SwissMicros' DM42

#### HP42S V.S. DM42

HP-42S V.S. DM42

#### Internal view of a DM42

DM42 internals

Closeup view of the PCB

DM42 uses STM32L476VGT6

#### OFFIMG example

Yokohama bay, JAPAN

"Behind the Great Wave at Kanagawa", Katsushika Hokusai

"Tama River in Musashi Province", Katsushika Hokusai

SEE ALSO
HP-42s Memory upgrade and overclock

APPENDIX

Program library

- ABC2XY - Triangulation, tree known distance to the coordinates conversion
- AVR - Adjustable voltage regulator (such as LM317 or TL431) solver program
- BPFFL - Center frequency and Q of a Fliege band-pass-filter
- BPFMF - Gain coefficent, center frequency and Q of a multiple-feedback band-pass-filter
- E24 - Find nearest fraction(s) in the E24 numbers
- Factr - Factor a positive integer
- Frac - Fractional approximation
- LCM/GCD - LCM and GCD of two positive integers
- LCR - Resonant frequency of a LC resonator
- LPFMF - Gain coefficent, center frequency and Q of a multiple-feedback low-pass-filter
- L• - Inductanse of a straight conductor of circular section
- L- - Inductanse of a straight conductor of thin flat section
- NTC10K - NCP21XV103 NTC thermistor Temperature V.S. Resistance function to solve
- OST - SOLVE alternative, numerical solution of a lenear equation using Ostrowski's method
- RI - Rational interpolation
- Pt100 - Pt100-1997 Temperature V.S. Resistance function to solve
- μZw, μwZ - Synthesize/Analyze microstrip transmission line
- Vn - Input refered voltage noise of an operational amplifier
- Z→S - Impedance Z to S
_{11} scattering parameter conversion
- ZdSL - Differential impedance of an edge coupled stripline solver program

External LINKS
www.swissmicros.com - DM SwissMicros

thomasokken.com - Free42 : An HP-42S Calculator Simulator

www.hpmuseum.org - The Museum of HP Calculators

STMicroelectronics

Copyright (c) HOSODA Takayuki. All rights reserved.

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