|  | STMicroelectronics STM32 boards (``netduino2``, ``netduinoplus2``, ``stm32vldiscovery``) | 
|  | ======================================================================================== | 
|  |  | 
|  | The `STM32`_ chips are a family of 32-bit ARM-based microcontroller by | 
|  | STMicroelectronics. | 
|  |  | 
|  | .. _STM32: https://www.st.com/en/microcontrollers-microprocessors/stm32-32-bit-arm-cortex-mcus.html | 
|  |  | 
|  | The STM32F1 series is based on ARM Cortex-M3 core. The following machines are | 
|  | based on this chip : | 
|  |  | 
|  | - ``stm32vldiscovery``  STM32VLDISCOVERY board with STM32F100RBT6 microcontroller | 
|  |  | 
|  | The STM32F2 series is based on ARM Cortex-M3 core. The following machines are | 
|  | based on this chip : | 
|  |  | 
|  | - ``netduino2``         Netduino 2 board with STM32F205RFT6 microcontroller | 
|  |  | 
|  | The STM32F4 series is based on ARM Cortex-M4F core. This series is pin-to-pin | 
|  | compatible with STM32F2 series. The following machines are based on this chip : | 
|  |  | 
|  | - ``netduinoplus2``     Netduino Plus 2 board with STM32F405RGT6 microcontroller | 
|  | - ``olimex-stm32-h405`` Olimex STM32 H405 board with STM32F405RGT6 microcontroller | 
|  |  | 
|  | There are many other STM32 series that are currently not supported by QEMU. | 
|  |  | 
|  | Supported devices | 
|  | ----------------- | 
|  |  | 
|  | * ARM Cortex-M3, Cortex M4F | 
|  | * Analog to Digital Converter (ADC) | 
|  | * EXTI interrupt | 
|  | * Serial ports (USART) | 
|  | * SPI controller | 
|  | * System configuration (SYSCFG) | 
|  | * Timer controller (TIMER) | 
|  |  | 
|  | Missing devices | 
|  | --------------- | 
|  |  | 
|  | * Camera interface (DCMI) | 
|  | * Controller Area Network (CAN) | 
|  | * Cycle Redundancy Check (CRC) calculation unit | 
|  | * Digital to Analog Converter (DAC) | 
|  | * DMA controller | 
|  | * Ethernet controller | 
|  | * Flash Interface Unit | 
|  | * GPIO controller | 
|  | * I2C controller | 
|  | * Inter-Integrated Sound (I2S) controller | 
|  | * Power supply configuration (PWR) | 
|  | * Random Number Generator (RNG) | 
|  | * Real-Time Clock (RTC) controller | 
|  | * Reset and Clock Controller (RCC) | 
|  | * Secure Digital Input/Output (SDIO) interface | 
|  | * USB OTG | 
|  | * Watchdog controller (IWDG, WWDG) | 
|  |  | 
|  | Boot options | 
|  | ------------ | 
|  |  | 
|  | The STM32 machines can be started using the ``-kernel`` option to load a | 
|  | firmware. Example: | 
|  |  | 
|  | .. code-block:: bash | 
|  |  | 
|  | $ qemu-system-arm -M stm32vldiscovery -kernel firmware.bin |