DM42 Program Firmware History

DM42 v3.21 (built with DMCP 3.23): 2022-01-28

• Updated Free42 to version 3.0.9
• with additional patch: e033a384

• None

DM42 v3.20 (built with DMCP 3.22): 2021-08-31

• Updated Free42 to version 3.0.5
• FIX: AGRAPH display corrupted by menu (forum post)
• FIX: Output of the MEM command not fully displayed in program mode (forum post)
• Added new font in two sizes (default after clean start)
• Fixes in original fonts

• Font updates and fixes

• Updated Settings menu

• Updated Settings menu
• Updated About section

DM42 v3.19 (built with DMCP 3.21): 2021-05-13

• Free42 update to 3.0.3

DM42 v3.18 (built with DMCP 3.21): 2021-04-16

• Free42 update to 3.0.2
• PGMMENU patch
• All 6 special directories created after a FAT format

• Stabilization fixes to prevent issues related to the DM42 3.18 update

DM42 v3.18 beta 2 (built with DMCP 3.21): 2021-03-30

• Fixed allocation of the complex numbers

DM42 v3.18 beta 1 (built with DMCP 3.21): 2021-03-26

• Free42 update to 3.0.1
• Register allocation patch
• All 6 special directories created after a FAT format

• Stabilization fixes to prevent issues arising from DM42 3.18

DM42 v3.17 (built with DMCP 3.20): 2021-03-12

• Quick fix release only, no changes in DM42
• Fixed hypot() problem (see forum post for more details)

DM42 v3.16 (built with DMCP 3.20): 2020-10-09

• Free42 update to 2.5.20
• Fixed: No LCD repaint during PSE when RefLCD == 0
• Help File - Added Free42/DM42 flags

• Help system: Support for links between files
• Help system: Numpad like navigation keys

DM42 v3.15 (built with DMCP 3.18): 2020-03-30

• Free42 core update to 2.5.16
• State file extension renamed from '.s42' to '.f42' for compatibility with other platforms
• It is still possible to load '.s42' files and "Load State File" screen shows all '*.?42' files now
• First load of foreign '.f42' file appends current DM42 specific state at the end of file
• 'Save State File' screen shows all '*.?42' files too
• New state files have '.f42' extension and old '.s42' state files are renamed to '.f42' when used in 'Statefile Save'
• Thus, saved state files have '.f42' extension and should be directly usable on other platforms

• Fixed labels for date format change in 'Set Date' screen to match 'Set Time' time format change.
• File list: File filtering fix
• File list: Fix sporadic repeat of first chars in some filenames
• File list: Fix displaying zeroes and eventual hang at some pointwhile displaying directories with 100+ files.

DM42 v3.14 (built with DMCP 3.15): 2019-07-24

• New DMCP+DM42 combo fw only
• Look below for changes in DM42 v3.14 and DMCP v3.15

• Improve response to simultaneous key presses

DM42 v3.14 (built with DMCP 3.14): 2019-07-16

• Update Free42 core to 2.2
• Fixed block graphics in 'Graphics in text' print
• Fixed bitmap error in print to graphics file
• Removed BOM from the printed text file
• Double NL printer flag
• Format date according to the flag 67
• Added RTC calibration possibility using /rtccalib.cfg file
• Added [<--] as exit key to menus and screens

• LCD handling enhancement
• Stability enhancement
• Keyboard handling enhancement

DM42 v3.13 (built with DMCP 3.13): 2019-03-15

• Help file renamed to dm42help.htm (automatically renames index.htm (you can download latest version from https://technical.swissmicros.com/dm42/fat/HELP/)
• Updated year in copyright messages
• Update Free42 core to 2.0.24
• Added flag 64 - value is 0 or 1 whether the shift was inactive or active (respectively) before last key press (useful in combination with KEYG/KEYX)

• File listing enhancements - supports more files in directory listings, directory browsing and two column display
• Clear history buffer when help file changed
• Fix of hangs on some boards in various places (before or after flashing from FAT, after USB plug-in)

