RT-Thread-MilkV Duo 使用 CK-Link DebugRT-Thread问答社区

MilkV Duo 使用 CK-Link Debug

发布于 2024-01-21 22:26:14 浏览：324 订阅该版

[tocm]

## 工具介绍

使用 Sipeed 家的 CK-Link 对 Dou 进行 debug , 该款 CK-Link 多合一，可以切换为 DAP-Link , CK-Link , USB转TTL串口，逻辑分析仪，通过按钮进行切换。

在 Ubuntu 中每次切换后可以通过 lsusb 查看目前设备的功能：

```
Bus 001 Device 008: ID d6e7:3507 SIPEED RV CMSIS-DAP
Bus 001 Device 009: ID 359f:3101 SIPEED UARTx4 HSBus 001 Device 010: ID 359f:0300 SIPEED USB TO LA
Bus 001 Device 011: ID 42bf:b210 SIPEED   CKLink-HS
```

可以通过LED指示灯直接区分模式，黄色为 CK-Link 模式

![slogic_led_yellow.png](https://oss-club.rt-thread.org/uploads/20240121/c9ac1daee5f2c56e563096345ebb2b6e.png)

## 准备工作

### 安装调试软件

下载调试工具 T-Head-DebugServe

```
wget https://occ-oss-prod.oss-cn-hangzhou.aliyuncs.com/resource//1698310757460/T-Head-DebugServer-linux-x86_64-V5.18.0-20230926.sh.tar.gz
tar xf T-Head-DebugServer-linux-x86_64-V5.18.0-20230926.sh.tar.gz
sudo ./T-Head-DebugServer-linux-x86_64-V5.18.0-20230926.sh -i
```

安装完成后，使用 DebugServerConsole 命令即可进入调试软件

```
$ DebugServerConsole
+---                                                    ---+
|  T-Head Debugger Server (Build: Sep 26 2023, Linux)      |
   User   Layer Version : 5.18.00 
   Target Layer version : 2.0
|  Copyright (C) 2023 T-HEAD Semiconductor Co.,Ltd.        |
+---                                                    ---+
T-HEAD: CKLink_Lite_V2, App_ver unknown, Bit_ver null, Clock 2526.316KHz,
       5-wire, With DDC, Cache Flush On, SN CKLink_Lite_Vendor-FactoryAIOT.
Extra Info: hacr width is 8.
```

###  替换fip.bin

[下载链接](https://github.com/Judehahh/duo-buildroot-sdk/releases/download/Duo-debug/fip.bin) 需要替换 sd 卡中的 `fip.bin` 文件，以开启 debug 的相关配置

替换了 `fip.bin`之后，使用杜邦线将 Duo 上的 `GP15` 端口与 `3V3(OUT)` 连接，重新上电，进入 debug 模式，这个时候串口会打印如下信息：

```
FSBL Jb28g9:gc198e570f:2024-01-06T17:47:58+08:00                                
st_on_reason=d0000                                                              
st_off_reason=0                                                                 
P2S/0x1000/0x3bc0dc00.                                                          
SD/0xcc00/0x1000/0x1000/0.P2E.                                                  
DPS/0xdc00/0x2000.                                                              
SD/0xdc00/0x2000/0x2000/0.DPE.                                                  
DDR init.                                                                       
ddr_param[0]=0x78075562.                                                        
pkg_type=3                                                                      
D3_1_4                                                                          
DDR2-512M-QFN68                                                                 
Data rate=1333.                                                                 
DDR BIST PASS                                                                   
=========================================                                       
||             Debug Mode              ||                                       
||                                     ||                                       
||  Please use uart4 for serial out,   ||                                       
|| and remove serial tool from uart0.  ||
```

