Rename, clean up boards/variants (#21655)

* Consolidate variant scripts
* Rename Marlin-local boards
* Simplify variants where possible
* Rename variants
* CHITU_F103 and MEEB_3DP: Maple platform `platformio-build-stm32f1.py` uses the 'board' name, not 'board_build.variant' so folder names match 'board' and not `board_build.variant`.

.github/workflows/test-builds.yml

@@ -90,6 +90,7 @@ jobs:
         - NUCLEO_F767ZI
         - REMRAM_V1
         - BTT_SKR_SE_BX
+        - chitu_f103
 
         # Put lengthy tests last
 

buildroot/share/PlatformIO/boards/LERDGE.json

@@ -1,65 +0,0 @@
-{
-  "build": {
-    "core": "stm32",
-    "cpu": "cortex-m4",
-    "extra_flags": "-DSTM32F407xx",
-    "f_cpu": "168000000L",
-    "hwids": [
-      [
-        "0x1EAF",
-        "0x0003"
-      ],
-      [
-        "0x0483",
-        "0x3748"
-      ]
-    ],
-    "mcu": "stm32f407zgt6",
-    "variant": "LERDGE",
-    "ldscript": "LERDGE.ld"
-  },
-  "debug": {
-    "jlink_device": "STM32F407ZG",
-    "openocd_target": "stm32f4x",
-    "svd_path": "STM32F40x.svd",
-    "tools": {
-      "stlink": {
-        "server": {
-          "arguments": [
-            "-f",
-            "scripts/interface/stlink.cfg",
-            "-c",
-            "transport select hla_swd",
-            "-f",
-            "scripts/target/stm32f4x.cfg",
-            "-c",
-            "reset_config none"
-          ],
-          "executable": "bin/openocd",
-          "package": "tool-openocd"
-        }
-      }
-    }
-  },
-  "frameworks": [
-    "arduino",
-    "stm32cube"
-  ],
-  "name": "STM32F407ZGT6(192k RAM. 1024k Flash)",
-  "upload": {
-    "disable_flushing": false,
-    "maximum_ram_size": 196608,
-    "maximum_size": 1048576,
-    "protocol": "stlink",
-    "protocols": [
-      "stlink",
-      "dfu",
-      "jlink"
-    ],
-    "require_upload_port": true,
-    "use_1200bps_touch": false,
-    "wait_for_upload_port": false
-  },
-  "url": "https://www.st.com/en/microcontrollers-microprocessors/stm32f407ZG.html",
-  "vendor": "Generic"
-}

buildroot/share/PlatformIO/boards/fysetc_f6.json

@@ -1,34 +0,0 @@
-{
-  "build": {
-    "core": "arduino",
-    "extra_flags": "-DARDUINO_AVR_MEGA2560",
-    "f_cpu": "16000000L",
-    "hwids": [
-      [
-        "0x27b2",
-        "0x0002"
-      ]
-    ],
-    "mcu": "atmega2560",
-    "variant": "fysetcf6"
-  },
-  "debug": {
-    "simavr_target": "atmega2560",
-    "avr-stub": {
-      "speed": 115200
-    }
-  },
-  "frameworks": [
-    "arduino"
-  ],
-  "name": "FYSETC F6",
-  "upload": {
-    "maximum_ram_size": 8192,
-    "maximum_size": 258048,
-    "protocol": "wiring",
-    "require_upload_port": true,
-    "speed": 115200
-  },
-  "url": "https://www.fysetc.com/",
-  "vendor": "FYSETC"
-}

buildroot/share/PlatformIO/boards/marlin_BTT_SKR_SE_BX.json

@@ -5,7 +5,7 @@
     "extra_flags": "-DSTM32H743xx",
     "f_cpu": "400000000L",
     "mcu": "stm32h743iit6",
-    "variant": "BTT_SKR_SE_BX"
+    "variant": "MARLIN_BTT_SKR_SE_BX"
   },
   "debug": {
     "jlink_device": "STM32H743II",

buildroot/share/PlatformIO/boards/marlin_BigTree_BTT002.json

@@ -15,7 +15,7 @@
       ]
     ],
     "mcu": "stm32f407vgt6",
-    "variant": "BIGTREE_BTT002"
+    "variant": "MARLIN_BIGTREE_BTT002"
   },
   "debug": {
     "jlink_device": "STM32F407VG",

buildroot/share/PlatformIO/boards/marlin_BigTree_GTR_v1.json

@@ -15,7 +15,7 @@
       ]
     ],
     "mcu": "stm32f407zgt6",
-    "variant": "BIGTREE_GTR_V1"
+    "variant": "MARLIN_BIGTREE_GTR_V1"
   },
   "debug": {
     "jlink_device": "STM32F407ZG",

buildroot/share/PlatformIO/boards/marlin_BigTree_SKR_Pro.json

@@ -15,7 +15,7 @@
       ]
     ],
     "mcu": "stm32f407zgt6",
-    "variant": "BIGTREE_SKR_PRO_1v1"
+    "variant": "MARLIN_BIGTREE_SKR_PRO_11"
   },
   "debug": {
     "jlink_device": "STM32F407ZG",

buildroot/share/PlatformIO/boards/marlin_CHITU_F103.json

@@ -15,8 +15,7 @@
       ]
     ],
     "mcu": "stm32f103zet6",
-    "variant": "CHITU_F103",
-    "ldscript": "chitu_f103.ld"
+    "variant": "marlin_CHITU_F103"
   },
   "debug": {
     "jlink_device": "STM32F103ZE",

