1B-L475E-IOT01A IoT Node (``b-l475e-iot01a``) 2============================================ 3 4The B-L475E-IOT01A IoT Node uses the STM32L475VG SoC which is based on 5ARM Cortex-M4F core. It is part of STMicroelectronics 6:doc:`STM32 boards </system/arm/stm32>` and more specifically the STM32L4 7ultra-low power series. The STM32L4x5 chip runs at up to 80 MHz and 8integrates 128 KiB of SRAM and up to 1MiB of Flash. The B-L475E-IOT01A board 9namely features 64 Mibit QSPI Flash, BT, WiFi and RF connectivity, 10USART, I2C, SPI, CAN and USB OTG, as well as a variety of sensors. 11 12Supported devices 13""""""""""""""""" 14 15Currently B-L475E-IOT01A machine's only supports the following devices: 16 17- Cortex-M4F based STM32L4x5 SoC 18- STM32L4x5 EXTI (Extended interrupts and events controller) 19- STM32L4x5 SYSCFG (System configuration controller) 20- STM32L4x5 RCC (Reset and clock control) 21- STM32L4x5 GPIOs (General-purpose I/Os) 22 23Missing devices 24""""""""""""""" 25 26The B-L475E-IOT01A does *not* support the following devices: 27 28- Serial ports (UART) 29- Analog to Digital Converter (ADC) 30- SPI controller 31- Timer controller (TIMER) 32 33See the complete list of unimplemented peripheral devices 34in the STM32L4x5 module : ``./hw/arm/stm32l4x5_soc.c`` 35 36Boot options 37"""""""""""" 38 39The B-L475E-IOT01A machine can be started using the ``-kernel`` 40option to load a firmware. Example: 41 42.. code-block:: bash 43 44 $ qemu-system-arm -M b-l475e-iot01a -kernel firmware.bin 45 46