Simplify platformio.ini with 'extends' (#16035)

- Add [env] with default settings
- Use 'extends' to shrink similar env entries

platformio.ini

   SailfishRGB_LED=https://github.com/mikeshub/SailfishRGB_LED/archive/master.zip
   SlowSoftI2CMaster=https://github.com/mikeshub/SlowSoftI2CMaster/archive/master.zip
 
+# Globally defined properties
+# inherited by all environments
+[env]
+framework   = arduino
+build_flags = ${common.build_flags}
+lib_deps    = ${common.lib_deps}
+
 #################################
 #                               #
 #   Unique Core Architectures   #
 #
 [env:megaatmega2560]
 platform          = atmelavr
-framework         = arduino
 board             = megaatmega2560
-build_flags       = ${common.build_flags}
 board_build.f_cpu = 16000000L
 lib_deps          = ${common.lib_deps}
   TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
 # ATmega1280
 #
 [env:megaatmega1280]
-platform          = atmelavr
-framework         = arduino
+extends           = env:megaatmega2560
 board             = megaatmega1280
-build_flags       = ${common.build_flags}
-board_build.f_cpu = 16000000L
-lib_deps          = ${common.lib_deps}
+
+#
+# RAMBo
+#
+[env:rambo]
+extends           = env:megaatmega2560
+board             = reprap_rambo
+
+#
+# FYSETC F6 V1.3
+#
+[env:fysetc_f6_13]
+extends           = env:megaatmega2560
+board             = fysetc_f6_13
+
+#
+# Sanguinololu (ATmega644p)
+#
+[env:sanguino_atmega644p]
+platform      = atmelavr
+board         = sanguino_atmega644p
+lib_deps      = ${common.lib_deps}
   TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_AVR>
-monitor_speed     = 250000
+src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
+monitor_speed = 250000
+
+#
+# Sanguinololu (ATmega1284p)
+#
+[env:sanguino_atmega1284p]
+extends       = env:sanguino_atmega644p
+board         = sanguino_atmega1284p
+
+#
+# Melzi and clones (ATmega1284p)
+#
+[env:melzi]
+extends       = env:sanguino_atmega1284p
+build_flags   = ${common.build_flags} -fmerge-all-constants
+lib_ignore    = TMCStepper
+upload_speed  = 57600
+
+#
+# Melzi and clones (Optiboot bootloader)
+#
+[env:melzi_optiboot]
+extends       = env:melzi
+upload_speed  = 115200
 
 #
 # AT90USB1286 boards using CDC bootloader
 #
 [env:at90usb1286_cdc]
 platform      = teensy
-framework     = arduino
 board         = at90usb1286
-build_flags   = ${common.build_flags}
 lib_deps      = ${common.lib_deps}
   TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
 src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
 # - ? 5DPRINT ?
 #
 [env:at90usb1286_dfu]
-platform      = teensy
-framework     = arduino
-board         = at90usb1286
-build_flags   = ${common.build_flags}
-lib_deps      = ${common.lib_deps}
-  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
-monitor_speed = 250000
+extends       = env:at90usb1286_cdc
 
 #
 # Due (Atmel SAM3X8E ARM Cortex-M3)
 #
 [env:DUE]
 platform      = atmelsam
-framework     = arduino
 board         = due
-build_flags   = ${common.build_flags}
-lib_deps      = ${common.lib_deps}
 src_filter    = ${common.default_src_filter} +<src/HAL/HAL_DUE>
 monitor_speed = 250000
+
 [env:DUE_USB]
-platform      = atmelsam
-framework     = arduino
+extends       = env:DUE
 board         = dueUSB
-build_flags   = ${common.build_flags}
-lib_deps      = ${common.lib_deps}
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_DUE>
-monitor_speed = 250000
+
 [env:DUE_debug]
 # Used when WATCHDOG_RESET_MANUAL is enabled
-platform      = atmelsam
-framework     = arduino
-board         = due
+extends       = env:DUE
 build_flags   = ${common.build_flags}
   -funwind-tables
   -mpoke-function-name
-lib_deps      = ${common.lib_deps}
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_DUE>
-monitor_speed = 250000
 
