Prusa-Firmware/CUSTOM.md

Changelog of local customizations

Version 15-Mar-2018 (v3.1.0 r10)

Updates and mods

• Default to 250000 Baud for platformio builds
• Replace watchdog (disabled by default)

Bug fixes

• LA bugfix from @Sebastianv650

Version 27-Feb-2018 (v3.1.0 r9)

This release incorporates a number of experimental features and structural changes

Updates and mods

• Integration of @Sebastianv650 Linear Advance v1.5 Details can be found in the Marlin documentation.
• New internal ISR structuring to prevent temperature / fan ISR from stalling stepper and allowing serial RX to be highest priority. CheckRX is no longer needed.
• It is now possible to use the USB interface at 250000 Baud without errors provided the host can handle higher data rates. A firmware rebuild is required to enable capability.
• Add Calibration LCD menu item for optionally disabling XY skew correction.
• XY Skew correction menu item only enabled only when skew is 'perfect' (< 0.1deg).

Bug fixes

• Fix HOME-Z to correct location (calibration point). Fixes dinging the heat-bed after Setup Wizard
• Remove attempted recovery from RX buffer full (just drop chars). This includes a fix to append 'ok' after resend request when line number or checksum error detected. Addresses Prusa-Firmware issue #331
• Use CRITICAL_SECTION in LCD menu and buttons sync.
• Eliminate excessive LCD redraw and flicker.

Version 20-Dec-2017 (v3.1.0 r4)

Updates and mods

• Allow BAUDRATE override by build opts (default 115200).
• Remove unused source files (qr_solve, vector_3).
• Use SDK version of LiquidCrystal library (faster draw).
• Adjust extra filament load extrusion to 15mm.
• Add private build variant configuration version number.

Bug fixes

• Init serial before lcd to elminate random garbage output.
• Remove redundant splash screen init.

Version 22-Nov-2017

Updates and mods

• Add extra 25mm to manual (LCD) filament load extrusion.
• Merge latest Prusa3D firmware release v3.1.0 changes.

Bug fixes

• Fix M110 G-code compatibility

Version 9-Nov-2017

New features

• Add 8-point Mesh Bed Correction offsets (+/- 500um) support (optional: MBC_8POINT)
  Points labeled a thru h starting at the front/home position. Supported by G80 command and persisted to EEPROM via LCD menus.

       B A C K
    +-----------+
    | f   g   h |
    | d   X   e |
    | a   b   c |
    +-----------+
      F R O N T

• Replace LiquidCrystal display driver with recent version (experimental)
• Add ability to build single language version (see langtool.pl). This feature saves ~32K program space.
• Add custom G-code to dump and restore EEPROM (optional: EEPROM_SAVE_RESTORE)

   M767: Dump EEPROM to serial (suitable for restore) or to SD File
     Ex: M767 S --> dump to SD card 'eesave.hex'
         M767 P<addrs> --> Write M768 P<addrs> V<value> to SERIAL
         M767 X --> dump entire EEPROM to SERIAL
   M768: Set EEPROM location from value
     Ex: M768 P<addrs> V<value>
         M768 R --> restore from SD card

• Allow embedded colons (':') in G-code. Ex: "M117 Time is 11:56" now works!
• Reduce surface artifacts caused by XY skew compensation (experimental). Ref: Issue #47
• Clarify temperature and PID calibration menu items. Setup Wizard display name changed.

Bug fixes

• Complete cleanup of build warnings.
• Removal of dead code and unreferenced variables.
• Fixed a couple of array out-of-bounds references.