Homing on the Ender 3 with HOMING_FEEDRATE_XY set to 50*60 was shown (#12074) to cause the end-stop micro-switches to bottom out, causing the carriage for both X and Y axis to physically crash into the micro switch. Reducing the homing speed prevents the switches from bottoming out.
* Add traceback after watchdog timeout
Add the cpability to perform a traceback following a watchdog timeout.
* Enhanced hardware SPI
Allow use of either SSP0 or SSP1.
Ensure that no data is left in I/O buffers after calls to enable sharing of SSP hardware.
* Make flash emulation of eeprom the default
Make use of flash for eeprom storage the default. This means that usage of eeprom will not cause USB drive mount/unmount operations.
* Allow sharing of SD card
SD card I/O operations from the USB stack take place in idle loop, rather than at interrupt time. Allowing sharing of the SPI bus.
New configuration options to allow usage of the SD card to be specified.
* Fix problem with hardware SPI pins
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
* Clean up Temperature PID
* Improve EEPROM read/write/validate
* Group `SINGLENOZZLE` saved settings
* Group planner saved settings
* Group filament change saved settings
* Group skew saved settings
* Group `FWRETRACT` saved settings
