System Technology, the leading RISC-V IP and Solution company based on China Mainland.

This's an upgraded version of the project Hummingbird E203 maintained inSI-RISCV/e200_opensource, so we call it Hummingbirdv2 E203, and its architecture is shown in the figure below.

In this new version, we have following updates.

• Add NICE(Nuclei Instruction Co-unit Extension) for E203 core, so user could create customized HW co-units with E203 core easily.
• Integrate the APB interface peripherals(GPIO, I2C, UART, SPI, PWM) fromPULP Platform into Hummingbirdv2 SoC, these peripherals are implemented in Verilog language, so it's easy for user to understand.
• Add new development boards(Nuclei ddr200t and mcu200t) support for Hummingbirdv2 SoC.

Welcome to visithttps://github.com/riscv-mcu/hbird-sdk/ to use software development kit for the Hummingbird E203.

Welcome to visithttps://www.rvmcu.com/community.html to participate in the discussion of the Hummingbird E203.

Welcome to visithttp://www.rvmcu.com/ for more comprehensive information of availiable RISC-V MCU chips and embedded development.

We have provided very detailed introduction and quick start-up documents to help you ramping it up.

The detailed introduction and the quick start documentation can be seenfromhttps://doc.nucleisys.com/hbirdv2/.

By following the guidences from the doc, you can very easily start to use Hummingbirdv2 E203 processor Core and SoC.

What are you waiting for? Try it out now!

In order to easy user to study RISC-V in a quick and easy way, we have made dedicated FPGA-Boards and JTAG-Debugger.

The detailed introduction and the relevant documentation can be seen fromhttps://nucleisys.com/developboard.php.

Clickhttps://github.com/riscv-mcu/hbird-sdk for software development kit.

• Many people asked if this core and SoC can be commercially used, the answer as below:
  • According to the Apache 2.0 license, this open-sourced core can be used in commercial way.
  • But the feature is not full.
  • The main purpose of this open-sourced core is to be used by students/university/research/and entry-level-beginners, hence, the commercial quality (bug-free) and service of this coreis not not not warranted!!!

This isrelease 0.2.1 of Hummingbirdv2.

• Hbirdv2 SoC

  • Covert the peripheral IPs implemented in system verilog to verilog implementation.

• SIM

  • Add new simulation tool(iVerilog) and wave viewer(GTKWave) support for Hummingbirdv2 SoC

This isrelease 0.1.2 of Hummingbirdv2.

• Hbirdv2 SoC

  • Remove unused module
  • Add one more UART

• FPGA

  • Add new development board(Nuclei mcu200t) support for Hummingbirdv2 SoC

This isrelease 0.1.1 of Hummingbirdv2.

NOTE:

• This's an upgraded version of the project Hummingbird E203 maintained inSI-RISCV/e200_opensource.
• Here are the new features of this release.
  • Add NICE(Nuclei Instruction Co-unit Extension) for E203 core
  • Integrate the APB interface peripherals(GPIO, I2C, UART, SPI, PWM) from PULP Platform
  • Add new development board(Nuclei ddr200t) support for Hummingbirdv2 SoC.