buildroot/share/PlatformIO/boards/marlin_FYSETC_CHEETAH_V20.json

@@ -16,7 +16,7 @@
     ],
     "ldscript": "stm32f401rc.ld",
     "mcu": "stm32f401rct6",
-    "variant": "FYSETC_CHEETAH_V20"
+    "variant": "MARLIN_FYSETC_CHEETAH_V20"
   },
   "debug": {
     "jlink_device": "STM32F401RC",

buildroot/share/PlatformIO/boards/marlin_MEEB_3DP.json

@@ -18,7 +18,7 @@
       "ldscript": "stm32f103xc.ld"
     },
     "mcu": "stm32f103rct6",
-    "variant": "MEEB_3DP"
+    "variant": "marlin_MEEB_3DP"
   },
   "debug": {
     "jlink_device": "STM32F103RC",

buildroot/share/PlatformIO/boards/marlin_STEVAL_STM32F401VE.json

@@ -14,9 +14,8 @@
         "0x3748"
       ]
     ],
-    "ldscript": "stm32f401xe.ld",
     "mcu": "stm32f401vet6",
-    "variant": "STEVAL_F401VE"
+    "variant": "MARLIN_STEVAL_F401VE"
   },
   "debug": {
     "jlink_device": "STM32F401VE",

buildroot/share/PlatformIO/boards/marlin_STM32F407ZGT6.json

@@ -14,8 +14,7 @@
         "0x3748"
       ]
     ],
-    "mcu": "stm32f407zgt6",
-    "variant": "FLY_F407ZG"
+    "mcu": "stm32f407zgt6"
   },
   "debug": {
     "jlink_device": "STM32F407ZG",
@@ -49,7 +48,7 @@
     "disable_flushing": false,
     "maximum_ram_size": 196608,
     "maximum_size": 1048576,
-    "protocol": "dfu",
+    "protocol": "stlink",
     "protocols": [
       "stlink",
       "dfu",

buildroot/share/PlatformIO/boards/marlin_archim.json

@@ -21,7 +21,7 @@
     "ldscript": "linker_scripts/gcc/flash.ld",
     "mcu": "at91sam3x8e",
     "usb_product": "Archim",
-    "variant": "archim"
+    "variant": "MARLIN_ARCHIM"
   },
   "connectivity": [
     "can"

buildroot/share/PlatformIO/scripts/STM32F103RC_MEEB_3DP.py

@@ -1,5 +1,5 @@
 #
-# STM32F103RC_MEEB_3DP.py
+# buildroot/share/PlatformIO/scripts/STM32F103RC_MEEB_3DP.py
 #
 try:
     import configparser
@@ -54,9 +54,5 @@ for define in env['CPPDEFINES']:
 print('Use the {0:s} address as the marlin app entry point.'.format(vect_tab_addr))
 print('Use the {0:d}KB flash version of stm32f103rct6 chip.'.format(flash_size))
 
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/STM32F103RC_MEEB_3DP.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
+import marlin
+marlin.custom_ld_script("STM32F103RC_MEEB_3DP.ld")

buildroot/share/PlatformIO/scripts/STM32F103RC_SKR_MINI.py

@@ -1,23 +0,0 @@
-#
-# STM32F103RC_SKR_MINI.py
-#
-import os
-Import("env")
-
-STM32_FLASH_SIZE = 256
-
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-    if define[0] == "STM32_FLASH_SIZE":
-        STM32_FLASH_SIZE = define[1]
-
-# Relocate firmware from 0x08000000 to 0x08007000
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/STM32F103RC_SKR_MINI_" + str(STM32_FLASH_SIZE) + "K.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script

buildroot/share/PlatformIO/scripts/STM32F103RC_fysetc.py

@@ -1,24 +1,11 @@
 #
-# STM32F103RC_fysetc.py
+# buildroot/share/PlatformIO/scripts/STM32F103RC_fysetc.py
 #
 import os
 from os.path import join
 from os.path import expandvars
 Import("env")
 
-# Relocate firmware from 0x08000000 to 0x08008000
-#for define in env['CPPDEFINES']:
-#    if define[0] == "VECT_TAB_ADDR":
-#        env['CPPDEFINES'].remove(define)
-#env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08008000"))
-
-#custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/fysetc_stm32f103rc.ld")
-#for i, flag in enumerate(env["LINKFLAGS"]):
-#    if "-Wl,-T" in flag:
-#        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-#    elif flag == "-T":
-#        env["LINKFLAGS"][i + 1] = custom_ld_script
-
 # Custom HEX from ELF
 env.AddPostAction(
 	join("$BUILD_DIR","${PROGNAME}.elf"),

buildroot/share/PlatformIO/scripts/STM32F103RET6_creality.py

@@ -1,20 +0,0 @@
-#
-# STM32F103RET6_creality.py
-#
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08007000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/creality.ld")
-
-for i, flag in enumerate(env['LINKFLAGS']):
-    if "-Wl,-T" in flag:
-        env['LINKFLAGS'][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env['LINKFLAGS'][i + 1] = custom_ld_script

buildroot/share/PlatformIO/scripts/STM32F103RE_SKR_E3_DIP.py

@@ -1,19 +0,0 @@
-#
-# STM32F103RE_SKR_E3_DIP.py
-#
-import os
-Import("env")
-
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-
-# Relocate firmware from 0x08000000 to 0x08007000
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/STM32F103RE_SKR_E3_DIP.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script

buildroot/share/PlatformIO/scripts/STM32F103VE_longer.py

@@ -1,36 +1,22 @@
 #
-# STM32F103VE_longer.py
+# buildroot/share/PlatformIO/scripts/STM32F103VE_longer.py
 # Customizations for env:STM32F103VE_longer
 #
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08010000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08010000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/STM32F103VE_longer.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
+import os,marlin
 
