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public:calculator:info:dm32_info [24/01/26 09:39 GMT] – [Hardware / Firmware issue] johnpublic:calculator:info:dm32_info [01/02/26 08:36 GMT] (current) – [Update January 2026] john
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 ==== Changes ==== ==== Changes ====
 +
 +
 +++++ Changelog | 
  
 === DM32 v2.11: 2025-12-05 === === DM32 v2.11: 2025-12-05 ===
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     Fixed: Memory corruption in EQN list (reported by Raul). Exhibit itself during EQN edit by displaying "NO EQN" on other lines and all those equations are lost.     Fixed: Memory corruption in EQN list (reported by Raul). Exhibit itself during EQN edit by displaying "NO EQN" on other lines and all those equations are lost.
  
 +++++
    
 For the full list see [[https://technical.swissmicros.com/dm32/firmware/history.html]] For the full list see [[https://technical.swissmicros.com/dm32/firmware/history.html]]
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 </code> </code>
  
-==== RTC Error ====+==== 2023 ====
  
 ^Start^Stop^Accumulated Error (s)^Rate Error (s/d)^Comments^ ^Start^Stop^Accumulated Error (s)^Rate Error (s/d)^Comments^
 | 20/07/23 | 22/07/23   | -3.5 | -2.0   | First 2 days initial test. -23ppm | | 20/07/23 | 22/07/23   | -3.5 | -2.0   | First 2 days initial test. -23ppm |
 | 22/07/23 | 22/11/23  | +17.3 | +0.1 | with correction 24.2 (22.9ppm) applied = slightly over-corrected? | | 22/07/23 | 22/11/23  | +17.3 | +0.1 | with correction 24.2 (22.9ppm) applied = slightly over-corrected? |
 +
 +==== Update January 2026 ====
 +
 +Using my [[..:..:miscellany:watches:watchcheck|python Watchcheck]]
 +
 +^Date Start^Date Check^Delta^Latest Rate Error^Average Rate Error^Comments^
 +|27/01/26|  | +4.4 |  |  | New Period. Correction 22.9ppm |
  
  
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 I received the following email from Swiss Micros in 8th March 2024 explaining a hardware change that's required to early production units to ensure correct operation with the latest firmware, which allows the processing speed to increase when powered via USB (as per the DM41X and DM42). I received the following email from Swiss Micros in 8th March 2024 explaining a hardware change that's required to early production units to ensure correct operation with the latest firmware, which allows the processing speed to increase when powered via USB (as per the DM41X and DM42).
 +
 +++++ email re: hardware mod | 
  
 <code> <code>
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 </code> </code>
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 +
  
 I find the DM32 plenty fast enough running on batteries, so I'm not necessarily going to be plugging it it to boost its performance **but** I do want to stay up to date with firmware changes and don't want to risk any problems, so I've ordered the replacement SMD resistor and plan to swap it myself. I find the DM32 plenty fast enough running on batteries, so I'm not necessarily going to be plugging it it to boost its performance **but** I do want to stay up to date with firmware changes and don't want to risk any problems, so I've ordered the replacement SMD resistor and plan to swap it myself.
  
  
-** update 24/01/26 ** - I //think// I did the swap.... after receiving the new resistor.... I'm fairly sure I did, anyway!+** update 24/01/26 ** - I //think// I did the swap.... after receiving the new resistor, not sure of the date.... I'm fairly sure I did, anyway! 
 + 
 + 
 + 
 +===== HP-32Sii Owner's Manual ===== 
 + 
 +Download from [[https://literature.hpcalc.org/]]
  
 +  * HP-32sii Owner's Manual : [[https://literature.hpcalc.org/community/hp32sii-om-en.pdf]]
  
  

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