# ch32v305_dap

**Repository Path**: xu-jianchao/ch32v305_dap

## Basic Information

- **Project Name**: ch32v305_dap
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 16
- **Created**: 2025-10-22
- **Last Updated**: 2025-10-25

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# ch32v305_dap

# 编译方法
- 首先要配置编译器路径, 这里使用的是MounRiver Studio的编译器, 将其加入到环境变量中去
![alt text](image-6.png)

- 然后用cmake+ninja编译
```c
(.venv) Administrator@DESKTOP-0UKCPD3 E:\Share\github\ch32v305_dap
# cd build

(.venv) Administrator@DESKTOP-0UKCPD3 E:\Share\github\ch32v305_dap\build
# cmake .. -G "Ninja"
-- The C compiler identification is GNU 8.2.0
-- The ASM compiler identification is GNU
-- Found assembler: E:/MounRiver/MounRiver_Studio2/resources/app/resources/win32/components/WCH/Toolchain/RISC-V Embedded GCC/bin/riscv-none-embed-gcc.exe
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: E:/MounRiver/MounRiver_Studio2/resources/app/resources/win32/components/WCH/Toolchain/RISC-V Embedded GCC/bin/riscv-none-embed-gcc.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Minimal optimization, debug info included
-- Configuring done (3.0s)
-- Generating done (0.1s)
-- Build files have been written to: E:/Share/github/ch32v305_dap/build

(.venv) Administrator@DESKTOP-0UKCPD3 E:\Share\github\ch32v305_dap\build
# cmake --build .
[30/46] Building C object CMakeFiles/CH32V305_DAP.elf.dir/CherryDAP/DAP/Source/DAP.c.obj
E:/Share/github/ch32v305_dap/CherryDAP/DAP/Source/DAP.c: In function 'DAP_SWJ_Clock':
E:/Share/github/ch32v305_dap/CherryDAP/DAP/Source/DAP.c:408:12: warning: unused variable 'delay' [-Wunused-variable]
   uint32_t delay;
            ^~~~~
[39/46] Building C object CMakeFiles/CH32V305_DAP.elf.dir/DAPHost/swd_host.c.obj
E:/Share/github/ch32v305_dap/DAPHost/swd_host.c:675:16: warning: 'swd_wait_until_halted' defined but not used [-Wunused-function]
 static uint8_t swd_wait_until_halted(void)
                ^~~~~~~~~~~~~~~~~~~~~
E:/Share/github/ch32v305_dap/DAPHost/swd_host.c:567:16: warning: 'swd_write_debug_state' defined but not used [-Wunused-function]
 static uint8_t swd_write_debug_state(DEBUG_STATE *state)
                ^~~~~~~~~~~~~~~~~~~~~
[43/46] Building C object CMakeFiles/CH32V305_DAP.elf.dir/CherryDAP/dap_main.c.obj
E:/Share/github/ch32v305_dap/CherryDAP/dap_main.c: In function 'usbd_cdc_acm_bulk_in':
E:/Share/github/ch32v305_dap/CherryDAP/dap_main.c:354:14: warning: unused variable 'buffer' [-Wunused-variable]
     uint8_t *buffer;
              ^~~~~~
E:/Share/github/ch32v305_dap/CherryDAP/dap_main.c:353:14: warning: unused variable 'size' [-Wunused-variable]
     uint32_t size;
              ^~~~
E:/Share/github/ch32v305_dap/CherryDAP/dap_main.c: At top level:
E:/Share/github/ch32v305_dap/CherryDAP/dap_main.c:412:18: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
     .compat_id = USBD_WinUSBDescriptorSetDescriptor,
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
E:/Share/github/ch32v305_dap/CherryDAP/dap_main.c:417:15: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
     .string = USBD_BinaryObjectStoreDescriptor,
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[46/46] Linking C executable CH32V305_DAP.elf
Memory region         Used Size  Region Size  %age Used
           FLASH:       81224 B       128 KB     61.97%
             RAM:       29552 B        32 KB     90.19%
   text    data     bss     dec     hex filename
  55192   26032    3520   84744   14b08 E:/Share/github/ch32v305_dap/build/CH32V305_DAP.elf
```

- 输出结果
![alt text](image.png)

- 烧录stm32f103rb的波形
- 注意RST是OD输出(可以看代码), 必须接到target的RST才有波形输出。直接逻辑分析仪抓RST线是没有波形的。
- ![alt text](image-1.png)


# 速度对比
![alt text](image-2.png)
![alt text](image-3.png)
![alt text](image-4.png)

- 这与编译优化等级有关系
![alt text](image-5.png)

- 采用cmake .. -G "Ninja" -DCMAKE_BUILD_TYPE=Release编译出来的固件非常小，但是不识别daplink。失败。
- 采用cmake .. -G "Ninja" -DCMAKE_BUILD_TYPE=RelWithDebInfo编译出来的固件，和fanhuacloud提供的基本一样大。速度接近