 # Rename ${PROGNAME}.bin and save it as 'project.bin' (No encryption on the Longer3D)
 def encrypt(source, target, env):
     firmware = open(target[0].path, "rb")
-    marlin_alfa = open(target[0].dir.path +'/project.bin', "wb")
+    renamed = open(target[0].dir.path + '/project.bin', "wb")
     length = os.path.getsize(target[0].path)
     position = 0
     try:
         while position < length:
             byte = firmware.read(1)
-            marlin_alfa.write(byte)
+            renamed.write(byte)
             position += 1
     finally:
         firmware.close()
-        marlin_alfa.close()
+        renamed.close()
 
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+marlin.add_post_action(encrypt);

buildroot/share/PlatformIO/scripts/STM32F1_create_variant.py

@@ -1,19 +1,10 @@
 #
 # STM32F1_create_variant.py
 #
-import os,shutil
+import os,shutil,marlin
 from SCons.Script import DefaultEnvironment
 from platformio import util
 
-def copytree(src, dst, symlinks=False, ignore=None):
-    for item in os.listdir(src):
-        s = os.path.join(src, item)
-        d = os.path.join(dst, item)
-        if os.path.isdir(s):
-            shutil.copytree(s, d, symlinks, ignore)
-        else:
-            shutil.copy2(s, d)
-
 env = DefaultEnvironment()
 platform = env.PioPlatform()
 board = env.BoardConfig()
@@ -36,4 +27,4 @@ if os.path.isdir(variant_dir):
 if not os.path.isdir(variant_dir):
     os.mkdir(variant_dir)
 
-copytree(source_dir, variant_dir)
+marlin.copytree(source_dir, variant_dir)

buildroot/share/PlatformIO/scripts/STM32F401VE_STEVAL.py

@@ -1,13 +0,0 @@
-#
-# STM32F401VE_STEVAL.py
-# Customizations for env:STM32F401VE_STEVAL
-#
-import os
-Import("env")
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/variants/STEVAL_F401VE/ldscript.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script

buildroot/share/PlatformIO/scripts/chitu_crypt.py

@@ -1,21 +1,11 @@
 #
-# chitu_crypt.py
+# buildroot/share/PlatformIO/scripts/chitu_crypt.py
 # Customizations for Chitu boards
 #
-Import("env")
-import os,random,struct,uuid
+import os,random,struct,uuid,marlin
 
 # Relocate firmware from 0x08000000 to 0x08008800
-env['CPPDEFINES'].remove(("VECT_TAB_ADDR", "0x8000000"))
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08008800"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/chitu_f103.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
+marlin.relocate_firmware("0x08008800")
 
 def calculate_crc(contents, seed):
     accumulating_xor_value = seed;
@@ -69,7 +59,6 @@ def xor_block(r0, r1, block_number, block_size, file_key):
         #increment the loop_counter
         loop_counter = loop_counter + 1
 
-
 def encrypt_file(input, output_file, file_length):
     input_file = bytearray(input.read())
     block_size = 0x800
@@ -113,7 +102,6 @@ def encrypt_file(input, output_file, file_length):
     output_file.write(input_file)
     return
 
-
 # Encrypt ${PROGNAME}.bin and save it as 'update.cbd'
 def encrypt(source, target, env):
     firmware = open(target[0].path, "rb")
@@ -125,4 +113,4 @@ def encrypt(source, target, env):
     firmware.close()
     update.close()
 
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+marlin.add_post_action(encrypt);

buildroot/share/PlatformIO/scripts/copy_marlin_variant_to_framework.py

@@ -1,49 +0,0 @@
-#
-# copy_marlin_variant_to_framework.py
-#
-import os,shutil
-from SCons.Script import DefaultEnvironment
-from platformio import util
-from platformio.package.meta import PackageSpec
-
-def copytree(src, dst, symlinks=False, ignore=None):
-    for item in os.listdir(src):
-        s = os.path.join(src, item)
-        d = os.path.join(dst, item)
-        if os.path.isdir(s):
-            shutil.copytree(s, d, symlinks, ignore)
-        else:
-            shutil.copy2(s, d)
-
-env = DefaultEnvironment()
-platform = env.PioPlatform()
-board = env.BoardConfig()
-variant = board.get("build.variant")
-
-platform_packages = env.GetProjectOption('platform_packages')
-# if there's no framework defined, take it from the class name of platform
-framewords = {
-    "Ststm32Platform": "framework-arduinoststm32",
-    "AtmelavrPlatform": "framework-arduino-avr"
-}
-if len(platform_packages) == 0:
-    platform_name = framewords[platform.__class__.__name__]
-else:
-    platform_name = PackageSpec(platform_packages[0]).name
-
-FRAMEWORK_DIR = platform.get_package_dir(platform_name)
-assert os.path.isdir(FRAMEWORK_DIR)
-assert os.path.isdir("buildroot/share/PlatformIO/variants")
-
-variant_dir = os.path.join(FRAMEWORK_DIR, "variants", variant)
-
-source_dir = os.path.join("buildroot/share/PlatformIO/variants", variant)
-assert os.path.isdir(source_dir)
-
-if os.path.isdir(variant_dir):
-    shutil.rmtree(variant_dir)
-
-if not os.path.isdir(variant_dir):
-    os.mkdir(variant_dir)
-
-copytree(source_dir, variant_dir)

