About

This is an example of libtropic's usage on NUCLEO-F439ZI devboard:

• Based on used transport layer, example works against TROPIC01 model or FPGA(physical silicon)
• Debug messages are transmitted over devboard's USB ACM serial port, they can be received by opening a serial port on PC

Dependencies

• cmake
• arm-none-eabi-gcc
• openocd (check OPENOCD_CFG in CMakeLists.txt. If needed, define own path to config file for your devboard)

Transport layer

Transport layer must be defined by uncommenting apropriate option in example's CMakeLists.txt.

If SPI is enabled, hardware talks to a TROPIC01 chip and uses folowing pins:

MISO	GPIOE_5
MOSI	GPIOE_6
SCK	GPIOE_2
CS	GPIOE_4

If UART is enabled, hardware talks to the model of TROPIC01 and uses folowing pins:

TX	GPIOC_12
RX	GPIOD_2

Check model's repository on how to start model with serial transpot layer.

How to compile and flash?

When a transport layer is defined in CMakeLists.txt, connect devboard and execute following commands in this folder:

mkdir build
cd build
cmake ..
make flash

For compiling in debug mode pass cmake -DCMAKE_BUILD_TYPE=Debug .. during cmake call.

Debugging in VS Code

Install dependencies:

• cortex-debug extension
• arm-none-eabi-gdb

Then place this launch.json file into .vscode folder:

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "cortex-debug",
            "request": "attach",
            "name": "Debug (OpenOCD)",
            "servertype": "openocd",
            "cwd": "${workspaceRoot}",
            //"preLaunchTask": "cargo build",
            //"runToEntryPoint": "true",
            "executable": "./build/stm32_example.elf",
            "device": "STM32F429ZI",
            "configFiles": [
                "/usr/share/openocd/scripts/board/stm32f429discovery.cfg"
            ],
        }
    ]
}

Debugging should be enabled after restarting your VS Code.

STM32CubeIDE

• Open File>New>STM32 Cmake Project
• Set 'Project with existing CMake sources'
• Choose apropriate name, set source directory to PATH_TO_THIS_EXAMPLE/stm32_example and set the name of build directory
• Define used MCU (Supported device is STM32F439ZITx)
• Click on finish
• Define transport layer by uncommenting an option in CMakeLists.txt
• Click on Build, then on the left side click on binaries, right click on stm32_example.elf and choose 'run as a stm32 Application'