| .. _stm32f072_eval_board: |
| |
| ST STM32F072 Evaluation |
| ####################### |
| |
| Overview |
| ******** |
| |
| The STM32F072-EVAL Discovery kit features an ARM Cortex-M0 based STM32F072VBT6 MCU |
| with a wide range of connectivity support and configurations. |
| Here are some highlights of the STM32F072-EVAL board: |
| |
| - Four 5 V power supply options: power jack, ST-LINK/V2 USB connector, user USB connector, or daughter board |
| - Stereo audio jack, which supports a headset with microphone connected to DAC and ADC of STM32F072VBT6. |
| - 2G Byte (or more) SPI interface MicroSD card |
| - I2C compatible serial interface temperature sensor |
| - RF E2PROM |
| - RS232 and RS485 communication |
| - IrDA transceiver |
| - IR LED and IR receiver |
| - SWD debug support, ST-LINK/V2 embedded |
| - 240x320 TFT color LCD connected to SPI interface of STM32F072VBT6 |
| - Joystick with 4-direction control and selector |
| - Reset and tamper buttons |
| - Four color user LEDs and two LEDs as MCU low power alarm |
| - Extension connector for daughter board or wrapping board |
| - MCU voltage choice: fixed 3.3 V or adjustable from 1.65 V to 3.6 V |
| - USB full-speed connector |
| - Touch sensing buttons |
| - RTC with backup battery |
| - CAN2.0A/B compliant connector |
| - Light Dependent Resistor (LDR) |
| - Potentiometer |
| - Two HDMI connectors with DDC and CEC |
| - Smart Card slot |
| - Motor control connector |
| |
| |
| .. image:: img/stm32f072_eval.jpg |
| :width: 540px |
| :align: center |
| :height: 549px |
| :alt: STM32F072-EVAL |
| |
| More information about the board can be found at the `STM32F072-EVAL website`_. |
| |
| Hardware |
| ******** |
| |
| STM32F072-EVAL Discovery kit provides the following hardware components: |
| |
| - STM32F072VBT6 in LQFP100 package |
| - ARM |reg| 32-bit Cortex |reg| -M0 CPU |
| - 48 MHz max CPU frequency |
| - VDD from 2.0 V to 3.6 V |
| - 128 KB Flash |
| - 16 KB SRAM with HW parity |
| - GPIO with external interrupt capability |
| - one 12-bit ADC with 16 channels |
| - one 12-bit D/A converters with 2 channels |
| - RTC |
| - Advanced-control Timer |
| - General Purpose Timers (8) |
| - Watchdog Timers (2) |
| - USART (4) |
| - I2C (2) |
| - SPI (2) |
| - CAN |
| - USB 2.0 OTG FS with on-chip PHY |
| - CRC calculation unit |
| - DMA Controller |
| - HDMI CEC Controller |
| - 24 capacitive sensing channels for touchkey, linear, and rotary touch sensors |
| - Up to 87 fast I/Os: 68 I/Os with 5V tolerant capability and 19 with independent supply |
| |
| More information about STM32F072VB can be found here: |
| - `STM32F072VB on www.st.com`_ |
| - `STM32F072 reference manual`_ |
| |
| Supported Features |
| ================== |
| |
| The Zephyr stm32f072_eval board configuration supports the following hardware features: |
| |
| +-----------+------------+-------------------------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+=====================================+ |
| | NVIC | on-chip | nested vector interrupt controller | |
| +-----------+------------+-------------------------------------+ |
| | UART | on-chip | serial port-polling; | |
| | | | serial port-interrupt | |
| +-----------+------------+-------------------------------------+ |
| | PINMUX | on-chip | pinmux | |
| +-----------+------------+-------------------------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+-------------------------------------+ |
| | PWM | on-chip | pwm | |
| +-----------+------------+-------------------------------------+ |
| | CLOCK | on-chip | reset and clock control | |
| +-----------+------------+-------------------------------------+ |
| | WATCHDOG | on-chip | independent watchdog | |
| +-----------+------------+-------------------------------------+ |
| |
| Other hardware features are not yet supported on this Zephyr porting. |
| |
| The default configuration can be found in the defconfig file: |
| |
| ``boards/arm/stm32f072_eval/stm32f072_eval_defconfig`` |
| |
| |
| Pin Mapping |
| =========== |
| |
| STM32F072-EVAL Discovery kit has 6 GPIO controllers. These controllers are responsible for pin muxing, |
| input/output, pull-up, etc. |
| |
| For mode details please refer to `STM32F072-EVAL board User Manual`_. |
| |
| Default Zephyr Peripheral Mapping: |
| ---------------------------------- |
| - UART_2_TX : PD5 |
| - UART_2_RX : PD6 |
| - TAMPER_PB : PC13 |
| - JOYSTICK_RIGHT_PB : PE3 |
| - JOYSTICK_LEFT_PB : PF2 |
| - JOYSTICK_UP_PB : PF9 |
| - JOYSTICK_DOWN_PB : PF10 |
| - JOYSTICK_SEL_PB : PA0 |
| - LD1 : PD8 |
| - LD2 : PD9 |
| - LD3 : PD10 |
| - LD4 : PD11 |
| |
| System Clock |
| ============ |
| |
| STM32F072-EVAL System Clock could be driven by an internal or external oscillator, |
| as well as the main PLL clock. By default the System clock is driven by the PLL clock at 48MHz, |
| driven by an 8MHz high speed internal clock. |
| |
| Serial Port |
| =========== |
| |
| STM32F072-EVAL Discovery kit has up to 4 UARTs. The Zephyr console output is assigned to UART2. |
| Default settings are 115200 8N1. |
| |
| Programming and Debugging |
| ************************* |
| |
| Applications for the ``stm32f072_eval`` board configuration can be built and |
| flashed in the usual way (see :ref:`build_an_application` and |
| :ref:`application_run` for more details). |
| |
| Flashing |
| ======== |
| |
| STM32F072-EVAL Discovery kit includes an ST-LINK/V2 embedded debug tool interface. |
| This interface is supported by the openocd version included in Zephyr SDK. |
| |
| Flashing an application to STM32F072-EVAL |
| ------------------------------------------- |
| |
| Here is an example for the :ref:`blinky-sample` application. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/basic/blinky |
| :board: stm32f072_eval |
| :goals: build flash |
| |
| You will see the LED blinking every second. |
| |
| Debugging |
| ========= |
| |
| You can debug an application in the usual way. Here is an example for the |
| :ref:`blinky-sample` application. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/basic/blinky |
| :board: stm32f072_eval |
| :maybe-skip-config: |
| :goals: debug |
| |
| |
| .. _STM32F072-EVAL website: |
| http://www.st.com/en/evaluation-tools/stm32072b-eval.html |
| |
| .. _STM32F072-EVAL board User Manual: |
| http://www.st.com/resource/en/user_manual/dm00104135.pdf |
| |
| .. _STM32F072VB on www.st.com: |
| http://www.st.com/en/microcontrollers/stm32f072vb.html |
| |
| .. _STM32F072 reference manual: |
| http://www.st.com/resource/en/reference_manual/dm00031936.pdf |