feat(boards/cuav_x25-mega): Add cuav/x25-mega board support

.vscode/cmake-variants.yaml

@@ -341,6 +341,11 @@ CONFIG:
       buildType: MinSizeRel
       settings:
         CONFIG: cuav_x25-super_default
+    cuav_x25-mega_default:
+      short: cuav_x25-mega
+      buildType: MinSizeRel
+      settings:
+        CONFIG: cuav_x25-mega_default
     cubepilot_cubeorange_test:
       short: cubepilot_cubeorange
       buildType: MinSizeRel

Makefile

@@ -352,6 +352,7 @@ bootloaders_update: \
 	cuav_fmu-v6x_bootloader \
 	cuav_x25-evo_bootloader \
 	cuav_x25-super_bootloader \
+	cuav_x25-mega_bootloader \
 	cubepilot_cubeorange_bootloader \
 	cubepilot_cubeorangeplus_bootloader \
 	hkust_nxt-dual_bootloader \

boards/cuav/x25-mega/CMakeLists.txt

@@ -0,0 +1,34 @@
+############################################################################
+#
+#   Copyright (c) 2026 PX4 Development Team. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name PX4 nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+add_subdirectory(pwm_voltage)

boards/cuav/x25-mega/bootloader.px4board

@@ -0,0 +1,3 @@
+CONFIG_BOARD_TOOLCHAIN="arm-none-eabi"
+CONFIG_BOARD_ARCHITECTURE="cortex-m7"
+CONFIG_BOARD_ROMFSROOT=""

boards/cuav/x25-mega/cmake/upload.cmake

@@ -0,0 +1,49 @@
+############################################################################
+#
+#   Copyright (c) 2026 PX4 Development Team. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name PX4 nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+
+set(PX4_FW_NAME ${PX4_BINARY_DIR}/${PX4_BOARD_VENDOR}_${PX4_BOARD_MODEL}_${PX4_BOARD_LABEL}.px4)
+
+add_custom_target(upload_skynode_usb
+	COMMAND ${PX4_SOURCE_DIR}/Tools/auterion/upload_skynode.sh --file=${PX4_FW_NAME}
+	DEPENDS ${PX4_FW_NAME}
+	COMMENT "Uploading PX4"
+	USES_TERMINAL
+)
+
+add_custom_target(upload_skynode_wifi
+	COMMAND ${PX4_SOURCE_DIR}/Tools/auterion/upload_skynode.sh --file=${PX4_FW_NAME} --wifi
+	DEPENDS ${PX4_FW_NAME}
+	COMMENT "Uploading PX4"
+	USES_TERMINAL
+)

