# openocd-gwu2x-driver

**Repository Path**: uyami/openocd-gwu2x-driver

## Basic Information

- **Project Name**: openocd-gwu2x-driver
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2025-09-02
- **Last Updated**: 2025-09-03

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## 为openocd添加gwu2x的驱动
    现阶段只支持JTAG的操作
    简略实现,基于libusb驱动
    未实现SWD模式驱动
        如果实现SWD操作,则需要更改gwu2x的IO模式

## 添加驱动的方案

## 连接MCU命令如下
    openocd -f link_gwu2x.cfg -f stm32f103.cfg

### 以下为快速添加的方案
#### 1.下载openocd现有的源码 (版本为9501b263e0ae127b012f5c5e3ba5dffcc7daa8d1) <2022-11-29>
#### 2.把gwu2x_usb.c 添加到 src/jtag/drivers/ 目录下
#### 3.在src/jtag/drivers/Makefile.am 中某个编译支持的驱动下添加驱动源码参加到编译上.如在 CMSIS_DAP_HID 中添加 "DRIVERFILES += %D%/gwu2x_usb.c"
    if CMSIS_DAP_HID
    DRIVERFILES += %D%/cmsis_dap_usb_hid.c
    DRIVERFILES += %D%/cmsis_dap.c
    DRIVERFILES += %D%/gwu2x_usb.c
    endif
#### 4.在src/jtag/interfaces.c 中添加驱动变量声明与引用.如添加 "extern struct adapter_driver gwu2x_adapter_driver;"与"&gwu2x_adapter_driver,"
    第一处
    #if BUILD_CMSIS_DAP_USB == 1 || BUILD_CMSIS_DAP_HID == 1
        extern struct adapter_driver cmsis_dap_adapter_driver;
        extern struct adapter_driver gwu2x_adapter_driver;
    #endif
    第二处
    #if BUILD_CMSIS_DAP_USB == 1 || BUILD_CMSIS_DAP_HID == 1
		&cmsis_dap_adapter_driver,
        &gwu2x_adapter_driver,
    #endif
#### 5.开始编译

### 一些问题
    1.没有找到相关配置时钟频率的指令