 #
 # NXP LPC176x ARM Cortex-M3
 #
 [env:LPC1768]
 platform          = https://github.com/p3p/pio-nxplpc-arduino-lpc176x/archive/0.1.2.zip
-framework         = arduino
 board             = nxp_lpc1768
 build_flags       = -DU8G_HAL_LINKS -IMarlin/src/HAL/HAL_LPC1768/include -IMarlin/src/HAL/HAL_LPC1768/u8g ${common.build_flags}
 # debug options for backtrace
 board             = nxp_lpc1769
 
 #
-# Sanguinololu (ATmega644p)
-#
-[env:sanguino_atmega644p]
-platform      = atmelavr
-framework     = arduino
-board         = sanguino_atmega644p
-build_flags   = ${common.build_flags}
-lib_deps      = ${common.lib_deps}
-  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
-monitor_speed = 250000
-
-#
-# Sanguinololu (ATmega1284p)
-#
-[env:sanguino_atmega1284p]
-platform      = atmelavr
-framework     = arduino
-board         = sanguino_atmega1284p
-build_flags   = ${common.build_flags}
-lib_deps      = ${common.lib_deps}
-  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
-monitor_speed = 250000
-
+# STM32F1 base
 #
-# Melzi and clones (ATmega1284p)
-#
-[env:melzi]
-platform      = atmelavr
-framework     = arduino
-board         = sanguino_atmega1284p
-build_flags   = ${common.build_flags} -fmerge-all-constants
-upload_speed  = 57600
-lib_deps      = ${common.lib_deps}
-lib_ignore    = TMCStepper
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
-monitor_speed = 250000
-
-#
-# Melzi and clones (Optiboot bootloader)
-#
-[env:melzi_optiboot]
-platform      = atmelavr
-framework     = arduino
-board         = sanguino_atmega1284p
-build_flags   = ${common.build_flags}
-upload_speed  = 115200
-lib_deps      = ${common.lib_deps}
-lib_ignore    = TMCStepper
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_AVR>
+[env:STM32F1_base]
+platform      = ststm32
+build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
+  ${common.build_flags} -std=gnu++14
+build_unflags = -std=gnu++11
+src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
+lib_ignore    = Adafruit NeoPixel, SPI
 monitor_speed = 250000
 
 #
-# RAMBo
+# STM32F103RC
 #
-[env:rambo]
-platform          = atmelavr
-framework         = arduino
-board             = reprap_rambo
-build_flags       = ${common.build_flags}
-board_build.f_cpu = 16000000L
+[env:STM32F103RC_base]
+extends           = env:STM32F1_base
+board             = genericSTM32F103RC
+platform_packages = tool-stm32duino
 lib_deps          = ${common.lib_deps}
-  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_AVR>
-monitor_speed     = 250000
+  SoftwareSerialM=https://github.com/FYSETC/SoftwareSerialM/archive/master.zip
+monitor_speed     = 115200
 
 #
 # STM32F103RE
 #
 [env:STM32F103RE]
-platform      = ststm32
-framework     = arduino
-board         = genericSTM32F103RE
-build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
-  ${common.build_flags} -std=gnu++14
-  -DDEBUG_LEVEL=0
-build_unflags = -std=gnu++11
-lib_deps      = ${common.lib_deps}
-lib_ignore    = Adafruit NeoPixel, SPI
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-monitor_speed = 250000
-debug_tool    = stlink
+extends         = env:STM32F1_base
+board           = genericSTM32F103RE
+build_flags     = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
+  ${common.build_flags} -std=gnu++14 -DDEBUG_LEVEL=0
+src_filter      = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
+debug_tool      = stlink
 upload_protocol = stlink
 
