165 lines
5.2 KiB
ReStructuredText
165 lines
5.2 KiB
ReStructuredText
.. _stm32f103_mini_board:
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STM32F103 Mini
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################
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Overview
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********
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The STM32F103_MINI board features an ARM Cortex-M3 based STM32F103RC MCU
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with a wide range of connectivity support and configurations. There are
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multiple version of this board like ``stm32f103_mini``.
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.. image:: img/stm32f103_mini_yellow.jpg
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:align: center
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:alt: STM32F103 Mini Yellow
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.. image:: img/stm32f103_mini_blue.jpg
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:align: center
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:alt: STM32F103 Mini Blue
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Hardware
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********
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STM32F103 Mini provides the following hardware components:
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- STM32 microcontroller in QFP64 package
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- Flexible board power supply:
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- USB VBUS or external source (3.3V, 5V, 7 - 12V)
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- Power management access point
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- Two LEDs:
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- User LED (LD1), power LED (LD2)
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- USB re-enumeration capability:
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- Mass storage
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More information about STM32F103RC can be found here:
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- `STM32F103 reference manual`_
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- `STM32F103 data sheet`_
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Supported Features
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==================
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The Zephyr stm32f103_mini board configuration supports the following hardware features:
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+-----------+------------+-------------------------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+=====================================+
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| NVIC | on-chip | nested vector interrupt controller |
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+-----------+------------+-------------------------------------+
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| UART | on-chip | serial port-polling; |
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| | | serial port-interrupt |
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+-----------+------------+-------------------------------------+
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| PINMUX | on-chip | pinmux |
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+-----------+------------+-------------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------------+
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| CLOCK | on-chip | reset and clock control |
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+-----------+------------+-------------------------------------+
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| FLASH | on-chip | flash memory |
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+-----------+------------+-------------------------------------+
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| WATCHDOG | on-chip | independent watchdog |
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+-----------+------------+-------------------------------------+
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| ADC | on-chip | ADC Controller |
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+-----------+------------+-------------------------------------+
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| PWM | on-chip | pwm |
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+-----------+------------+-------------------------------------+
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| SPI | on-chip | spi |
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+-----------+------------+-------------------------------------+
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| USB | on-chip | USB device |
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+-----------+------------+-------------------------------------+
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| COUNTER | on-chip | rtc |
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+-----------+------------+-------------------------------------+
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Other hardware features are not yet supported in this Zephyr port.
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The default configuration can be found in
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:zephyr_file:`boards/st/stm32f103_mini/stm32f103_mini_defconfig`
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Connections and IOs
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===================
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Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as
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input (with or without pull-up or pull-down), or as peripheral alternate function. Most of the
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GPIO pins are shared with digital or analog alternate functions. All GPIOs are high current
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capable except for analog inputs.
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Board connectors:
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-----------------
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.. image:: img/stm32f103_mini_pin.jpg
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:align: center
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:alt: Nucleo F103RB connectors
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Default Zephyr Peripheral Mapping:
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----------------------------------
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- UART_1 TX/RX: PA9/PA10
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- UART_2 TX/RX: PA2/PA3 (ST-Link Virtual COM Port)
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- SPI1 NSS/SCK/MISO/MOSI: PA4/PA5/PA6/PA7
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- SPI2 NSS/SCK/MISO/MOSI: PB12/PB13/PB14/PB15
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- I2C1 SDA/SCL: PB9/PB8
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- PWM1_CH1: PA8
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- USER_PB: PC13
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- LD1: PA5
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- USB_DC DM/DP: PA11/PA12
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System Clock
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------------
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The on-board 8MHz crystal is used to produce a 72MHz system clock with PLL.
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Programming and Debugging
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*************************
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Applications for the ``stm32f103_mini`` board configuration can be built and
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flashed in the usual way (see :ref:`build_an_application` and
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:ref:`application_run` for more details).
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Flashing
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========
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There are 2 main entry points for flashing STM32F1X SoCs, one using the ROM
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bootloader, and another by using the SWD debug port (which requires additional
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hardware such as ST-Link). Flashing using the ROM bootloader requires a special activation
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pattern, which can be triggered by using the BOOT0 pin.
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Flashing an application to stm32f103 mini
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-----------------------------------------
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Here is an example for the :zephyr:code-sample:`blinky` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/basic/blinky
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:board: stm32f103_mini
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:goals: build flash
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You will see the LED blinking every second.
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Debugging
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=========
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You can debug an application in the usual way. Here is an example for the
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:zephyr:code-sample:`blinky` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/basic/blinky
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:board: stm32f103_mini
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:maybe-skip-config:
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:goals: debug
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References
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**********
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.. target-notes::
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.. _STM32F103 reference manual:
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https://www.st.com/resource/en/reference_manual/cd00171190.pdf
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.. _STM32F103 data sheet:
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https://www.st.com/resource/en/datasheet/stm32f103rc.pdf
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