c771f883f2
This device implements the IM120417002 colors shield v1.1 for Arduino (which relies on the DM163 8x3-channel led driving logic) and features a simple display of an 8x8 RGB matrix. The columns of the matrix are driven by the DM163 and the rows are driven externally. Acked-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20240424200929.240921-2-ines.varhol@telecom-paris.fr [PMM: updated to new reset hold method prototype] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
47 lines
1.5 KiB
ReStructuredText
47 lines
1.5 KiB
ReStructuredText
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
|
|
|