 #
 # STM32F103RC_fysetc
 #
 [env:STM32F103RC_fysetc]
-platform          = ststm32
-framework         = arduino
-board             = genericSTM32F103RC
+extends           = env:STM32F103RC_base
 #board_build.core = maple
-platform_packages = tool-stm32duino
 extra_scripts     = buildroot/share/PlatformIO/scripts/STM32F103RC_fysetc.py
 build_flags       = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
-  ${common.build_flags} -std=gnu++14
-  -DDEBUG_LEVEL=0 -DHAVE_SW_SERIAL
-build_unflags     = -std=gnu++11
-lib_deps          = ${common.lib_deps}
-  SoftwareSerialM=https://github.com/FYSETC/SoftwareSerialM/archive/master.zip
-lib_ignore        = Adafruit NeoPixel, SPI
+  ${common.build_flags} -std=gnu++14 -DDEBUG_LEVEL=0 -DHAVE_SW_SERIAL
 lib_ldf_mode      = chain
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-monitor_speed     = 250000
 debug_tool        = stlink
 upload_protocol   = serial
+monitor_speed     = 250000
 
 #
 # BigTree SKR Mini V1.1 / SKR mini E3 / SKR E3 DIP (STM32F103RCT6 ARM Cortex-M3)
 #
 
 [env:STM32F103RC_bigtree]
-platform          = ststm32
-framework         = arduino
-board             = genericSTM32F103RC
-platform_packages = tool-stm32duino
+extends           = env:STM32F103RC_base
 extra_scripts     = buildroot/share/PlatformIO/scripts/STM32F103RC_SKR_MINI.py
 build_flags       = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
   ${common.build_flags} -DDEBUG_LEVEL=0 -std=gnu++14 -DHAVE_SW_SERIAL -DSS_TIMER=4
-build_unflags     = -std=gnu++11
-lib_deps          = ${common.lib_deps}
-  SoftwareSerialM=https://github.com/FYSETC/SoftwareSerialM/archive/master.zip
-lib_ignore        = Adafruit NeoPixel, SPI
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-monitor_speed     = 115200
 
 [env:STM32F103RC_bigtree_USB]
-platform          = ststm32
-framework         = arduino
-board             = genericSTM32F103RC
-platform_packages = tool-stm32duino
-extra_scripts     = buildroot/share/PlatformIO/scripts/STM32F103RC_SKR_MINI.py
+extends           = env:STM32F103RC_bigtree
 build_flags       = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
-  ${common.build_flags} -DDEBUG_LEVEL=0 -std=gnu++14 -DUSE_USB_COMPOSITE -DHAVE_SW_SERIAL -DSS_TIMER=4
-build_unflags     = -std=gnu++11
-lib_deps          = ${common.lib_deps}
-  SoftwareSerialM=https://github.com/FYSETC/SoftwareSerialM/archive/master.zip
-lib_ignore        = Adafruit NeoPixel, SPI
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-monitor_speed     = 115200
+  ${common.build_flags} -DDEBUG_LEVEL=0 -std=gnu++14 -DHAVE_SW_SERIAL -DSS_TIMER=4 -DUSE_USB_COMPOSITE
 
 [env:STM32F103RC_bigtree_512K]
-platform          = ststm32
-framework         = arduino
-board             = genericSTM32F103RC
+extends           = env:STM32F103RC_bigtree
 board_upload.maximum_size=524288
-platform_packages = tool-stm32duino
-extra_scripts     = buildroot/share/PlatformIO/scripts/STM32F103RC_SKR_MINI.py
 build_flags       = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
   ${common.build_flags} -DDEBUG_LEVEL=0 -std=gnu++14 -DHAVE_SW_SERIAL -DSS_TIMER=4 -DSTM32_FLASH_SIZE=512
-build_unflags     = -std=gnu++11
-lib_deps          = ${common.lib_deps}
-  SoftwareSerialM=https://github.com/FYSETC/SoftwareSerialM/archive/master.zip
-lib_ignore        = Adafruit NeoPixel, SPI
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-monitor_speed     = 115200
 