buildroot/share/PlatformIO/scripts/custom_board.py

@@ -0,0 +1,13 @@
+#
+# buildroot/share/PlatformIO/scripts/custom_board.py
+#
+import marlin
+board = marlin.env.BoardConfig()
+
+address = board.get("build.address", "")
+if address:
+	marlin.relocate_firmware(address)
+
+ldscript = board.get("build.ldscript", "")
+if ldscript:
+	marlin.custom_ld_script(ldscript)

buildroot/share/PlatformIO/scripts/download_mks_assets.py

@@ -1,5 +1,6 @@
 #
-# download_mks_assets.py
+# buildroot/share/PlatformIO/scripts/download_mks_assets.py
+# Added by HAS_TFT_LVGL_UI to download assets from Makerbase repo
 #
 Import("env")
 import os,requests,zipfile,tempfile,shutil

buildroot/share/PlatformIO/scripts/fly_mini.py

@@ -1,20 +0,0 @@
-#
-# fly_mini.py
-# Customizations for env:FLY_MINI
-#
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08005000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08005000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/fly_mini.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-

buildroot/share/PlatformIO/scripts/fysetc_cheetah_v20.py

@@ -1,13 +0,0 @@
-#
-# STM32F401VE_STEVAL.py
-# Customizations for env:STM32F401VE_STEVAL
-#
-import os
-Import("env")
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/variants/FYSETC_CHEETAH_V20/ldscript.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script

buildroot/share/PlatformIO/scripts/generic_create_variant.py

@@ -1,30 +1,54 @@
 #
-# Generate a generic variant
+# generic_create_variant.py
 #
-import os,shutil
+# Copy one of the variants from buildroot/platformio/variants into
+# the appropriate framework variants folder, so that its contents
+# will be picked up by PlatformIO just like any other variant.
+#
+import os,shutil,marlin
 from SCons.Script import DefaultEnvironment
 from platformio import util
 
 env = DefaultEnvironment()
+
+#
+# Get the platform name from the 'platform_packages' option,
+# or look it up by the platform.class.name.
+#
 platform = env.PioPlatform()
+
+from platformio.package.meta import PackageSpec
+platform_packages = env.GetProjectOption('platform_packages')
+if len(platform_packages) == 0:
+    framewords = {
+        "Ststm32Platform": "framework-arduinoststm32",
+        "AtmelavrPlatform": "framework-arduino-avr"
+    }
+    platform_name = framewords[platform.__class__.__name__]
+else:
+    platform_name = PackageSpec(platform_packages[0]).name
+
+if platform_name in [ "usb-host-msc", "usb-host-msc-cdc-msc", "tool-stm32duino" ]:
+    platform_name = "framework-arduinoststm32"
+
+FRAMEWORK_DIR = platform.get_package_dir(platform_name)
+assert os.path.isdir(FRAMEWORK_DIR)
+
 board = env.BoardConfig()
 
-FRAMEWORK_DIR = platform.get_package_dir("framework-arduinoststm32")
-assert os.path.isdir(FRAMEWORK_DIR)
-assert os.path.isdir("buildroot/share/PlatformIO/variants")
-
-mcu_type = board.get("build.mcu")[:-2]
+#mcu_type = board.get("build.mcu")[:-2]
 variant = board.get("build.variant")
-series = mcu_type[:7].upper() + "xx"
+#series = mcu_type[:7].upper() + "xx"
+
+# Prepare a new empty folder at the destination
 variant_dir = os.path.join(FRAMEWORK_DIR, "variants", variant)
-
-source_dir = os.path.join("buildroot/share/PlatformIO/variants", variant)
-assert os.path.isdir(source_dir)
-
+if os.path.isdir(variant_dir):
+    shutil.rmtree(variant_dir)
 if not os.path.isdir(variant_dir):
     os.mkdir(variant_dir)
 
-for file_name in os.listdir(source_dir):
-    full_file_name = os.path.join(source_dir, file_name)
-    if os.path.isfile(full_file_name):
-        shutil.copy(full_file_name, variant_dir)
+# Source dir is a local variant sub-folder
+source_dir = os.path.join("buildroot/share/PlatformIO/variants", variant)
+assert os.path.isdir(source_dir)
+
+marlin.copytree(source_dir, variant_dir)

buildroot/share/PlatformIO/scripts/jgaurora_a5s_a1_with_bootloader.py

@@ -1,30 +1,21 @@
-import os
-Import("env")
+#
+# buildroot/share/PlatformIO/scripts/jgaurora_a5s_a1_with_bootloader.py
+# Customizations for env:jgaurora_a5s_a1
+#
+import os,marlin
 
