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With a modified firmware (M80 and M1B), the additional memory allows for up to 129 or even 230 registers and up to 1603 or 896 programs steps. Newer DM15 models feature a better keyboard and more RAM ( LPC1115). It closely emulates the functionality of the original HP-15C by running the original ROM image in an emulator on an ARM Cortex-M0-based NXP LPC1114 processor. On 6 February 2012, SwissMicros (previously known as RPN-Calc) introduced a miniature clone named DM-15CC approximating the size of an ID-1 credit card (88 mm × 59 mm × 7 mm).
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EBAY HEWLETT PACKARD 42S RPN SCIENTIFIC FOR ANDROID
Another version is commercially available for Android and iOS devices. Īn official PC emulator for the 15C is available as freeware from Hewlett-Packard.
EBAY HEWLETT PACKARD 42S RPN SCIENTIFIC MANUAL
The original manual did not include the new self-test procedure.
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This model is powered by two CR2032 batteries, and can easily be differentiated from the original model by the "Limited Edition" script below the company logo as well as the black text on brushed metal back label, as opposed to the white text on black of the original.The power consumption of the processor is greater than that of the original HP-15C, as HP did not use the same technology in any of the future models. The calculator was released alongside the HP 12c 30th Anniversary Edition. It is based on a flashable controller utilizing the same ARM7TDMI core already used in the 2008 revision of the 12C but in a different package, an Atmel AT91SAM7L128-AU running an emulator written by Cyrille de Brébisson to execute the old HP Nut code much faster than on the original hardware. HP 15c Limited Edition Īfter showing a prototype labelled " HP 15c+" at the HHC 2010, HP announced the HP 15c Limited Edition (NW250AA) on 1 September 2011.