 [env:STM32F103RC_bigtree_512K_USB]
-platform          = ststm32
-framework         = arduino
-board             = genericSTM32F103RC
+extends           = env:STM32F103RC_bigtree_512K
 board_upload.maximum_size=524288
-platform_packages = tool-stm32duino
-extra_scripts     = buildroot/share/PlatformIO/scripts/STM32F103RC_SKR_MINI.py
 build_flags       = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
-  ${common.build_flags} -DDEBUG_LEVEL=0 -std=gnu++14 -DUSE_USB_COMPOSITE -DHAVE_SW_SERIAL -DSS_TIMER=4 -DSTM32_FLASH_SIZE=512
-build_unflags     = -std=gnu++11
-lib_deps          = ${common.lib_deps}
-  SoftwareSerialM=https://github.com/FYSETC/SoftwareSerialM/archive/master.zip
-lib_ignore        = Adafruit NeoPixel, SPI
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-monitor_speed     = 115200
+  ${common.build_flags} -DDEBUG_LEVEL=0 -std=gnu++14 -DHAVE_SW_SERIAL -DSS_TIMER=4 -DSTM32_FLASH_SIZE=512 -DUSE_USB_COMPOSITE
 
 [env:STM32F103RE_bigtree]
-platform          = ststm32
-framework         = arduino
+extends           = env:STM32F1_base
 board             = genericSTM32F103RE
 board_upload.maximum_size=524288
 platform_packages = tool-stm32duino
 extra_scripts     = buildroot/share/PlatformIO/scripts/STM32F103RE_SKR_E3_DIP.py
 build_flags       = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
   ${common.build_flags} -DDEBUG_LEVEL=0 -std=gnu++14 -DHAVE_SW_SERIAL -DSS_TIMER=4
-build_unflags     = -std=gnu++11
 lib_deps          = ${common.lib_deps}
   SoftwareSerialM=https://github.com/FYSETC/SoftwareSerialM/archive/master.zip
-lib_ignore        = Adafruit NeoPixel, SPI
 src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
 monitor_speed     = 115200
 
 [env:STM32F103RE_bigtree_USB]
-platform          = ststm32
-framework         = arduino
-board             = genericSTM32F103RE
-board_upload.maximum_size=524288
-platform_packages = tool-stm32duino
-extra_scripts     = buildroot/share/PlatformIO/scripts/STM32F103RE_SKR_E3_DIP.py
+extends           = env:STM32F103RE_bigtree
 build_flags       = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
   ${common.build_flags} -DDEBUG_LEVEL=0 -std=gnu++14 -DUSE_USB_COMPOSITE -DHAVE_SW_SERIAL -DSS_TIMER=4
-build_unflags     = -std=gnu++11
-lib_deps          = ${common.lib_deps}
-  SoftwareSerialM=https://github.com/FYSETC/SoftwareSerialM/archive/master.zip
-lib_ignore        = Adafruit NeoPixel, SPI
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-monitor_speed     = 115200
 
 #
 # STM32F4 with STM32GENERIC
 #
 [env:STM32F4]
 platform      = ststm32
-framework     = arduino
 board         = disco_f407vg
 build_flags   = ${common.build_flags} -DUSE_STM32GENERIC -DSTM32GENERIC -DSTM32F4 -DMENU_USB_SERIAL -DMENU_SERIAL=SerialUSB -DHAL_IWDG_MODULE_ENABLED
-lib_deps      = ${common.lib_deps}
 lib_ignore    = Adafruit NeoPixel, TMCStepper
 src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32_F4_F7> -<src/HAL/HAL_STM32_F4_F7/STM32F7>
 monitor_speed = 250000
 