boards/cuav/x25-mega/default.px4board

@@ -0,0 +1,91 @@
+CONFIG_BOARD_TOOLCHAIN="arm-none-eabi"
+CONFIG_BOARD_ARCHITECTURE="cortex-m7"
+CONFIG_BOARD_ETHERNET=y
+CONFIG_BOARD_SERIAL_GPS1="/dev/ttyS0"
+CONFIG_BOARD_SERIAL_GPS2="/dev/ttyS1"
+CONFIG_BOARD_SERIAL_TEL1="/dev/ttyS6"
+CONFIG_BOARD_SERIAL_TEL2="/dev/ttyS4"
+CONFIG_BOARD_SERIAL_EXT2="/dev/ttyS3"
+CONFIG_DRIVERS_ADC_ADS1115=y
+CONFIG_DRIVERS_ADC_BOARD_ADC=y
+CONFIG_DRIVERS_BAROMETER_BMP581=y
+CONFIG_DRIVERS_BAROMETER_INVENSENSE_ICP201XX=y
+CONFIG_DRIVERS_CAMERA_CAPTURE=y
+CONFIG_DRIVERS_CAMERA_TRIGGER=y
+CONFIG_DRIVERS_CDCACM_AUTOSTART=y
+CONFIG_COMMON_DIFFERENTIAL_PRESSURE=y
+CONFIG_COMMON_DISTANCE_SENSOR=y
+CONFIG_DRIVERS_DSHOT=y
+CONFIG_DRIVERS_GPS=y
+CONFIG_DRIVERS_HEATER=y
+CONFIG_DRIVERS_IMU_ANALOG_DEVICES_ADIS16607=y
+CONFIG_DRIVERS_IMU_INVENSENSE_IIM42652=y
+CONFIG_DRIVERS_IMU_INVENSENSE_IIM42653=y
+CONFIG_COMMON_LIGHT=y
+CONFIG_COMMON_MAGNETOMETER=y
+CONFIG_DRIVERS_OSD_MSP_OSD=y
+CONFIG_DRIVERS_POWER_MONITOR_INA226=y
+CONFIG_DRIVERS_POWER_MONITOR_INA228=y
+CONFIG_DRIVERS_POWER_MONITOR_INA238=y
+CONFIG_DRIVERS_PWM_OUT=y
+CONFIG_DRIVERS_RC_INPUT=y
+CONFIG_DRIVERS_SAFETY_BUTTON=y
+CONFIG_DRIVERS_TONE_ALARM=y
+CONFIG_DRIVERS_UAVCAN=y
+CONFIG_BOARD_UAVCAN_TIMER_OVERRIDE=2
+CONFIG_MODULES_AIRSPEED_SELECTOR=y
+CONFIG_MODULES_BATTERY_STATUS=y
+CONFIG_MODULES_CAMERA_FEEDBACK=y
+CONFIG_MODULES_COMMANDER=y
+CONFIG_MODULES_CONTROL_ALLOCATOR=y
+CONFIG_MODULES_DATAMAN=y
+CONFIG_MODULES_EKF2=y
+CONFIG_MODULES_ESC_BATTERY=y
+CONFIG_MODULES_EVENTS=y
+CONFIG_MODULES_FLIGHT_MODE_MANAGER=y
+CONFIG_MODULES_FW_ATT_CONTROL=y
+CONFIG_MODULES_FW_AUTOTUNE_ATTITUDE_CONTROL=y
+CONFIG_MODULES_FW_RATE_CONTROL=y
+CONFIG_MODULES_GIMBAL=y
+CONFIG_MODULES_GYRO_CALIBRATION=y
+CONFIG_MODULES_LAND_DETECTOR=y
+CONFIG_MODULES_LANDING_TARGET_ESTIMATOR=y
+CONFIG_MODULES_LOAD_MON=y
+CONFIG_MODULES_LOGGER=y
+CONFIG_MODULES_MAG_BIAS_ESTIMATOR=y
+CONFIG_MODULES_MANUAL_CONTROL=y
+CONFIG_MODULES_MAVLINK=y
+CONFIG_MODULES_MC_ATT_CONTROL=y
+CONFIG_MODULES_MC_AUTOTUNE_ATTITUDE_CONTROL=y
+CONFIG_MODULES_MC_HOVER_THRUST_ESTIMATOR=y
+CONFIG_MODULES_MC_POS_CONTROL=y
+CONFIG_MODULES_MC_RATE_CONTROL=y
+CONFIG_MODULES_NAVIGATOR=y
+CONFIG_MODULES_RC_UPDATE=y
+CONFIG_MODULES_SENSORS=y
+CONFIG_MODULES_SIMULATION_SIMULATOR_SIH=y
+CONFIG_MODULES_TEMPERATURE_COMPENSATION=y
+CONFIG_MODULES_UXRCE_DDS_CLIENT=y
+CONFIG_MODULES_VTOL_ATT_CONTROL=y
+CONFIG_SYSTEMCMDS_ACTUATOR_TEST=y
+CONFIG_SYSTEMCMDS_BSONDUMP=y
+CONFIG_SYSTEMCMDS_DMESG=y
+CONFIG_SYSTEMCMDS_GPIO=y
+CONFIG_SYSTEMCMDS_HARDFAULT_LOG=y
+CONFIG_SYSTEMCMDS_I2CDETECT=y
+CONFIG_SYSTEMCMDS_LED_CONTROL=y
+CONFIG_SYSTEMCMDS_MFT=y
+CONFIG_SYSTEMCMDS_MTD=y
+CONFIG_SYSTEMCMDS_NETMAN=y
+CONFIG_SYSTEMCMDS_NSHTERM=y
+CONFIG_SYSTEMCMDS_PARAM=y
+CONFIG_SYSTEMCMDS_PERF=y
+CONFIG_SYSTEMCMDS_REBOOT=y
+CONFIG_SYSTEMCMDS_SYSTEM_TIME=y
+CONFIG_SYSTEMCMDS_TOP=y
+CONFIG_SYSTEMCMDS_TOPIC_LISTENER=y
+CONFIG_SYSTEMCMDS_TUNE_CONTROL=y
+CONFIG_SYSTEMCMDS_UORB=y
+CONFIG_SYSTEMCMDS_VER=y
+CONFIG_SYSTEMCMDS_WORK_QUEUE=y
+CONFIG_ARCH_CHIP_STM32H7=y

