xuos-web/docs/doc/appdev/debug/JLink-KD233.md

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# 调试XiUOS的技巧使用JLink调试KD233开发板
# 调试环境
**操作系统:** ubuntu18.04 [ https://ubuntu.com/download/desktop](https://ubuntu.com/download/desktop)
调试工具JLink实物如图
![img](https://img-blog.csdnimg.cn/20210427215116310.png)
调试开发板KD233实物如图
![img](https://img-blog.csdnimg.cn/20210430203005560.png)
# 调试步骤
## 步骤一
1.下载JLink驱动Ubuntu下载DEB包
下载地址:[SEGGER - The Embedded Experts - Downloads - J-Link / J-Trace](https://www.segger.com/downloads/jlink),[推荐下载地址 http://xuos.io/downloads/JLink_Linux_V720_x86_64.deb](http://xuos.io/downloads/JLink_Linux_V720_x86_64.deb)
![img](https://img-blog.csdnimg.cn/20210427214025688.png)
2.安装JLink驱动
```bash
$ dpkg -i JLink_Linux_V632i_x86_64.deb
```
V后面为版本号以下载的为准安装完成后将JLink连接到计算机运行JLinkExe检查其驱动是否已经正确安装如果是将看到以下信息
```bash
$ JLinkExe
SEGGER J-Link Commander V7. 0a (Compiled Apr 16 2021 15:36:25)
DLL version V7.00a, compiled Apr 16 2021 15:36:09
Connecting to J-Link via USB...O.K.
Firmware: J-Link OB-K22-SiFive compiled Mar 3 2021 14:13:05
Hardware version: V1.00
S/N: 979015641
VTref=3.300V
Type "connect" to establish a target connection, '?' for help
J-Link>
```
## 步骤二
1.安装openocd下载Ubuntu版本64位
下载地址:[Releases · kendryte/openocd-kendryte (github.com)](https://github.com/kendryte/openocd-kendryte/releases),推荐下载地址为:[http://xuos.io/downloads/kendryte-openocd-0.2.3-ubuntu64.tar.gz](http://xuos.io/downloads/kendryte-openocd-0.2.3-ubuntu64.tar.gz)
![img](https://img-blog.csdnimg.cn/20210427214045491.png)
2.安装openocd
```bash
$ sudo apt install libusb-dev libftdi-dev libhidapi-dev
$ sudo mv kendryte-openocd-0.2.3-ubuntu64.tar.gz /opt
$ cd /opt
$ sudo tar -zxvf kendryte-openocd-0.2.3-ubuntu64.tar.gz
```
3.修改openocd的配置文件
```bash
$ sudo vim /opt/kendryte-openocd/tcl/openocd.cfg
```
![img](https://img-blog.csdnimg.cn/20210501164846463.png)
</br>
序列号从JLink的背面标签可以查看也可以在JLink连接计算机后敲击JLinkExe命令看到。
4.打开openocd执行以下命令开始调试
```bash
$ cd /opt/kendryte-openocd
$ ./bin/openocd -f ./tcl/openocd.cfg
```
注意这一步如果报出Error重新插拔JLink解决
## 步骤三
1.步骤二打开openopcd后继续运行gdb
```bash
$ riscv-none-embed-gdb (workspace)/build/XiUOS_kd233.elf --eval-command="target remote 127.0.0.1:3333"
```
其中workspace为实际操作的XiUOS项目的绝对路径XiUOS_kd233.elf是编译生成的文件。
127.0.0.1表示本地IP地址也可以指定远程地址。
3333是openocd监听的端口号。成功连接openocd后就可以使用load、break、continue等gdb命令来调试了。