Zephyr SDK Glue

HPMicro's Zephyr RTOS Adaptation for RISC-V MCUs

Features • Boards • Quick Start • Docs • License

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📖 Overview

Zephyr SDK Glue is a manifest repository developed by HPMicro based on the Zephyr project. This repository contains all source program files adapted by HPMicro for its own MCUs in the Zephyr project. Together with HPMicro's official software development kit (SDK), it forms the HPMicro chip development suite for the Zephyr project.

This repository is bound to Zephyr v3.7.0 (LTS) and undergoes related iterations on this version basis.

✨ Features

Feature	Description
Independent Manifest	Uses its own manifest file, fetching all source code starting from the Glue repository
Direct HPM_SDK Integration	No Zephyr HAL repository required, developed directly based on HPM_SDK
LTS Version Binding	Bound to Zephyr v3.7.0 LTS for long-term stability
Docker Support	Ready-to-use Docker development environment
MCUboot Support	Bootloader support for secure firmware updates

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🎯 Supported Boards

Board	SoC	Features
hpm6200evk	HPM6280
hpm6750evk2	HPM6750
hpm6800evk	HPM6880
hpm6e00evk	HPM6E80

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🔌 Supported Peripherals

Peripheral	Driver	Description
ADC	adc	ADC12 and ADC16 support
CAN	can	MCAN controller support
Clock	clock_control	Clock management
Display	display	RGB, MIPI DSI, LVDS display support
Video	video	DVP and MIPI CSI camera support
DMA	dma	DMA controller support
Ethernet	ethernet	Ethernet MAC support
GPIO	gpio	GPIO controller support
I2C	i2c	I2C controller support
IOC	pinctrl	Pin multiplexing control
PWM	pwm	PWM and PWMv2 support
SDHC	sdhc	SD/MMC host controller support
UART	serial	UART support
SPI	spi	SPI controller support
USB	usb	USB device and host (UDC/CherryUSB)

🚀 Quick Start

Prerequisites

• Zephyr SDK 0.16.5+
• Python 3.8+
• CMake 3.20+
• Ninja build system

Build with West

# Initialize workspace
west init -m https://github.com/hpmicro/sdk_glue.git zephyr_hpmicro
cd zephyr_hpmicro
west update
west supply

# Build hello_world example
west build -p always -b hpm6750evk2 zephyr/samples/hello_world

# Flash to board
west flash

Build with CMake

cmake -GNinja -B build -DBOARD=hpm6750evk2 zephyr/samples/hello_world
ninja -C build

Use -S ${snippet} to specify hardware configuration snippets for specific samples.

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📁 Directory Structure

sdk_glue/
├── 📂 boards/      # Board and shield support files
├── 📂 cmake/       # CMake extensions
├── 📂 docs/        # Documentation
├── 📂 drivers/     # Zephyr standard driver files
├── 📂 dts/         # Devicetree files
├── 📂 include/     # Header files
├── 📂 modules/     # Additional modules (CherryUSB, etc.)
├── 📂 samples/     # Sample applications
├── 📂 snippets/    # Hardware configuration snippets
├── 📂 soc/         # SoC specific source
└── 📂 zephyr/      # Zephyr build definitions

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📚 Documentation

Document	Description
📖 Linux Getting Started	Build environment setup on Linux
📖 Windows Getting Started	Build environment setup on Windows
🐳 Docker Getting Started	Using Docker development environment
🔧 Toolchain Guide	Toolchain configuration (Zephyr SDK / ZCC)

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📄 License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

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