This repository contains minimal demos of stm32f0discovery's peripherals with CMSIS.
It will help you to make connection between datasheet and physical hardware. This is for educational purposes. Main purpose is demonstrating simple communication interfaces. If I have enough time, I ll put more peripherals other than communication.
| Goal | State | Demo | Description |
|---|---|---|---|
| Spi | ✓ | 03_spi_bit_bang | Simplest way to push data with SPI |
| Uart | ✓ | 04_uart | Pushing data with UART |
| I2C | ✓ | 05_i2c | Pushing data to I2C bus(with fake slave) |
| More | State | Demo | Description |
|---|---|---|---|
| Core Clock | ✓ | 00_core_clock | Well to be able to do anything clocks needs to be setup. Core and bus clock configurations and core clock speed test |
| Systick | ✓ | 01_systick | Systick 1 ms interrupt configuration |
| Gpio Out | ✓ | 02_gpio_out | Explained how board led configuration is done |
- Install(download and unzip path of your choice) arm-none-eabi-gcc.
- Create environment variable GCC_ARM_NONE_EABI_BIN_PATH which points to binaries.
- Install GNU make utility.
- Install CMake utility.
- Give execute permission files under shell.
chmod +x shell/*.sh - After all satisfied, run configure.sh. configure.sh checks prerequisities.
./shell/rebuild_all.sh
If you have CubeMx installed already, then you could create an environment variable STM32_Programmer_CLI_PATH. It will allow you flash firmware directly to the board.
Example path of mine and how to flash using script.
export STM32_Programmer_CLI_PATH=/opt/st/stm32cubeide_1.17.0/plugins/com.st.stm32cube.ide.mcu.externaltools.cubeprogrammer.linux64_2.2.0.202409170845/tools/bin
./shell/rebuild_download.sh 02_gpio_out
- Every demo should be in a single main.c file
- Every demo should be compilable by it is own. No shared resources between demos.
- Only the lines that thought to be as tricky explained.
- All above choices made to keep it simple.
See the references under doc folder.
- Reference manual of STM32F051R8T6 rm0091
- Technical reference manual of Cortex-M0 DDI0432C
- Programming manual of STM32F051R8T6 pm0215
- Stm32f0discovery board schematic MB1034
- STM32F051R8T6 datasheet stm32f051r8
| Short form | Description |
|---|---|
| APB | Advanced Peripheral Bus |
| HSI | High Speed Internal Oscillator |
| AHB | Advanced High Performance Bus |
| GPIO | General Purpose Input Output |
| NVIC | Nested Vector Interrupt Controller |
| SPI | Serial Peripheral Interface |
| UART | Universal Asynchronous Receiver/Transmitter |
| I2C | Inter-Integrated Circuit Protocol |