Hummingbirdv2 E203 Core and SoC
===============================
[](https://doc.nucleisys.com/hbirdv2)
About
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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 by [Nuclei System Technology](www.nucleisys.com), the leading RISC-V IP and Solution company based on China Mainland.
This's an upgraded version of the project Hummingbird E203 maintained in [SI-RISCV/e200_opensource](https://github.com/SI-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) from [PULP Platform](https://github.com/pulp-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 visit https://github.com/riscv-mcu/hbird-sdk/ to use software development kit for the Hummingbird E203.**
**Welcome to visit https://www.rvmcu.com/community.html to participate in the discussion of the Hummingbird E203.**
**Welcome to visit http://www.rvmcu.com/ for more comprehensive information of availiable RISC-V MCU chips and embedded development.**
Detailed Introduction and Quick Start-up
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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 seen
from https://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!
Dedicated FPGA-Boards and JTAG-Debugger
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In order to easy user to study RISC-V in a quick and easy way, we have made dedicated FPGA-Boards and JTAG-Debugger.
#### Nuclei ddr200t development board
#### Nuclei mcu200t development board
#### Hummingbird Debugger

The detailed introduction and the relevant documentation can be seen from https://nucleisys.com/developboard.php.
HummingBird SDK
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Click https://github.com/riscv-mcu/hbird-sdk for software development kit.
Release History
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#### Notice
* **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 core
is not not not warranted!!!
#### Release 0.2.1, Feb 26, 2021
This is `release 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
#### Release 0.1.2, Nov 20, 2020
This is `release 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
#### Release 0.1.1, Jul 28, 2020
This is `release 0.1.1` of Hummingbirdv2.
NOTE:
+ This's an upgraded version of the project Hummingbird E203 maintained in
[SI-RISCV/e200_opensource](https://github.com/SI-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.