-# Relocate firmware from 0x08000000 to 0x0800A000
-env['CPPDEFINES'].remove(("VECT_TAB_ADDR", "0x8000000"))
-#alternatively, for STSTM <=5.1.0 use line below
-#env['CPPDEFINES'].remove(("VECT_TAB_ADDR", 134217728))
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x0800A000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/jgaurora_a5s_a1.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-#append ${PROGNAME}.bin firmware after bootloader and save it as 'jgaurora_firmware.bin'
+# Append ${PROGNAME}.bin firmware after bootloader and save it as 'jgaurora_firmware.bin'
 def addboot(source, target, env):
 	firmware = open(target[0].path, "rb")
 	lengthfirmware = os.path.getsize(target[0].path)
-	bootloader_dir = "buildroot/share/PlatformIO/scripts/jgaurora_bootloader.bin"
-	bootloader = open(bootloader_dir, "rb")
-	lengthbootloader = os.path.getsize(bootloader_dir)
-	firmware_with_boothloader_dir = target[0].dir.path +'/firmware_with_bootloader.bin'
-	if os.path.exists(firmware_with_boothloader_dir):
-		os.remove(firmware_with_boothloader_dir)
-	firmwareimage = open(firmware_with_boothloader_dir, "wb")
+	bootloader_bin = "buildroot/share/PlatformIO/scripts/" + "jgaurora_bootloader.bin"
+	bootloader = open(bootloader_bin, "rb")
+	lengthbootloader = os.path.getsize(bootloader_bin)
+
+	firmware_with_boothloader_bin = target[0].dir.path + '/firmware_with_bootloader.bin'
+	if os.path.exists(firmware_with_boothloader_bin):
+		os.remove(firmware_with_boothloader_bin)
+	firmwareimage = open(firmware_with_boothloader_bin, "wb")
 	position = 0
 	while position < lengthbootloader:
 		byte = bootloader.read(1)
@@ -38,11 +29,11 @@ def addboot(source,target,env):
 	bootloader.close()
 	firmware.close()
 	firmwareimage.close()
-	firmware_without_bootloader_dir = target[0].dir.path+'/firmware_for_sd_upload.bin'
-	if os.path.exists(firmware_without_bootloader_dir):
-		os.remove(firmware_without_bootloader_dir)
-	os.rename(target[0].path, firmware_without_bootloader_dir)
+
+	firmware_without_bootloader_bin = target[0].dir.path + '/firmware_for_sd_upload.bin'
+	if os.path.exists(firmware_without_bootloader_bin):
+		os.remove(firmware_without_bootloader_bin)
+	os.rename(target[0].path, firmware_without_bootloader_bin)
 	#os.rename(target[0].dir.path+'/firmware_with_bootloader.bin', target[0].dir.path+'/firmware.bin')
 
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", addboot);
-
+marlin.add_post_action(addboot);

buildroot/share/PlatformIO/scripts/lerdge.py

@@ -1,20 +1,16 @@
 #
-# lerdge.py
-# Customizations for Lerdge build environments
+# buildroot/share/PlatformIO/scripts/lerdge.py
+# Customizations for Lerdge build environments:
+#   env:LERDGEX  env:LERDGEX_usb_flash_drive
+#   env:LERDGES  env:LERDGES_usb_flash_drive
+#   env:LERDGEK  env:LERDGEK_usb_flash_drive
 #
-import os,sys
+import os,marlin
 Import("env")
 
 from SCons.Script import DefaultEnvironment
 board = DefaultEnvironment().BoardConfig()
 
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/lerdge.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
 def encryptByte(byte):
     byte = 0xFF & ((byte << 6) | (byte >> 2))
     i = 0x58 + byte
@@ -35,16 +31,16 @@ def encrypt_file(input, output_file, file_length):
 def encrypt(source, target, env):
     print("Encrypting to:", board.get("build.firmware"))
     firmware = open(target[0].path, "rb")
-    result = open(target[0].dir.path + "/" + board.get("build.firmware"), "wb")
+    renamed = open(target[0].dir.path + "/" + board.get("build.firmware"), "wb")
     length = os.path.getsize(target[0].path)
 
-    encrypt_file(firmware, result, length)
+    encrypt_file(firmware, renamed, length)
 
     firmware.close()
-    result.close()
+    renamed.close()
 
 if 'firmware' in board.get("build").keys():
-  env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+  marlin.add_post_action(encrypt);
 else:
   print("You need to define output file via board_build.firmware = 'filename' parameter")
   exit(1);