 #
-# FYSETC S6 (STM32F446VET6 ARM Cortex-M4)
-#
-[env:FYSETC_S6]
-platform          = ststm32
-framework         = arduino
-board             = fysetc_s6
-extra_scripts     = buildroot/share/PlatformIO/scripts/fysetc_STM32S6.py
-build_flags       = ${common.build_flags}
-  -DTARGET_STM32F4 -std=gnu++14
-  -DVECT_TAB_OFFSET=0x10000
-  -DUSBCON -DUSBD_USE_CDC -DHAL_PCD_MODULE_ENABLED -DUSBD_VID=0x0483 '-DUSB_PRODUCT="FYSETC_S6"'
-build_unflags     = -std=gnu++11
-lib_deps          = ${common.lib_deps}
-lib_ignore        = Arduino-L6470
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32>
-monitor_speed     = 250000
-platform_packages = tool-stm32duino
-debug_tool        = stlink
-#upload_protocol   = stlink
-upload_protocol   = serial
-
-#
 # STM32F7 with STM32GENERIC
 #
 [env:STM32F7]
 platform      = ststm32
-framework     = arduino
 board         = remram_v1
 build_flags   = ${common.build_flags} -DUSE_STM32GENERIC -DSTM32GENERIC -DSTM32F7 -DMENU_USB_SERIAL -DMENU_SERIAL=SerialUSB -DHAL_IWDG_MODULE_ENABLED
-lib_deps      = ${common.lib_deps}
 lib_ignore    = Adafruit NeoPixel, TMCStepper
 src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32_F4_F7> -<src/HAL/HAL_STM32_F4_F7/STM32F4>
 monitor_speed = 250000
 #
 [env:ARMED]
 platform      = ststm32
-framework     = arduino
 board         = armed_v1
 build_flags   = ${common.build_flags}
   -DUSBCON -DUSBD_VID=0x0483 '-DUSB_MANUFACTURER="Unknown"' '-DUSB_PRODUCT="ARMED_V1"' -DUSBD_USE_CDC
   -O2 -ffreestanding -fsigned-char -fno-move-loop-invariants -fno-strict-aliasing -std=gnu11 -std=gnu++11
   -IMarlin/src/HAL/HAL_STM32
-lib_deps      = ${common.lib_deps}
 lib_ignore    = Adafruit NeoPixel, SoftwareSerial
 src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32>
 monitor_speed = 250000
 # Longer 3D board in Alfawise U20 (STM32F103VET6)
 #
 [env:STM32F103VE_longer]
-platform      = ststm32
-framework     = arduino
+extends       = env:STM32F1_base
 board         = genericSTM32F103VE
-monitor_speed = 250000
 extra_scripts = buildroot/share/PlatformIO/scripts/STM32F103VE_longer.py
 build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
   ${common.build_flags} -std=gnu++14 -USERIAL_USB
   -DSTM32F1xx -DU20 -DTS_V12
 build_unflags = -std=gnu++11 -DCONFIG_MAPLE_MINI_NO_DISABLE_DEBUG=1 -DERROR_LED_PORT=GPIOE -DERROR_LED_PIN=6
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-lib_deps      = ${common.lib_deps}
 lib_ignore    = Adafruit NeoPixel, LiquidTWI2, SPI
 
 #
 # MKS Robin (STM32F103ZET6)
 #
 [env:mks_robin]
-platform      = ststm32
-framework     = arduino
+extends       = env:STM32F1_base
 board         = genericSTM32F103ZE
 extra_scripts = buildroot/share/PlatformIO/scripts/mks_robin.py
 build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
   ${common.build_flags} -std=gnu++14 -DSTM32_XL_DENSITY
-build_unflags = -std=gnu++11
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-lib_deps      = ${common.lib_deps}
-lib_ignore    = Adafruit NeoPixel, SPI
 
