| B-L475E-IOT01A IoT Node (``b-l475e-iot01a``) |
| ============================================ |
| |
| The B-L475E-IOT01A IoT Node uses the STM32L475VG SoC which is based on |
| ARM Cortex-M4F core. It is part of STMicroelectronics |
| :doc:`STM32 boards </system/arm/stm32>` and more specifically the STM32L4 |
| ultra-low power series. The STM32L4x5 chip runs at up to 80 MHz and |
| integrates 128 KiB of SRAM and up to 1MiB of Flash. The B-L475E-IOT01A board |
| namely features 64 Mibit QSPI Flash, BT, WiFi and RF connectivity, |
| USART, I2C, SPI, CAN and USB OTG, as well as a variety of sensors. |
| |
| Supported devices |
| """"""""""""""""" |
| |
| Currently B-L475E-IOT01A machines support the following devices: |
| |
| - Cortex-M4F based STM32L4x5 SoC |
| - STM32L4x5 EXTI (Extended interrupts and events controller) |
| - STM32L4x5 SYSCFG (System configuration controller) |
| - STM32L4x5 RCC (Reset and clock control) |
| - STM32L4x5 GPIOs (General-purpose I/Os) |
| - STM32L4x5 USARTs, UARTs and LPUART (Serial ports) |
| - optional 8x8 led display (based on DM163 driver) |
| |
| Missing devices |
| """"""""""""""" |
| |
| The B-L475E-IOT01A does *not* support the following devices: |
| |
| - Analog to Digital Converter (ADC) |
| - SPI controller |
| - Timer controller (TIMER) |
| |
| See the complete list of unimplemented peripheral devices |
| in the STM32L4x5 module : ``./hw/arm/stm32l4x5_soc.c`` |
| |
| Boot options |
| """""""""""" |
| |
| The B-L475E-IOT01A machine can be started using the ``-kernel`` |
| option to load a firmware. Example: |
| |
| .. code-block:: bash |
| |
| $ qemu-system-arm -M b-l475e-iot01a -kernel firmware.bin |
| |