buildroot/share/PlatformIO/scripts/marlin.py

@@ -0,0 +1,75 @@
+#
+# buildroot/share/PlatformIO/scripts/marlin.py
+# Helper module with some commonly-used functions
+#
+import os,shutil
+
+from SCons.Script import DefaultEnvironment
+env = DefaultEnvironment()
+
+def copytree(src, dst, symlinks=False, ignore=None):
+   for item in os.listdir(src):
+        s = os.path.join(src, item)
+        d = os.path.join(dst, item)
+        if os.path.isdir(s):
+            shutil.copytree(s, d, symlinks, ignore)
+        else:
+            shutil.copy2(s, d)
+
+def replace_define(field, value):
+	for define in env['CPPDEFINES']:
+		if define[0] == field:
+			env['CPPDEFINES'].remove(define)
+	env['CPPDEFINES'].append((field, value))
+
+# Relocate the firmware to a new address, such as "0x08005000"
+def relocate_firmware(address):
+	replace_define("VECT_TAB_ADDR", address)
+
+# Relocate the vector table with a new offset
+def relocate_vtab(address):
+	replace_define("VECT_TAB_OFFSET", address)
+
+# Replace the existing -Wl,-T with the given ldscript path
+def custom_ld_script(ldname):
+	apath = os.path.abspath("buildroot/share/PlatformIO/ldscripts/" + ldname)
+	for i, flag in enumerate(env["LINKFLAGS"]):
+		if "-Wl,-T" in flag:
+			env["LINKFLAGS"][i] = "-Wl,-T" + apath
+		elif flag == "-T":
+			env["LINKFLAGS"][i + 1] = apath
+
+# Encrypt ${PROGNAME}.bin and save it with a new name
+# Called by specific encrypt() functions, mostly for MKS boards
+def encrypt_mks(source, target, env, new_name):
+	import sys
+
+	key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
+
+	firmware = open(target[0].path, "rb")
+	renamed = open(target[0].dir.path + "/" + new_name, "wb")
+	length = os.path.getsize(target[0].path)
+	position = 0
+	try:
+		while position < length:
+			byte = firmware.read(1)
+			if position >= 320 and position < 31040:
+				byte = chr(ord(byte) ^ key[position & 31])
+				if sys.version_info[0] > 2:
+					byte = bytes(byte, 'latin1')
+			renamed.write(byte)
+			position += 1
+	finally:
+		firmware.close()
+		renamed.close()
+
+def add_post_action(action):
+	env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", action);
+
+# Apply customizations for a MKS Robin
+def prepare_robin(address, ldname, fwname):
+	def encrypt(source, target, env):
+		encrypt_mks(source, target, env, fwname)
+	relocate_firmware(address)
+	custom_ld_script(ldname)
+	add_post_action(encrypt);

buildroot/share/PlatformIO/scripts/mks_encrypt.py

@@ -1,32 +1,28 @@
-import os,sys
+#
+# buildroot/share/PlatformIO/scripts/mks_encrypt.py
+#
+# Apply encryption and save as 'build.firmware' for these environments:
+#  - env:mks_robin_stm32
+#  - env:flsun_hispeedv1
+#  - env:mks_robin_nano35_stm32
+#
 Import("env")
 
 from SCons.Script import DefaultEnvironment
 board = DefaultEnvironment().BoardConfig()
 
-# Encrypt ${PROGNAME}.bin and save it as build.firmware ('Robin.bin')
-def encrypt(source, target, env):
-  key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-  firmware = open(target[0].path, "rb")
-  robin = open(target[0].dir.path +'/'+ board.get("build.firmware"), "wb")
-  length = os.path.getsize(target[0].path)
-  position = 0
-  try:
-    while position < length:
-      byte = firmware.read(1)
-      if position >= 320 and position < 31040:
-        byte = chr(ord(byte) ^ key[position & 31])
-        if sys.version_info[0] > 2:
-          byte = bytes(byte, 'latin1')
-      robin.write(byte)
-      position += 1
-  finally:
-    firmware.close()
-    robin.close()
-
 if 'firmware' in board.get("build").keys():
-  env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+
+	import marlin
+
+	# Encrypt ${PROGNAME}.bin and save it as build.firmware
+	def encrypt(source, target, env):
+		marlin.encrypt_mks(source, target, env, "build.firmware")
+
+	marlin.add_post_action(encrypt);
+
 else:
+
+	import sys
 	print("You need to define output file via board_build.firmware = 'filename' parameter", file=sys.stderr)
-  exit(1);
+	env.Exit(1);

buildroot/share/PlatformIO/scripts/mks_robin.py

@@ -1,39 +1,5 @@
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08007000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/mks_robin.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-# Encrypt ${PROGNAME}.bin and save it as 'Robin.bin'
-def encrypt(source, target, env):
-    import sys
-
-    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-    firmware = open(target[0].path, "rb")
-    robin = open(target[0].dir.path +'/Robin.bin', "wb")
-    length = os.path.getsize(target[0].path)
-    position = 0
-    try:
-        while position < length:
-            byte = firmware.read(1)
-            if position >= 320 and position < 31040:
-                byte = chr(ord(byte) ^ key[position & 31])
-                if sys.version_info[0] > 2:
-                    byte = bytes(byte, 'latin1')
-            robin.write(byte)
-            position += 1
-    finally:
-        firmware.close()
-        robin.close()
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+#
+# buildroot/share/PlatformIO/scripts/mks_robin.py
+#
+import marlin
+marlin.prepare_robin("0x08007000", "mks_robin.ld", "Robin.bin")

buildroot/share/PlatformIO/scripts/mks_robin_e3.py

@@ -1,40 +1,5 @@
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08005000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08005000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/mks_robin_e3.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-
-# Encrypt ${PROGNAME}.bin and save it as 'mksLite.bin'
-def encrypt(source, target, env):
-    import sys
-
-    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-    firmware = open(target[0].path, "rb")
-    robin = open(target[0].dir.path +'/Robin_e3.bin', "wb")
-    length = os.path.getsize(target[0].path)
-    position = 0
-    try:
-        while position < length:
-            byte = firmware.read(1)
-            if position >= 320 and position < 31040:
-                byte = chr(ord(byte) ^ key[position & 31])
-                if sys.version_info[0] > 2:
-                    byte = bytes(byte, 'latin1')
-            robin.write(byte)
-            position += 1
-    finally:
-        firmware.close()
-        robin.close()
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+#
+# buildroot/share/PlatformIO/scripts/mks_robin_e3.py
+#
+import marlin
+marlin.prepare_robin("0x08005000", "mks_robin_e3.ld", "Robin_e3.bin")

