Please help with tinyusb cmake minimum sample

[Matthias32]

HI,

Im trying now for days to make a very simple tinyusb USB CDC sample with a STM32Nucelo C071 board. I have searched the whole internet but found no explanation to my problem. Im failing to integrate the tinyusb lib into my project. Can someone explain a minimal cmake example how to implement the tinyusb lib? For the editor Im using CLion.

BR
Matthias

[HiFiPhile]

It's pretty straightforward, you can simply add the source files of the class you needed (eg. CDC & HID) and includes to your project:

# C/C++ source files 
set(SRC_C_CXX
    ../../../tinyusb/src/class/cdc/cdc_device.c
    ../../../tinyusb/src/class/hid/hid_device.c
    ../../../tinyusb/src/tusb.c
    ../../../tinyusb/src/common/tusb_fifo.c
    ../../../tinyusb/src/device/usbd.c
    ../../../tinyusb/src/device/usbd_control.c
    main.c
    usb_descriptors.c
    system_stm32g0xx.c
)

# Includes
set(INCLUDES
    CMSIS/Include
    CMSIS/Device/Include
    ../../../tinyusb/src
    .
)

Or use tinyusb_sources_get function too add all source files:

include(../../../tinyusb/src/CMakeLists.txt)

tinyusb_sources_get(TUSB_SRC)

# C/C++ source files
set(SRC_C_CXX
    ${TUSB_SRC}
    main.c
    usb_descriptors.c
    system_stm32g0xx.c
)

# Includes
set(INCLUDES
    CMSIS/Include
    CMSIS/Device/Include
    ../../../tinyusb/src
    .
)

[Matthias32]

Sorry I still cant make it work. My cmake looks different.

Below is my clean cmake so far. I have added the modified (set MCU type) tusb_config.h to Core/Inc and usb_descriptors.c (from the CDC sample) to Core/Scr. I modified the main.c. How I need to modify my cmake then?

cmake_minimum_required(VERSION 3.22)

#
# This file is generated only once,
# and is not re-generated if converter is called multiple times.
#
# User is free to modify the file as much as necessary
#

# Setup compiler settings
set(CMAKE_C_STANDARD 11)
set(CMAKE_C_STANDARD_REQUIRED ON)
set(CMAKE_C_EXTENSIONS ON)


# Define the build type
if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE "Debug")
endif()

# Set the project name
set(CMAKE_PROJECT_NAME USBTest)

# Enable compile command to ease indexing with e.g. clangd
set(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)

# Core project settings
project(${CMAKE_PROJECT_NAME})
message("Build type: " ${CMAKE_BUILD_TYPE})

# Enable CMake support for ASM and C languages
enable_language(C ASM)

# Create an executable object type
add_executable(${CMAKE_PROJECT_NAME})

# Add STM32CubeMX generated sources
add_subdirectory(cmake/stm32cubemx)

# Link directories setup
target_link_directories(${CMAKE_PROJECT_NAME} PRIVATE
        # Add user defined library search paths
)

# Add sources to executable
target_sources(${CMAKE_PROJECT_NAME} PRIVATE
        # Add user sources here
)

# Add include paths
target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE
        # Add user defined include paths
)

# Add project symbols (macros)
target_compile_definitions(${CMAKE_PROJECT_NAME} PRIVATE
        # Add user defined symbols
)

# Remove wrong libob.a library dependency when using cpp files
list(REMOVE_ITEM CMAKE_C_IMPLICIT_LINK_LIBRARIES ob)

# Add linked libraries
target_link_libraries(${CMAKE_PROJECT_NAME}
        stm32cubemx

        # Add user defined libraries
)

[Matthias32]

Meanwhile I made it work with the following cmake :-) I didn't add the dcd driver before.

cmake_minimum_required(VERSION 3.22)

#
# This file is generated only once,
# and is not re-generated if converter is called multiple times.
#
# User is free to modify the file as much as necessary
#

# Setup compiler settings
set(CMAKE_C_STANDARD 11)
set(CMAKE_C_STANDARD_REQUIRED ON)
set(CMAKE_C_EXTENSIONS ON)


# Define the build type
if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE "Debug")
endif()

# Set the project name
set(CMAKE_PROJECT_NAME USBTest)

# Enable compile command to ease indexing with e.g. clangd
set(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)

# Core project settings
project(${CMAKE_PROJECT_NAME})
message("Build type: " ${CMAKE_BUILD_TYPE})

# Enable CMake support for ASM and C languages
enable_language(C ASM)

# Create an executable object type
add_executable(${CMAKE_PROJECT_NAME})

# Add STM32CubeMX generated sources
add_subdirectory(cmake/stm32cubemx)

# Tinyusb
include(tinyusb/src/CMakeLists.txt)
tinyusb_sources_get(TUSB_SRC)

# Link directories setup
target_link_directories(${CMAKE_PROJECT_NAME} PRIVATE
        # Add user defined library search paths
)

# Add sources to executable
target_sources(${CMAKE_PROJECT_NAME} PRIVATE
        # Add user sources here
        ${TUSB_SRC}
        Core/Src/usb_descriptors.c
        tinyusb/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
)

# Add include paths
target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE
        # Add user defined include paths
        tinyusb/src
        tinyusb/hw
)

# Add project symbols (macros)
target_compile_definitions(${CMAKE_PROJECT_NAME} PRIVATE
        # Add user defined symbols
)

# Remove wrong libob.a library dependency when using cpp files
list(REMOVE_ITEM CMAKE_C_IMPLICIT_LINK_LIBRARIES ob)

# Add linked libraries
target_link_libraries(${CMAKE_PROJECT_NAME}
        stm32cubemx

        # Add user defined libraries
)

To make it compile and show the cdc port I needed to uncomment the "chr_count = board_usb_get_serial(_desc_str + 1, 32);" from the samples usb_descriptor.c. Without uncomment I got a error from the board_api.h which didn't find "board_get_unique_id".

Is this a bug or is my configuration still wrong?

[HiFiPhile]

board_usb_get_serial is not a a part of core source code (/src) but board specific (/hw), you can leave it behind.

tinyusb/hw/bsp/board_api.h

Line 151 in c785469

static inline size_t board_usb_get_serial(uint16_t desc_str1[], size_t max_chars) {

[Matthias32]

OK so I need to implement this function by my own if needed?

[HiFiPhile]

OK so I need to implement this function by my own if needed?

Yep