DM42 v3.12 (built with DMCP 3.12): 2019-01-22

• Update Free42 core to 2.0.22
• Fixed message font size (earlier followed font size of topmost register)
• Fixed missing pixels (as reported in EEVblog #1159 (https://www.youtube.com/watch?v=Ong91Ji3iDk)

• Firmware update from FAT, doesn't wait for key press after successful flashing
• RESET+[+] jumps directly to MSC mode (checks for fw and keymap file and installs them without confirmation)
• Support for reset.bmp (loaded from /reset.bmp)
• Clarify DMY/MDY switching in date setting screen by removing [-1m] and adding [DMY]/[MDY].
• (Devel) System keymap support (loaded from /keymap.bin)
• (Testing) "System->Power OFF mode" menu item

DM42 v3.11 (built with DMCP 3.11): 2018-10-11

• Reverted to Intel® Decimal Floating-Point Math Library to version 2.0 Update 1
• Fixed div symbol problem if used as first character in alpha mode

• PDF version of user manual now available

• Fix for "Bug when connecting to USB cable"

DM42 v3.10 (bult with DMCP 3.10): 2018-10-01

• Update of Intel® Decimal Floating-Point Math Library to version 2.0 Update 2
• Build parameters tuned which gives ~5% speedup for calculations
• Calc help file updated to match current Setup menus help_file_20180831.zip
• Off-images with flipped row order are accepted now
• Added printing to file (see "Print to File" chapter in DM42 User Manual)
• Fix the issue with multi line messages and menus
• Updated firmware build process - single firmware file should work now with dm_tool, dfu-util and from FAT update.

• Print to File menu and functionality

• Upgrade system interface for bitmap handling to support print to file from DM42PGM

DM42 v3.9.1 (built with DMCP 3.9a): 2018-08-14

• Update to Free42 2.0.21
• Support for different font sizes in register stack (3. Settings > | 4. Stack Font Sizes >)
• Added LXYZT layout to stack layouts
• Displaying 'No program selected' when leaving 'save program' menu if nothing is selected (exited without note in earlier versions)

• Firmware Update
• Program Decoder/Encoder
• Changes since v3.7
• Quick Update Guide
• Program loading/update
• DMCP System Menu

• Menu lines aligned after line number

• Small number of boards exhibited excessive power-off current - fixed

• Fixed jump out of system menu to sleep
• Added program/system interface comparison to program info screen
• Extended DMCP interface to version 3.8 (added run_help_file() function)

v3.7 : 2018/06/03

• Firmware split in two parts, DMCP and F42PGM

v3.5 : 2018/03/25

• Flashing firmware from FAT disk (accessible from system menu)
• Second row of keys doesn't duplicate first row while the A..F menu is displayed
• Update to Free42 2.0.20

v3.4a : 2018/03/07

• Fixed nonfunctional 'Beep Mute' in Settings menu

v3.4 : 2018/03/06

• Speed improvement in battery mode
• Occasional lockup fix
• No need for RESET after fw flashing
• Fixed SEED 0
• Update to Free42 2.0.17
• Permanent menu flag (toggled by F2) now saved to state file

v3.3 : 2018/02/12

• Modification of date/time settings dialogs
• Day increment problem fixed
• Prevent Help/Setup while program is running
• Added warning note to USB FAT disk screen
• Jump out of USB FAT disk mode now requires confirmation
• Changed LCD saving at power-down
• Partial input formatting fixed
• QSPI low-battery protection
• Force manual RESET after flashing
• Update to Free42 V2.0.11

v3.2 : 2018/01/06

• UTF-8 up/down triangles swap fix
• Heavy calculation hang fix
• Free42 updated to V2.0.8
• Force RESET after flashing

v3.1 : 2017/12/22

• Help text drawing fixes
• Free42 updated to V2.0.7
• '×' and '÷' glyphs in help system
• Font width calculation

v3.0 : 2017/12/08

• Initial public release