buildroot/share/PlatformIO/scripts/mks_robin_e3p.py

@@ -1,40 +1,5 @@
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08007000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/mks_robin_e3p.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-
-# Encrypt ${PROGNAME}.bin and save it as 'mks_robin_e3p.bin'
-def encrypt(source, target, env):
-    import sys
-
-    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-    firmware = open(target[0].path, "rb")
-    robin = open(target[0].dir.path +'/Robin_e3p.bin', "wb")
-    length = os.path.getsize(target[0].path)
-    position = 0
-    try:
-        while position < length:
-            byte = firmware.read(1)
-            if position >= 320 and position < 31040:
-                byte = chr(ord(byte) ^ key[position & 31])
-                if sys.version_info[0] > 2:
-                    byte = bytes(byte, 'latin1')
-            robin.write(byte)
-            position += 1
-    finally:
-        firmware.close()
-        robin.close()
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+#
+# buildroot/share/PlatformIO/scripts/mks_robin_e3p.py
+#
+import marlin
+marlin.prepare_robin("0x08007000", "mks_robin_e3p.ld", "Robin_e3p.bin")

buildroot/share/PlatformIO/scripts/mks_robin_lite.py

@@ -1,40 +1,5 @@
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08005000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08005000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/mks_robin_lite.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-
-# Encrypt ${PROGNAME}.bin and save it as 'mksLite.bin'
-def encrypt(source, target, env):
-    import sys
-
-    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-    firmware = open(target[0].path, "rb")
-    robin = open(target[0].dir.path +'/mksLite.bin', "wb")
-    length = os.path.getsize(target[0].path)
-    position = 0
-    try:
-        while position < length:
-            byte = firmware.read(1)
-            if position >= 320 and position < 31040:
-                byte = chr(ord(byte) ^ key[position & 31])
-                if sys.version_info[0] > 2:
-                    byte = bytes(byte, 'latin1')
-            robin.write(byte)
-            position += 1
-    finally:
-        firmware.close()
-        robin.close()
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+#
+# buildroot/share/PlatformIO/scripts/mks_robin_lite.py
+#
+import marlin
+marlin.prepare_robin("0x08005000", "mks_robin_lite.ld", "mksLite.bin")

buildroot/share/PlatformIO/scripts/mks_robin_lite3.py

@@ -1,40 +1,5 @@
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08005000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08005000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/mks_robin_lite.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-
-# Encrypt ${PROGNAME}.bin and save it as 'mksLite.bin'
-def encrypt(source, target, env):
-    import sys
-
-    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-    firmware = open(target[0].path, "rb")
-    robin = open(target[0].dir.path +'/mksLite3.bin', "wb")
-    length = os.path.getsize(target[0].path)
-    position = 0
-    try:
-        while position < length:
-            byte = firmware.read(1)
-            if position >= 320 and position < 31040:
-                byte = chr(ord(byte) ^ key[position & 31])
-                if sys.version_info[0] > 2:
-                    byte = bytes(byte, 'latin1')
-            robin.write(byte)
-            position += 1
-    finally:
-        firmware.close()
-        robin.close()
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+#
+# buildroot/share/PlatformIO/scripts/mks_robin_lite3.py
+#
+import marlin
+marlin.prepare_robin("0x08005000", "mks_robin_lite.ld", "mksLite3.bin")

buildroot/share/PlatformIO/scripts/mks_robin_mini.py

@@ -1,40 +1,5 @@
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08007000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/mks_robin_mini.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-
-# Encrypt ${PROGNAME}.bin and save it as 'Robin_mini.bin'
-def encrypt(source, target, env):
-    import sys
-
-    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-    firmware = open(target[0].path, "rb")
-    robin = open(target[0].dir.path +'/Robin_mini.bin', "wb")
-    length = os.path.getsize(target[0].path)
-    position = 0
-    try:
-        while position < length:
-            byte = firmware.read(1)
-            if position >= 320 and position < 31040:
-                byte = chr(ord(byte) ^ key[position & 31])
-                if sys.version_info[0] > 2:
-                    byte = bytes(byte, 'latin1')
-            robin.write(byte)
-            position += 1
-    finally:
-        firmware.close()
-        robin.close()
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+#
+# buildroot/share/PlatformIO/scripts/mks_robin_mini.py
+#
+import marlin
+marlin.prepare_robin("0x08005000", "mks_robin_mini.ld", "Robin_mini.bin")