 #
 # MKS ROBIN LITE/LITE2 (STM32F103RCT6)
 #
 [env:mks_robin_lite]
-platform      = ststm32
-framework     = arduino
+extends       = env:STM32F1_base
 board         = genericSTM32F103RC
 extra_scripts = buildroot/share/PlatformIO/scripts/mks_robin_lite.py
-build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
-  ${common.build_flags} -std=gnu++14
-build_unflags = -std=gnu++11
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-lib_deps      = ${common.lib_deps}
-lib_ignore    = Adafruit NeoPixel, SPI
 
 #
 # MKS Robin Mini (STM32F103VET6)
 #
 [env:mks_robin_mini]
-platform      = ststm32
-framework     = arduino
+extends       = env:STM32F1_base
 board         = genericSTM32F103VE
 extra_scripts = buildroot/share/PlatformIO/scripts/mks_robin_mini.py
-build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
-  ${common.build_flags} -std=gnu++14
-build_unflags = -std=gnu++11
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-lib_deps      = ${common.lib_deps}
-lib_ignore    = Adafruit NeoPixel, SPI
 
 #
 # MKS Robin Nano (STM32F103VET6)
 #
 [env:mks_robin_nano]
-platform      = ststm32
-framework     = arduino
+extends       = env:STM32F1_base
 board         = genericSTM32F103VE
 extra_scripts = buildroot/share/PlatformIO/scripts/mks_robin_nano.py
-build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
-  ${common.build_flags} -std=gnu++14
-build_unflags = -std=gnu++11
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-lib_deps      = ${common.lib_deps}
-lib_ignore    = Adafruit NeoPixel, SPI
 
 #
 # JGAurora A5S A1 (STM32F103ZET6)
 #
 [env:jgaurora_a5s_a1]
-platform      = ststm32
-framework     = arduino
+extends       = env:STM32F1_base
 board         = genericSTM32F103ZE
 extra_scripts = buildroot/share/PlatformIO/scripts/jgaurora_a5s_a1_with_bootloader.py
 build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
   ${common.build_flags} -DSTM32F1xx -std=gnu++14 -DSTM32_XL_DENSITY
+
+#
+# Malyan M200 (STM32F103CB)
+#
+[env:STM32F103CB_malyan]
+platform    = ststm32
+board       = malyanM200
+build_flags = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py -DMCU_STM32F103CB -D __STM32F1__=1 -std=c++1y -D MOTHERBOARD="BOARD_MALYAN_M200" -DSERIAL_USB -ffunction-sections -fdata-sections -Wl,--gc-sections
+  -DDEBUG_LEVEL=0 -D__MARLIN_FIRMWARE__
+src_filter  = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
+lib_ignore  = Adafruit NeoPixel, LiquidCrystal, LiquidTWI2, TMCStepper, U8glib-HAL, SPI
+
+#
+# Chitu boards like Tronxy X5s (STM32F103ZET6)
+#
+[env:chitu_f103]
+extends       = env:STM32F1_base
+board         = genericSTM32F103ZE
+extra_scripts = buildroot/share/PlatformIO/scripts/chitu_crypt.py
+build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
+  ${common.build_flags} -DSTM32F1xx -std=gnu++14 -DSTM32_XL_DENSITY
+build_unflags = -std=gnu++11 -DCONFIG_MAPLE_MINI_NO_DISABLE_DEBUG= -DERROR_LED_PORT=GPIOE -DERROR_LED_PIN=6
+lib_ignore    = Adafruit NeoPixel
+
+#
+# STM32 HAL environments
+#
+[env:STM32_hal]
+platform      = ststm32
 build_unflags = -std=gnu++11
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-lib_deps      = ${common.lib_deps}
-lib_ignore    = Adafruit NeoPixel, SPI
+src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32>
 monitor_speed = 250000
 
