APM32F103 WinUSB/CDC 虚拟串口示例 / APM32F103 WinUSB/CDC Virtual COM Port Example

中文 | English

中文说明

本项目基于 APM32F10x SDK V1.8，演示 APM32F103 USB Device 枚举为 CDC 虚拟串口，并与 Windows 主机进行数据通信。

示例功能

• APM32F103 枚举为 USB CDC 虚拟串口
• PC 通过串口工具发送数据
• 设备接收数据后原样回传
• 提供 USB Device 库、描述符及 CDC 示例源码

开发环境

项目	信息
目标板	APM32F103 MINI
SDK	APM32F10x SDK V1.8
示例版本	V1.0.3
MDK	MDK-ARM V5.36
IAR	EWARM V8.50.5.26295
示例目录	Examples/USB/USB_CDC_VirtualCOMPort

使用方法

1. 打开 Project/MDK/USB_CDC_VirtualCOMPort.uvprojx。
2. 检查 USB 引脚、时钟和目标器件配置。
3. 编译并下载程序至 APM32F103 MINI。
4. 通过 USB 将开发板连接到 Windows PC。
5. 在设备管理器中确认虚拟串口枚举成功。
6. 使用串口工具打开对应端口并发送数据，设备应回传相同内容。

注意事项

• 若系统未自动识别设备，请检查 USB 描述符、驱动绑定及 Windows 设备管理器状态。
• 修改 VID、PID 或接口描述符后，可能需要重新安装或更新主机端驱动。
• 本示例用于参考和开发验证，量产应用应补充异常恢复、缓冲区管理及 USB 合规性测试。

技术支持

更多产品资料与技术支持请访问：www.geehy.com。

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English

Based on APM32F10x SDK V1.8, this project demonstrates how an APM32F103 USB device enumerates as a CDC Virtual COM Port and communicates with a Windows host.

Features

• APM32F103 enumerates as a USB CDC Virtual COM Port
• A PC serial utility sends data to the device
• The device echoes received data back to the host
• USB device libraries, descriptors, and CDC example sources are included

Development environment

Item	Information
Target board	APM32F103 MINI
SDK	APM32F10x SDK V1.8
Example version	V1.0.3
MDK	MDK-ARM V5.36
IAR	EWARM V8.50.5.26295
Example directory	Examples/USB/USB_CDC_VirtualCOMPort

Usage

1. Open Project/MDK/USB_CDC_VirtualCOMPort.uvprojx.
2. Verify the USB pins, clocks, and target-device configuration.
3. Build and program the example to an APM32F103 MINI.
4. Connect the board to a Windows PC through USB.
5. Confirm that the Virtual COM Port enumerates in Device Manager.
6. Open the corresponding port in a serial utility and send data. The device should echo the same data.

Notes

• If the device is not recognized automatically, check the USB descriptors, driver binding, and Windows Device Manager status.
• Changing the VID, PID, or interface descriptors may require reinstalling or updating the host driver.
• This example is for reference and development validation. Production applications should add error recovery, buffer management, and USB compliance testing.

Support

For product information and technical support, visit www.geehy.com.