docs/system/arm/b-l475e-iot01a.rst

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