76 lines
2.1 KiB
Plaintext
76 lines
2.1 KiB
Plaintext
|
Nucleo-WL55JC README
|
||
|
|
====================
|
||
|
|
|
||
|
|
This README file discusses the port of NuttX to the STMicro Nucleo-WL55JC
|
||
|
|
board. That board features the STM32WL55JCI7 MCU with 256KiB of FLASH and
|
||
|
|
64KiB of SRAM. This is dual CPU (not core) chip. There is integrated LORA
|
||
|
|
hardware on board which is only available via CPU0.
|
||
|
|
|
||
|
|
Contents
|
||
|
|
========
|
||
|
|
|
||
|
|
- Status
|
||
|
|
- LEDs
|
||
|
|
- Buttons
|
||
|
|
- Serial Console
|
||
|
|
- Configurations
|
||
|
|
- Flashing
|
||
|
|
|
||
|
|
Status
|
||
|
|
======
|
||
|
|
|
||
|
|
2022.06.07: Board boots and nsh works without problems. Both arduino and
|
||
|
|
virtual com port UARTs work.
|
||
|
|
|
||
|
|
LEDs
|
||
|
|
====
|
||
|
|
|
||
|
|
There are user controlled 3 LEDs. Blue (PB15), Green(PB9) and Red(PB11).
|
||
|
|
To turn on the LED, GPIO has to be driven to HIGH state.
|
||
|
|
|
||
|
|
Green and Red LEDs are used by the system at boot to show system state.
|
||
|
|
Once system is booted these LEDs are for user to control. When
|
||
|
|
CONFIG_ARCH_LEDS is set, Blue LED is reserved by OS for reporting system
|
||
|
|
status. When CONFIG_ARCH_LEDS is not set, OS state won't be reported on
|
||
|
|
any of the LEDs and all 3 LEDs are available for user right from the start.
|
||
|
|
|
||
|
|
Buttons
|
||
|
|
=======
|
||
|
|
|
||
|
|
There are 3 buttons that are available for the user to program, and one
|
||
|
|
reset button.
|
||
|
|
|
||
|
|
Serial Console
|
||
|
|
==============
|
||
|
|
|
||
|
|
There are 2 serial ports - USART1 and LPUART1.
|
||
|
|
|
||
|
|
USART1 is connected to arduino D0/D1 pin and LPUART is connected to
|
||
|
|
stlink that provides virtual serial port.
|
||
|
|
|
||
|
|
NSH is configured to use LPUART and virtual serial port. After flashing
|
||
|
|
you can open /dev/ttyACM0 (may change depending on your system) and nsh
|
||
|
|
prompt will be waiting for you there. Serial device does not disapear
|
||
|
|
when flashing and reseting board - it can be left opened and flashing
|
||
|
|
will work without problems.
|
||
|
|
|
||
|
|
Configuration
|
||
|
|
=============
|
||
|
|
|
||
|
|
Configuration sub-directories
|
||
|
|
-----------------------------
|
||
|
|
|
||
|
|
nsh:
|
||
|
|
|
||
|
|
Configures the NuttShell (nsh) located at examples/nsh. NSH is will
|
||
|
|
work on virtual serial port over usb.
|
||
|
|
|
||
|
|
Flashing
|
||
|
|
========
|
||
|
|
|
||
|
|
Easiest way to flash nucleo is to use openocd tool. Openocd supports
|
||
|
|
stlink v3 which is on the board. It's as easy as running:
|
||
|
|
|
||
|
|
openocd -f interface/stlink.cfg -f target/stm32wlx.cfg \
|
||
|
|
-c "program nuttx.bin exit 0x08000000"
|