rt-thread/bsp/hpmicro

HPMicro Board Support Package (BSP) Introduction

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Introduction

This document provides an overview of the HPMicro BSPs (Board Support Package) available in the RT-Thread repository. Each BSP is tailored for specific HPMicro development boards, offering necessary drivers and configurations to run RT-Thread seamlessly on RISC-V based HPMicro microcontrollers.

The document consists of the following parts:

• HPMicro BSP Overview
• Available BSPs
• Quick Start Guide
• Common Development Environment Setup
• References

By reading the Quick Start Guide section, developers can quickly get their hands on any HPMicro BSP and run RT-Thread on the board. Each individual BSP contains detailed documentation for specific board features and advanced usage.

Available BSPs

Below is a comprehensive list of HPMicro BSPs currently supported:

BSP Name	Supported Board	MCU	Description
hpm5300evk	HPM5300EVK	HPM5361	Development board for HPM5300 series
hpm5301evklite	HPM5301EVKLITE	HPM5301	Lite version development board for HPM5301
hpm5e00evk	HPM5E00EVK	HPM5E31	Development board for HPM5E00 series
hpm6200evk	HPM6200EVK	HPM6200	Development board for HPM6200 series
hpm6300evk	HPM6300EVK	HPM6360	Development board for HPM6300 series with Ethernet support
hpm6750evk	HPM6750EVK	HPM6750	Development board for HPM6750 series with dual-core RISC-V
hpm6750evk2	HPM6750EVK2	HPM6750	Second generation development board for HPM6750 series
hpm6750evkmini	HPM6750EVKMINI	HPM6750	Mini development board for HPM6750 series
hpm6800evk	HPM6800EVK	HPM6800	Development board for HPM6800 series
hpm6e00evk	HPM6E00EVK	HPM6E00	Development board for HPM6E00 series
hpm6p00evk	HPM6P00EVK	HPM6P00	Development board for HPM6P00 series

Quick Start Guide

Prerequisites

Before getting started with any HPMicro BSP, you need to prepare the following development environment:

1. RT-Thread ENV

• Download and install RT-Thread ENV

2. RISC-V Toolchain

• Download the RISC-V toolchain: riscv32-gnu-toolchain
• Extract it to a specified directory, for example: C:\DevTools\riscv32-gnu-toolchain
• Set environment variable RTT_RISCV_TOOLCHAIN to <TOOLCHAIN_DIR>\bin
  • For example: C:\DevTools\riscv32-gnu-toolchain\bin

3. OpenOCD for HPMicro

• Download OpenOCD: rtt-debugger-support-package
• Extract it to a specified directory, for example: C:\DevTools\openocd-hpmicro
• Set environment variable OPENOCD_HPMICRO to <OPENOCD_HPMICRO_DIR>\bin
  • For example: C:\DevTools\openocd-hpmicro\bin

Getting Started with a Specific BSP

1. Navigate to the desired BSP directory:

   cd rt-thread/bsp/hpmicro/<bsp_name>
   

2. Configure the project:

   • Open RT-Thread ENV command-line
   • Change directory to the BSP directory
   • Run menuconfig to configure the project

3. Build the project:

   scons -jN  # N equals to the number of CPU cores
   

4. Hardware Connection:

   • Switch BOOT pin to 2'b00
   • Connect the PWR_DEBUG port to PC via TYPE-C cable

5. Download and Debug:

   • Use the provided OpenOCD scripts for downloading and debugging
   • Refer to individual BSP README files for specific commands

Running Results

Once the project is successfully downloaded, the system runs automatically. The LED on the board will flash periodically.

Connect the serial port of the board to the PC, communicate with it via a serial terminal tool (115200-8-1-N). Reset the board and the startup information of RT-Thread will be observed:

 \ | /
- RT -     Thread Operating System
 / | \     5.2.2 build Aug 16 2025 18:18:18
 2006 - 2025 Copyright by RT-Thread team
msh >

Common Peripheral Support

Most HPMicro BSPs support the following peripherals:

On-board Peripherals	Support	Note
USB	√
QSPI Flash	√
GPIO	√
SPI	√
I2C	√
UART	√
PWM	√
RTC	√
On-Board Debugger	√	ft2232

Additional peripherals may be supported depending on the specific board:

• Ethernet: Available on
  • HPM6300EVK
  • HPM6750EVK
  • HPM6750EVK2
  • HPM6750EVKMINI + ART-Pi Industry IO extension
  • HPM6800EVK
  • HPM6E00EVK
  • HPM6P00EVK
  • HPM5E00EVK
• CAN: Available on HPM6750 series Development Boards, HPM5300EVK, HPM6800EVK, HPM6E00EVK, HPM6P00EVK and HPM5E00EVK
• SDIO: Available on HPM6300EVK, HPM6750EVKMINI, HPM6750EVK, HPM6750EVK2 and HPM6800EVK
• Display/Audio: Available on HPM6750EVK, HPM6800EVK, HPM6E00EVK，HPM6P00EVK

Development Environment Setup

Using Command Line Tools

1. Set up the environment variables as described in the Prerequisites section
2. Use scons for building
3. Use OpenOCD and GDB for debugging or use the Ozone + JLink for debugging

Individual BSP Documentation

Each BSP contains its own detailed README file with:

• Board-specific hardware information
• Peripheral configuration details
• Specific download and debug commands
• Advanced features and examples

Please refer to the individual BSP directories for detailed documentation:

• hpm5300evk/README.md
• hpm5301evklite/README.md
• hpm5e00evk/README.md
• hpm6200evk/README.md
• hpm6300evk/README.md
• hpm6750evk/README.md
• hpm6750evk2/README.md
• hpm6750evkmini/README.md
• hpm6800evk/README.md
• hpm6e00evk/README.md
• hpm6p00evk/README.md

Troubleshooting

Common Issues

1. Toolchain not found: Ensure RTT_RISCV_TOOLCHAIN environment variable is set correctly
2. OpenOCD connection failed: Check USB connection and driver installation
3. Build errors: Verify all dependencies are installed and environment variables are set
4. Serial communication issues: Check baud rate (115200) and COM port settings

Getting Help

• Check the individual BSP README files for board-specific issues
• Visit RT-Thread Community
• Refer to RT-Thread Documentation

References

• RT-Thread Document Center
• RT-Thread ENV
• HPMicro Official Website
• HPMicro SDK Documentation
• RISC-V Toolchain

Contributing

Contributions to enhance existing BSPs or add new ones are welcome. Please follow the RT-Thread contribution guidelines and ensure that your BSP adheres to the project's standards.

For contributing to HPMicro BSPs:

1. Fork the RT-Thread repository
2. Create a feature branch
3. Make your changes following the existing code style
4. Test your changes thoroughly
5. Submit a pull request with a clear description

License

This BSP is released under the RT-Thread license.