boards/cuav/x25-mega/firmware.prototype

@@ -0,0 +1,13 @@
+{
+    "board_id": 7004,
+    "magic": "PX4FWv1",
+    "description": "Firmware for the CUAVX25MEGA board",
+    "image": "",
+    "build_time": 0,
+    "summary": "CUAVX25MEGA",
+    "version": "0.1",
+    "image_size": 0,
+    "image_maxsize": 1966080,
+    "git_identity": "",
+    "board_revision": 0
+}

boards/cuav/x25-mega/init/rc.board_defaults

@@ -0,0 +1,39 @@
+#!/bin/sh
+#
+# board specific defaults
+#------------------------------------------------------------------------------
+
+# Mavlink ethernet (CFG 1000)
+param set-default MAV_2_CONFIG 1000
+param set-default MAV_2_BROADCAST 1
+param set-default MAV_2_MODE 0
+param set-default MAV_2_RADIO_CTL 0
+param set-default MAV_2_RATE 100000
+param set-default MAV_2_REMOTE_PRT 14550
+param set-default MAV_2_UDP_PRT 14550
+
+param set-default SENS_EN_INA238 0
+param set-default SENS_EN_INA228 0
+param set-default SENS_EN_INA226 0
+
+param set-default USB_MAV_MODE 5
+
+param set-default UAVCAN_SUB_GPS 1
+param set-default UAVCAN_SUB_BAT 1
+
+# IMU thermal control (multi-instance heater)
+# HEATER1_IMU_ID: 6029322(ADIS16607 SPI1)
+# HEATER2_IMU_ID: 3014698(IIM42653 SPI5)
+param set-default SENS_EN_THERMAL 1
+param set-default HEATER1_IMU_ID 6029322
+param set-default HEATER1_TEMP 45
+param set-default HEATER2_IMU_ID 3014698
+param set-default HEATER2_TEMP 45
+
+# CUAV pwm voltage 3.3V/5V switch
+pwm_voltage_apply start
+
+safety_button start
+
+# Update IP config if needed
+netman update -i eth0

boards/cuav/x25-mega/init/rc.board_sensors

@@ -0,0 +1,63 @@
+#!/bin/sh
+#
+# CUAV X25-MEGA specific board sensors init
+#------------------------------------------------------------------------------
+set HAVE_PM2 yes
+
+if mft query -q -k MFT -s MFT_PM2 -v 0
+then
+	set HAVE_PM2 no
+fi
+
+if param compare -s ADC_ADS1115_EN 1
+then
+	ads1115 start -X
+	board_adc start -n
+else
+	board_adc start
+fi
+
+if param compare SENS_EN_INA226 1
+then
+	# Start Digital power monitors
+	ina226 -X -b 1 -t 1 -k start
+
+	if [ $HAVE_PM2 = yes ]
+	then
+		ina226 -X -b 2 -t 2 -k start
+	fi
+fi
+
+if param compare SENS_EN_INA228 1
+then
+	# Start Digital power monitors
+	ina228 -X -b 1 -t 1 -k start
+	if [ $HAVE_PM2 = yes ]
+	then
+		ina228 -X -b 2 -t 2 -k start
+	fi
+fi
+
+if param compare SENS_EN_INA238 1
+then
+	# Start Digital power monitors
+	ina238 -X -b 1 -t 1 -k start
+	if [ $HAVE_PM2 = yes ]
+	then
+		ina238 -X -b 2 -t 2 -k start
+	fi
+fi
+
+adis16607 -s -b 1 start
+iim42652 -s -b 2 -R 2 -C 32768 start
+iim42653 -s -b 5 -R 12 start
+
+rm3100 -s -b 4 start
+
+bmp581 -s -b 4 start
+icp201xx -I -b 4 start
+
+# External compass on GPS1/I2C1 (the 3rd external bus): standard Holybro Pixhawk 4 or CUAV V5 GPS/compass puck (with lights, safety button, and buzzer)
+ist8310 -X -b 1 -R 10 start
+
+unset HAVE_PM2

boards/cuav/x25-mega/nuttx-config/Kconfig

@@ -0,0 +1,17 @@
+#
+# For a description of the syntax of this configuration file,
+# see misc/tools/kconfig-language.txt.
+#
+config BOARD_HAS_PROBES
+	bool "Board provides GPIO or other Hardware for signaling to timing analyze."
+	default y
+	---help---
+		This board provides GPIO FMU-CH1-5, CAP1-6 as PROBE_1-11 to provide timing signals from selected drivers.
+
+config BOARD_USE_PROBES
+	bool "Enable the use the board provided FMU-CH1-5, CAP1-6 as PROBE_1-11"
+	default n
+	depends on BOARD_HAS_PROBES
+
+	---help---
+		Select to use GPIO FMU-CH1-5, CAP1-6  to provide timing signals from selected drivers.