Support for MEEB 3DP board (#18138)

platformio.ini

@@ -45,15 +45,7 @@ src_filter    = ${common.default_src_filter} +<src/HAL/STM32F1>
 lib_ignore    =
   Adafruit NeoPixel
   SPI
-lib_deps      =
-  LiquidCrystal
-  TMCStepper@>=0.6.2
-  U8glib-HAL=https://github.com/MarlinFirmware/U8glib-HAL/archive/bugfix.zip
-  Adafruit MAX31865 library@>=1.1,<1.2
-  LiquidTWI2=https://github.com/lincomatic/LiquidTWI2/archive/master.zip
-  Arduino-L6470=https://github.com/ameyer/Arduino-L6470/archive/0.8.0.zip
-  SailfishLCD=https://github.com/mikeshub/SailfishLCD/archive/master.zip
-  SlowSoftI2CMaster=https://github.com/mikeshub/SlowSoftI2CMaster/archive/master.zip
+lib_deps      = ${common.lib_deps}
   SoftwareSerialM=https://github.com/FYSETC/SoftwareSerialM/archive/master.zip
 
 [common_avr8]
@@ -287,6 +279,31 @@ board             = genericSTM32F103RC
 platform_packages = tool-stm32duino
 monitor_speed     = 115200
 
+#
+# MEEB_3DP (STM32F103RCT6 with 512K)
+#
+[env:STM32F103RC_cc_meeb_3dp]
+platform          = ${common_stm32f1.platform}
+extends           = common_stm32f1
+board             = MEEB_3DP
+platform_packages = tool-stm32duino
+build_flags       = ${common_stm32f1.build_flags}
+                    -DDEBUG_LEVEL=0
+                    -DSS_TIMER=4
+                    -DSTM32_FLASH_SIZE=512
+                    -DHSE_VALUE=12000000U
+                    -DUSE_USB_COMPOSITE
+                    -DVECT_TAB_OFFSET=0x2000
+                    -DGENERIC_BOOTLOADER
+extra_scripts     = pre:buildroot/share/PlatformIO/scripts/STM32F103RC_MEEB_3DP_create_variant.py
+    buildroot/share/PlatformIO/scripts/STM32F103RC_MEEB_3DP.py
+lib_deps          = ${common.lib_deps}
+    USBComposite for STM32F1@==0.91
+    Adafruit NeoPixel=https://github.com/ccccmagicboy/Adafruit_NeoPixel#meeb_3dp_use
+lib_ignore        = SPI, LiquidCrystal
+debug_tool        = stlink
+upload_protocol   = dfu
+
 #
 # STM32F103RC_fysetc
 #