<-[[.:start]] ====== DM41L Info ====== ===== Purchase Information ===== * Date : 26 Aug 2024 * From : Swiss Micros (Direct) * Price : approx £200 * Serial : 05121 * Battery Change : 26/08/24 ===== Firmware ===== {{ :public:calculator:info:cp210x_universal_windows_driver.zip |}} ^Date^Serial No.^Firmware^Version^Firmware Files^Firmware Tool^ | 26/08/24| 05121 | DM41 | V32 |{{ :public:calculator:info:dm41_32.zip |}}|{{ :public:calculator:voyage_firmware_tool.zip |}}| | 01/02/25 | 05121 | DM41 | V33 | {{ :public:calculator:info:dm41_33.zip |}} | | | 21/12/25 | 05121 | DM41 | V34 | {{ :public:calculator:info:dm41_34.zip |}} | Linux, using lpc21isp | ===== RTC ===== * RTC is not capable of calibration/correction? * Perhaps the HP41CX Time corr. feature works? * Gather data on inherent time error for a period and then try to change the values via HP41CX functionality ==== Update January 2026 ==== Using my [[..:..:miscellany:watches:watchcheck|python Watchcheck]] ^Date Start^Date Check^Delta^Latest Rate Error^Average Rate Error^Comments^ |23/01/26 | |+49.6 | | | New Period Start | |23/01/26|24/01/26 |+50.6 |+1.0 |+1.0 | After 24 hours | |23/01/26|26/01/26|+52.8 |+1.2 |+1.1 | After 3 days | |23/01/26|27/01/26 |+53.6 |+1.0 |+1.1 | After 4 days | ===== Swiss Micros Info ===== * Firmware : [[https://technical.swissmicros.com/voyager/firmware/]] * Documentation : [[https://technical.swissmicros.com/voyager/doc/voyager_user_manual.html|Online HTML User Manual]] * Documentation : {{ :public:calculator:info:voyager_user_manual.pdf | PDF Manual}} * Product Page : [[https://www.swissmicros.com/product/dm41l|DM41L]] ===== HP-41CX Owner's Manuals ===== Download from [[https://literature.hpcalc.org]] * HP-41CX Owner's Manual Vol. 1 : [[https://literature.hpcalc.org/community/hp41cx-om-vol1-en.pdf]] * HP-41CX Owner's Manual Vol. 2 : [[https://literature.hpcalc.org/community/hp41cx-om-vol2-en.pdf]] * HP-41CX Quick Reference Guide : [[https://literature.hpcalc.org/community/hp41cx-qrg-en.pdf]] ===== Further Information ===== * [[public:calculator:progs:dm41l_progs|]] * [[..:bench2|]] {{tag>calculator dm41l}}