根据日志提示，我们需要将使用uart4作为串口输出，并将连接在uart0的工具移除，不然会对设备调试造成影响。

## 开始调试

### 开启DebugServe

新开一个窗口，并启动DebugServe

```
DebugServerConsole
```

出现如下信息启动并连接成功：

```
+---                                                    ---+
|  T-Head Debugger Server (Build: Sep 26 2023, Linux)      |
   User   Layer Version : 5.18.00 
   Target Layer version : 2.0
|  Copyright (C) 2023 T-HEAD Semiconductor Co.,Ltd.        |
+---                                                    ---+
T-HEAD: CKLink_Lite_V2, App_ver unknown, Bit_ver null, Clock 2526.316KHz,
       5-wire, With DDC, Cache Flush On, SN CKLink_Lite_Vendor-FactoryAIOT.
+--  Debug Arch is RVDM.  --+
```

使用如下命令可以查看调试设备的cpu信息：

```
p target
```

duo是双核，所以出现以下信息：

```
+--  CPU 0  --+
RISCV CPU Info:
	WORD[0]: 0x0910090d
	WORD[1]: 0x12046000
	WORD[2]: 0x260c0001
	WORD[3]: 0x30030076
	WORD[4]: 0x42180000
	WORD[5]: 0x50000000
	WORD[6]: 0x60000853
	MISA   : 0x8000000000b4112d
	MHARTID: 0x0
Target Chip Info:
	CPU Type is C906FDV, Endian=Little, Vlen=128, Version is R2S1P6.
	DCache size is 64K, 4-Way Set Associative, Line Size is 64Bytes, with no ECC.
	ICache size is 32K, 2-Way Set Associative, Line Size is 64Bytes, with no ECC.
	Current cluster0 has 1 core.
	MMU has 256 JTLB items.
	PMP zone num is 8.
	HWBKPT number is 4, HWWP number is 4.
	MISA: (RV64IMAFDCVX, Imp M-mode, S-mode, U-mode)
+--  CPU 1  --+
RISCV CPU Info:
	WORD[0]: 0x0910010d
	WORD[1]: 0x12046000
	WORD[2]: 0x260c0001
	WORD[3]: 0x30030054
	WORD[4]: 0x42180000
	WORD[5]: 0x50000000
	WORD[6]: 0x60000753
	MISA   : 0x800000000094112d
	MHARTID: 0x0
Target Chip Info:
	CPU Type is C906FD, Endian=Little, Version is R2S1P6.
	DCache size is 16K, 4-Way Set Associative, Line Size is 64Bytes, with no ECC.
	ICache size is 8K, 2-Way Set Associative, Line Size is 64Bytes, with no ECC.
	Current cluster1 has 1 core.
	MMU has 128 JTLB items.
	PMP zone num is 8.
	HWBKPT number is 4, HWWP number is 4.
	MISA: (RV64IMAFDCX, Imp M-mode, S-mode, U-mode）
```

### 开启GDB

之后就可以开始使用GDB进行调试了

```
/opt/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu/bin/riscv64-unknown-linux-musl-gdb
```

我的环境出现了以下依赖错误：

```
./riscv64-unknown-linux-musl-gdb: error while loading shared libraries: libpython2.7.so.1.0: cannot open shared object file: No such file or directory
```

检查安装python版本没有问题

```
locate libpython2.7.so.1.0
```

找不到对应的库

尝试重新安装python

```
sudo apt update

sudo apt install python2.7
```

显示已经存在，再次尝试还是缺少对应的库文件

Running the following command will install `libpython2.7.so.1.0`:

```
sudo apt-get install python2.7-dev
```

之后尝试再次启动gdb

```
/opt/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu/bin/riscv64-unknown-linux-musl-gdb
```

成功

```
GNU gdb (GDB) 9.1
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "--host=x86_64-pc-linux-gnu --target=riscv64-unknown-linux-musl".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".
(gdb)
```

不同的环境可以会有不一样的问题，对应不同的解决办法。

之后使用一下命令就可以开始对不同的cpu核开始调试了：

```
# Connect to the main core
riscv64-linux-gnu-gdb -ex "target remote :1025"

# Connect to the small core
riscv64-linux-gnu-gdb -ex "target remote :1026"
```

## Refer：

- https://occ-oss-prod.oss-cn-hangzhou.aliyuncs.com/resource/1836682/1637637514397/T-Head+Debugger+Server+User+Guide.pdf
- https://community.milkv.io/t/jtag-jtag-debug-guide-for-duo/1138