[HAL][LPC176x] Pull out framework into separate repository

Framework and build platform now located at https://github.com/p3p/pio-framework-arduino-lpc176x and https://github.com/p3p/pio-nxplpc-arduino-lpc176x respectively

fix mkssbase leds

move hardware serial

remove hardware/software serial

Hardware Serial extraction

HardwareSerial ISRs

fix disabled serial2 causing Serial object to link

move usb devices out to framework

separate out adc/pwm peripheral function from hal.cpp

fix includes

remove unused pwm init

move adc

HAL header update

templated filtered adc

LPC1769 platform

platformio.ini

@@ -146,34 +146,31 @@ src_filter    = ${common.default_src_filter} +<src/HAL/HAL_DUE>
 monitor_speed = 250000
 
 #
-# NXP LPC1768 ARM Cortex-M3
+# NXP LPC176x ARM Cortex-M3
 #
 [env:LPC1768]
-platform          = nxplpc@<3.4.0
-board             = lpc1768
-board_build.f_cpu = 100000000L
-# Override default maximum RAM. LPC1768/9 do have 64k, but in 3 blocks (32K, 16K, 16K).
-# The first 32k block is used by default, while the others must be specifically targeted.
-board_upload.maximum_ram_size = 32768
-build_flags       = !python Marlin/src/HAL/HAL_LPC1768/lpc1768_flag_script.py ${common.build_flags}
-build_unflags     = -Wall
+platform          = https://github.com/p3p/pio-nxplpc-arduino-lpc176x/archive/master.zip
+framework         = arduino
+board             = nxp_lpc1768
+build_flags       = -DTARGET_LPC1768 -DU8G_HAL_LINKS -IMarlin/src/HAL/HAL_LPC1768/include -IMarlin/src/HAL/HAL_LPC1768/u8g ${common.build_flags}
 lib_ldf_mode      = off
-lib_extra_dirs    = frameworks
-lib_deps          = CMSIS-LPC1768
-  https://github.com/MarlinFirmware/U8glib-HAL/archive/dev.zip
-  https://github.com/teemuatlut/TMCStepper.git
-extra_scripts     = Marlin/src/HAL/HAL_LPC1768/debug_extra_script.py, Marlin/src/HAL/HAL_LPC1768/lpc1768_flag_script.py, Marlin/src/HAL/HAL_LPC1768/upload_extra_script.py
+extra_scripts     = Marlin/src/HAL/HAL_LPC1768/upload_extra_script.py
 src_filter        = ${common.default_src_filter} +<src/HAL/HAL_LPC1768>
 monitor_speed     = 250000
-debug_tool        = custom
-debug_server      =
-  C:\Program Files (x86)\SEGGER\JLink_V618d\JLinkGDBServerCL.exe
-  -select USB
-  -port 2331
-  -device LPC1768
-  -if JTAG
-  -speed auto
-  -noir
+lib_deps          = https://github.com/MarlinFirmware/U8glib-HAL/archive/dev.zip
+  https://github.com/teemuatlut/TMCStepper.git
+
+[env:LPC1769]
+platform          = https://github.com/p3p/pio-nxplpc-arduino-lpc176x/archive/master.zip
+framework         = arduino
+board             = nxp_lpc1769
+build_flags       = -DTARGET_LPC1768 -DU8G_HAL_LINKS -IMarlin/src/HAL/HAL_LPC1768/include -IMarlin/src/HAL/HAL_LPC1768/u8g ${common.build_flags}
+lib_ldf_mode      = off
+extra_scripts     = Marlin/src/HAL/HAL_LPC1768/upload_extra_script.py
+src_filter        = ${common.default_src_filter} +<src/HAL/HAL_LPC1768>
+monitor_speed     = 250000
+lib_deps          = https://github.com/MarlinFirmware/U8glib-HAL/archive/dev.zip
+  https://github.com/teemuatlut/TMCStepper.git
 
 #
 # Melzi and clones (ATmega1284p)