buildroot/share/PlatformIO/scripts/mks_robin_nano.py

@@ -1,40 +1,5 @@
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08007000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/mks_robin_nano.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-
-# Encrypt ${PROGNAME}.bin and save it as 'Robin_nano.bin'
-def encrypt(source, target, env):
-    import sys
-
-    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-    firmware = open(target[0].path, "rb")
-    robin = open(target[0].dir.path +'/Robin_nano.bin', "wb")
-    length = os.path.getsize(target[0].path)
-    position = 0
-    try:
-        while position < length:
-            byte = firmware.read(1)
-            if position >= 320 and position < 31040:
-                byte = chr(ord(byte) ^ key[position & 31])
-                if sys.version_info[0] > 2:
-                    byte = bytes(byte, 'latin1')
-            robin.write(byte)
-            position += 1
-    finally:
-        firmware.close()
-        robin.close()
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+#
+# buildroot/share/PlatformIO/scripts/mks_robin_nano.py
+#
+import marlin
+marlin.prepare_robin("0x08007000", "mks_robin_nano.ld", "Robin_nano.bin")

buildroot/share/PlatformIO/scripts/mks_robin_nano35.py

@@ -1,40 +1,5 @@
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08007000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/mks_robin_nano.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-
-# Encrypt ${PROGNAME}.bin and save it as 'Robin_nano35.bin'
-def encrypt(source, target, env):
-    import sys
-
-    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-    firmware = open(target[0].path, "rb")
-    robin = open(target[0].dir.path +'/Robin_nano35.bin', "wb")
-    length = os.path.getsize(target[0].path)
-    position = 0
-    try:
-        while position < length:
-            byte = firmware.read(1)
-            if position >= 320 and position < 31040:
-                byte = chr(ord(byte) ^ key[position & 31])
-                if sys.version_info[0] > 2:
-                    byte = bytes(byte, 'latin1')
-            robin.write(byte)
-            position += 1
-    finally:
-        firmware.close()
-        robin.close()
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+#
+# buildroot/share/PlatformIO/scripts/mks_robin_nano35.py
+#
+import marlin
+marlin.prepare_robin("0x08007000", "mks_robin_nano.ld", "Robin_nano35.bin")

buildroot/share/PlatformIO/scripts/mks_robin_pro.py

@@ -1,39 +1,5 @@
-import os
-Import("env")
-
-# Relocate firmware from 0x08000000 to 0x08007000
-for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_ADDR":
-        env['CPPDEFINES'].remove(define)
-env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
-
-custom_ld_script = os.path.abspath("buildroot/share/PlatformIO/ldscripts/mks_robin_pro.ld")
-for i, flag in enumerate(env["LINKFLAGS"]):
-    if "-Wl,-T" in flag:
-        env["LINKFLAGS"][i] = "-Wl,-T" + custom_ld_script
-    elif flag == "-T":
-        env["LINKFLAGS"][i + 1] = custom_ld_script
-
-# Encrypt ${PROGNAME}.bin and save it as 'Robin.bin'
-def encrypt(source, target, env):
-    import sys
-
-    key = [0xA3, 0xBD, 0xAD, 0x0D, 0x41, 0x11, 0xBB, 0x8D, 0xDC, 0x80, 0x2D, 0xD0, 0xD2, 0xC4, 0x9B, 0x1E, 0x26, 0xEB, 0xE3, 0x33, 0x4A, 0x15, 0xE4, 0x0A, 0xB3, 0xB1, 0x3C, 0x93, 0xBB, 0xAF, 0xF7, 0x3E]
-
-    firmware = open(target[0].path, "rb")
-    robin = open(target[0].dir.path +'/Robin_pro.bin', "wb")
-    length = os.path.getsize(target[0].path)
-    position = 0
-    try:
-        while position < length:
-            byte = firmware.read(1)
-            if position >= 320 and position < 31040:
-                byte = chr(ord(byte) ^ key[position & 31])
-                if sys.version_info[0] > 2:
-                    byte = bytes(byte, 'latin1')
-            robin.write(byte)
-            position += 1
-    finally:
-        firmware.close()
-        robin.close()
-env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", encrypt);
+#
+# buildroot/share/PlatformIO/scripts/mks_robin_pro.py
+#
+import marlin
+marlin.prepare_robin("0x08007000", "mks_robin_pro.ld", "Robin_pro.bin")

buildroot/share/PlatformIO/scripts/stm32_bootloader.py

@@ -1,7 +1,7 @@
 #
 # stm32_bootloader.py
 #
-import os,sys,shutil
+import os,sys,shutil,marlin
 Import("env")
 
 from SCons.Script import DefaultEnvironment
@@ -20,13 +20,7 @@ def noencrypt(source, target, env):
 if 'offset' in board.get("build").keys():
 	LD_FLASH_OFFSET = board.get("build.offset")
 
-  # Remove an existing VECT_TAB_OFFSET from CPPDEFINES
-  for define in env['CPPDEFINES']:
-    if define[0] == "VECT_TAB_OFFSET":
-      env['CPPDEFINES'].remove(define)
-
-  # Replace VECT_TAB_OFFSET with our LD_FLASH_OFFSET
-  env['CPPDEFINES'].append(("VECT_TAB_OFFSET", LD_FLASH_OFFSET))
+	marlin.relocate_vtab(LD_FLASH_OFFSET)
 
 	# Get upload.maximum_ram_size (defined by /buildroot/share/PlatformIO/boards/VARIOUS.json)
 	maximum_ram_size = board.get("upload.maximum_ram_size")
@@ -42,4 +36,5 @@ if 'offset' in board.get("build").keys():
 #
 board_keys = board.get("build").keys()
 if 'firmware' in board_keys and not 'encrypt' in board_keys:
-  env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", noencrypt)
+	import marlin
+	marlin.add_post_action(noencrypt)