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public:calculator:info:dm42_info [21/09/24 18:56 BST] – [Firmware] johnpublic:calculator:info:dm42_info [01/02/26 08:36 GMT] (current) – [Update January 2026] john
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 |15/4/23 |06434 |3.22 |3.0.15|3.24|{{ :public:calculator:dm42_3.24.zip |}}| |15/4/23 |06434 |3.22 |3.0.15|3.24|{{ :public:calculator:dm42_3.24.zip |}}|
 | 27/07/24 | 06434 | 3.23 | 3.1.8 | 3.25 | {{ :public:calculator:info:dmcp_flash_3.25_dm42-3.23.zip |}} | | 27/07/24 | 06434 | 3.23 | 3.1.8 | 3.25 | {{ :public:calculator:info:dmcp_flash_3.25_dm42-3.23.zip |}} |
 +| 11/02/26 | 0644 | 3.26 | 3.3.10 | 3.29 | {{ :public:calculator:info:dmcp_flash_3.29_dm42-3.26.zip |}} |
 +
  
 === 3rd party Firmware === === 3rd party Firmware ===
  
   * DM42 restoration : {{ :public:calculator:info:dm42_pgm_qspi.zip |}}   * DM42 restoration : {{ :public:calculator:info:dm42_pgm_qspi.zip |}}
 +    * DM42 pgm only (no QSPI) : {{ :public:calculator:info:dm42-3.23.zip |}}
 +  * Generally I find C47 to be sluggish and laggy and although the features are great the User Experience is poor.
 +    * The Dev. Team seem to spend more time adding new features/functions and don't really care that it's very slow
 +    * Reports indicate that the [[https://www.swissmicros.com/product/model-dm42n | DM42n]] runs C47 much faster
  
 ^Date^Serial No.^Firmware^Version^DMCP Version^Firmware Files^ ^Date^Serial No.^Firmware^Version^DMCP Version^Firmware Files^
-| 21/09/24 | 06434 | C47 | 0.109.02.05 | 3.25 | {{ :public:calculator:info:c47_010824_release.zip | C47 Release 1 August 2024 }} |+| 21/09/24 | 06434 | C47 | 0.109.02.05 | 3.25 | {{ :public:calculator:info:c47_010824_release.zip | C47 Release : 1 August 2024 }} | 
 +| 18/02/25 | 06434 | C47 | 0.109.02.07b4 | 3.25 | {{ :public:calculator:info:c47-dmcp-00.109.02.07b4.zip | C47 Release : 2 Jan 2025 }} |
  
 ===== RTC Correction ===== ===== RTC Correction =====
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 </code> </code>
  
-==== RTC Error ====+==== 2022 ==== 
  
 ^Start^Stop^Accumulated Error (s)^Rate Error (s/d)^Comments^ ^Start^Stop^Accumulated Error (s)^Rate Error (s/d)^Comments^
 |28/3/22 |7/11/22 |-5.8|0.0 | -5.8s over period 224 days = -0.03s/d | |28/3/22 |7/11/22 |-5.8|0.0 | -5.8s over period 224 days = -0.03s/d |
-|15/04/23 | 22/11/23 | -6.3 | 0.0  |  |+ 
 +==== Update January 2026 ==== 
 + 
 +Using my [[..:..:miscellany:watches:watchcheck|python Watchcheck]] 
 + 
 +^Date Start^Date Check^Delta^Latest Rate Error^Average Rate Error^Comments^ 
 +|26/01/26|  | -43.0 |  |  | Start Period. Correction -39.1ppm | 
 +|26/01/26|27/01/26| -43.2 | -0.3 | -0.3 | After 24 hours | 
 + 
  
  
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   * Firmware      : [[https://technical.swissmicros.com/dm42/firmware/]]   * Firmware      : [[https://technical.swissmicros.com/dm42/firmware/]]
-  * Documentation : [[https://technical.swissmicros.com/dm42/doc/dm42_user_manual.html|User Manual]]+  * Documentation : [[https://technical.swissmicros.com/dm42/doc/dm42_user_manual.html|Online HTML User Manual]] 
 +  * Documentation : {{ :public:calculator:info:dm42_user_manual.pdf | PDF Manual}}
   * Product Page  : [[https://www.swissmicros.com/product/dm42|DM42]]   * Product Page  : [[https://www.swissmicros.com/product/dm42|DM42]]
  
  
 +===== HP-42S Owner's Manuals =====
 +
 +Download from [[https://literature.hpcalc.org]]
 +
 +  * HP-42S Owners's Manual : [[https://literature.hpcalc.org/community/hp42s-om-en.pdf]]
 +  * HP-42S Programming Examples & Techniques : [[https://literature.hpcalc.org/community/hp42s-prog-en.pdf]]
  
 ===== DM42 Program Listings ===== ===== DM42 Program Listings =====
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-{{tag>DM42 calculator}}+{{tag>calculator dm42}}

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