From a91d9e207271fb2f873c4401dbcf3d824269ed6f Mon Sep 17 00:00:00 2001
From: pennam <m.pennasilico@arduino.cc>
Date: Fri, 20 Jun 2025 10:33:02 +0200
Subject: [PATCH] Add Arduino Stella

---
 boards.txt       | 64 +++++++++++++++++++++++++++++++++++++++++++++++-
 stella.variables |  5 ++++
 2 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100644 stella.variables

diff --git a/boards.txt b/boards.txt
index 048ca551d..76797dea7 100644
--- a/boards.txt
+++ b/boards.txt
@@ -871,4 +871,66 @@ giga.debug.server.openocd.scripts.1={programmer.transport_script}
 giga.debug.server.openocd.scripts.2=target/stm32h7x_dual_bank.cfg
 giga.debug.cortex-debug.custom.request=attach
 giga.menu.target_core.cm7.debug.svd_file={runtime.platform.path}/svd/STM32H747_CM7.svd
-giga.menu.target_core.cm4.debug.svd_file={runtime.platform.path}/svd/STM32H747_CM4.svd
\ No newline at end of file
+giga.menu.target_core.cm4.debug.svd_file={runtime.platform.path}/svd/STM32H747_CM4.svd
+
+##############################################################
+
+stella.name=Arduino Stella
+stella.build.core=arduino
+stella.build.crossprefix=arm-none-eabi-
+stella.build.compiler_path={runtime.tools.arm-none-eabi-gcc-7-2017q4.path}/bin/
+
+stella.build.variant=ARDUINO_NANO33BLE
+stella.build.mcu=cortex-m4
+stella.build.extra_flags=
+stella.build.architecture=cortex-m4
+stella.build.fpu=-mfpu=fpv4-sp-d16
+stella.build.float-abi=-mfloat-abi=softfp
+stella.build.board=ARDUINO_NANO33BLE
+stella.build.ldscript=linker_script.ld
+stella.compiler.mbed.arch.define=-DARDUINO_ARCH_NRF52840
+stella.compiler.mbed.defines={build.variant.path}/defines.txt
+stella.compiler.mbed.ldflags={build.variant.path}/ldflags.txt
+stella.compiler.mbed.cflags={build.variant.path}/cflags.txt
+stella.compiler.mbed.cxxflags={build.variant.path}/cxxflags.txt
+stella.compiler.mbed.includes={build.variant.path}/includes.txt
+stella.compiler.mbed.extra_ldflags=-lstdc++ -lsupc++ -lm -lc -lgcc -lnosys
+stella.compiler.mbed="{build.variant.path}/libs/libmbed.a" "{build.variant.path}/libs/libcc_310_core.a" "{build.variant.path}/libs/libcc_310_ext.a" "{build.variant.path}/libs/libcc_310_trng.a"
+stella.vid.0=0x2341
+stella.pid.0=0x005a
+stella.vid.1=0x2341
+stella.pid.1=0x805a
+stella.vid.2=0x2341
+stella.pid.2=0x015a
+stella.vid.3=0x2341
+stella.pid.3=0x025a
+stella.upload_port.0.vid=0x2341
+stella.upload_port.0.pid=0x005a
+stella.upload_port.1.vid=0x2341
+stella.upload_port.1.pid=0x805a
+stella.upload_port.2.vid=0x2341
+stella.upload_port.2.pid=0x015a
+stella.upload_port.3.vid=0x2341
+stella.upload_port.3.pid=0x025a
+
+stella.upload.tool=bossac
+stella.upload.tool.default=bossac
+stella.upload.protocol=
+stella.upload.transport=
+stella.upload.use_1200bps_touch=true
+stella.upload.wait_for_upload_port=true
+stella.upload.native_usb=true
+stella.upload.maximum_size=983040
+stella.upload.maximum_data_size=262144
+
+stella.bootloader.tool=openocd
+stella.bootloader.tool.default=openocd
+stella.bootloader.extra_action.preflash=echo INFO:removed_mass-erase
+stella.bootloader.config=-f target/nrf52.cfg
+stella.bootloader.programmer=-f interface/cmsis-dap.cfg
+stella.bootloader.file=nano33ble/bootloader.hex
+
+stella.debug.server.openocd.scripts.0=interface/{programmer.protocol}.cfg
+stella.debug.server.openocd.scripts.1={programmer.transport_script}
+stella.debug.server.openocd.scripts.2=target/nrf52.cfg
+stella.debug.svd_file={runtime.platform.path}/svd/nrf52840.svd
diff --git a/stella.variables b/stella.variables
new file mode 100644
index 000000000..12b0b3df9
--- /dev/null
+++ b/stella.variables
@@ -0,0 +1,5 @@
+export FLAVOUR="stella"
+export VARIANTS=("ARDUINO_NANO33BLE")
+export FQBNS=("stella")
+export LIBRARIES=("PDM SPI Wire MRI USBHID USBMIDI USBMSD ThreadDebug Scheduler SFU Nano33BLE_System SocketWrapper MLC")
+export BOOTLOADERS=("nano33ble")