 #
+# FYSETC S6 (STM32F446VET6 ARM Cortex-M4)
+#
+[env:FYSETC_S6]
+extends           = env:STM32_hal
+board             = fysetc_s6
+extra_scripts     = buildroot/share/PlatformIO/scripts/fysetc_STM32S6.py
+build_flags       = ${common.build_flags}
+  -DTARGET_STM32F4 -std=gnu++14
+  -DVECT_TAB_OFFSET=0x10000
+  -DUSBCON -DUSBD_USE_CDC -DHAL_PCD_MODULE_ENABLED -DUSBD_VID=0x0483 '-DUSB_PRODUCT="FYSETC_S6"'
+lib_ignore        = Arduino-L6470
+platform_packages = tool-stm32duino
+debug_tool        = stlink
+#upload_protocol   = stlink
+upload_protocol   = serial
+
+#
 # STM32F407VET6 with RAMPS-like shield
 # 'Black' STM32F407VET6 board - http://wiki.stm32duino.com/index.php?title=STM32F407
 # Shield - https://github.com/jmz52/Hardware
 #
 [env:STM32F407VE_black]
-platform          = ststm32
-framework         = arduino
+extends           = env:STM32_hal
 platform_packages = framework-arduinoststm32@>=3.10700.191028
 board             = blackSTM32F407VET6
 extra_scripts     = pre:buildroot/share/PlatformIO/scripts/generic_create_variant.py
  -DTARGET_STM32F4 -DARDUINO_BLACK_F407VE
  -DUSBCON -DUSBD_USE_CDC -DUSBD_VID=0x0483 -DUSB_PRODUCT=\"BLACK_F407VE\"
   -IMarlin/src/HAL/HAL_STM32
-lib_deps          = ${common.lib_deps}
 lib_ignore        = Adafruit NeoPixel, TMCStepper, SailfishLCD, SailfishRGB_LED, SlowSoftI2CMaster, SoftwareSerial
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32>
-monitor_speed     = 250000
 
 #
 # Bigtreetech SKR Pro (STM32F407ZGT6 ARM Cortex-M4)
 #
 [env:BIGTREE_SKR_PRO]
-platform          = ststm32
-framework         = arduino
+extends           = env:STM32_hal
 platform_packages = framework-arduinoststm32@>=3.10700.191028
 board             = BigTree_SKR_Pro
 extra_scripts     = pre:buildroot/share/PlatformIO/scripts/generic_create_variant.py
   LiquidTWI2=https://github.com/lincomatic/LiquidTWI2/archive/master.zip
   Arduino-L6470=https://github.com/ameyer/Arduino-L6470/archive/dev.zip
 lib_ignore        = SoftwareSerial, SoftwareSerialM
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_STM32>
-monitor_speed     = 250000
 
 #
 # BIGTREE_SKR_BTT002 (STM32F407VET6 ARM Cortex-M4)
 #
 [env:BIGTREE_BTT002]
+extends       = env:STM32_hal
 platform      = ststm32@5.6.0
-framework     = arduino
 board         = BigTree_Btt002
 extra_scripts = pre:buildroot/share/PlatformIO/scripts/generic_create_variant.py
 build_flags   = ${common.build_flags}
   -DHAVE_HWSERIAL3
   -DPIN_SERIAL2_RX=PD_6
   -DPIN_SERIAL2_TX=PD_5
-lib_deps      = ${common.lib_deps}
 lib_ignore    = Adafruit NeoPixel, SailfishLCD, SailfishRGB_LED, SlowSoftI2CMaster
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32>
-monitor_speed = 250000
 
 #
 # Teensy 3.1 / 3.2 (ARM Cortex-M4)
 #
 [env:teensy31]
 platform      = teensy
-framework     = arduino
 board         = teensy31
-build_flags   = ${common.build_flags}
 lib_deps      = ${common.lib_deps}
   TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
 lib_ignore    = Adafruit NeoPixel
 monitor_speed = 250000
 
 #
-# Malyan M200 (STM32F103CB)
-#
-[env:STM32F103CB_malyan]
-platform    = ststm32
-framework   = arduino
-board       = malyanM200
-build_flags = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py -DMCU_STM32F103CB -D __STM32F1__=1 -std=c++1y -D MOTHERBOARD="BOARD_MALYAN_M200" -DSERIAL_USB -ffunction-sections -fdata-sections -Wl,--gc-sections
-  -DDEBUG_LEVEL=0 -D__MARLIN_FIRMWARE__
-src_filter  = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-lib_ignore  = Adafruit NeoPixel, LiquidCrystal, LiquidTWI2, TMCStepper, U8glib-HAL, SPI
-
-#
-# Chitu boards like Tronxy X5s (STM32F103ZET6)
-#
-[env:chitu_f103]
-platform      = ststm32
-framework     = arduino
-board         = genericSTM32F103ZE
-extra_scripts = buildroot/share/PlatformIO/scripts/chitu_crypt.py
-build_flags   = !python Marlin/src/HAL/HAL_STM32F1/build_flags.py
-  ${common.build_flags} -DSTM32F1xx -std=gnu++14 -DSTM32_XL_DENSITY
-build_unflags = -std=gnu++11 -DCONFIG_MAPLE_MINI_NO_DISABLE_DEBUG= -DERROR_LED_PORT=GPIOE -DERROR_LED_PIN=6
-src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
-lib_deps      = ${common.lib_deps}
-lib_ignore    = Adafruit NeoPixel
-
-#
 # Teensy 3.5 / 3.6 (ARM Cortex-M4)
 #
 [env:teensy35]
-platform      = teensy
-framework     = arduino
+extends       = env:teensy31
 board         = teensy35
-build_flags   = ${common.build_flags}
-lib_deps      = ${common.lib_deps}
-  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
-lib_ignore    = Adafruit NeoPixel
 src_filter    = ${common.default_src_filter} +<src/HAL/HAL_TEENSY35_36>
-monitor_speed = 250000
 
 #
 # Espressif ESP32
 [env:esp32]
 platform      = espressif32
 board         = esp32dev
-framework     = arduino
 upload_speed  = 115200
 monitor_speed = 115200
 upload_port   = /dev/ttyUSB0
 src_filter    = ${common.default_src_filter} +<src/HAL/HAL_ESP32>
 
 #
-# FYSETC F6 V1.3
-#
-[env:fysetc_f6_13]
-platform          = atmelavr
-framework         = arduino
-board             = fysetc_f6_13
-build_flags       = ${common.build_flags}
-board_build.f_cpu = 16000000L
-lib_deps          = ${common.lib_deps}
-  TMC26XStepper=https://github.com/trinamic/TMC26XStepper/archive/master.zip
-src_filter        = ${common.default_src_filter} +<src/HAL/HAL_AVR>
-monitor_speed     = 250000
-
-#
 # Native
 # No supported Arduino libraries, base Marlin only
 #
 [env:linux_native]
 platform        = native
+framework       =
 build_flags     = -D__PLAT_LINUX__ -std=gnu++17 -ggdb -g -lrt -lpthread -D__MARLIN_FIRMWARE__ -Wno-expansion-to-defined
 src_build_flags = -Wall -IMarlin/src/HAL/HAL_LINUX/include
 build_unflags   = -Wall
 [env:SAMD51_grandcentral_m4]
 platform      = atmelsam
 board         = adafruit_grandcentral_m4
-framework     = arduino
 build_flags   = ${common.build_flags} -std=gnu++17
 extra_scripts = ${common.extra_scripts}
 build_unflags = -std=gnu++11
-lib_deps      = ${common.lib_deps}
 src_filter    = ${common.default_src_filter} +<src/HAL/HAL_SAMD51>
 debug_tool    = jlink
 
 #
 [env:include_tree]
 platform    = atmelavr
-framework   = arduino
 board       = megaatmega2560
 build_flags = -c -H -std=gnu++11 -Wall -Os -D__MARLIN_FIRMWARE__
 lib_deps    = ${common.lib_deps}