.. index:: numworks calculator, calculator

.. _numworks:

Numworks Calculator
===================

.. image::  pics/numworks-calculator.jpg

https://www.numworks.com/simulator/

I haven't been this excited about a calculator since I first drooled over pictures of the new HP35 (that I couldn't afford) 35 years ago!

Appearing in release 2.4.7; Forth drivers by Wolfgang Strauss for the brilliant Open Source Numworks Calculator.

Is this the words first *real RPN calculator* ? ;-)
::

 mecrisp-stellaris-2.4.7/numworks-ra
 .
 ├── README
 ├── completesources.txt
 ├── cornerstone.txt
 ├── delay.txt
 ├── display.txt
 ├── editor.txt
 ├── epsilon.bin
 ├── graphics-unicode-8x16.txt
 ├── io.txt
 ├── keyboard.txt
 ├── mecrisp-stellaris-numworks-with-sources.bin
 ├── mecrisp-stellaris-numworks-with-sources.hex
 ├── mecrisp-stellaris-numworks.bin
 ├── multitask-debug.txt
 ├── release
 └── terminal
 
Readme
------
::

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 Flashing of Mecrisp-Stellaris to the numworks calculator:
 
 dfu-util -i 0 -a 0 -s 0x08000000 -D mecrisp-stellaris-numworks-with-sources.bin
 
 No need to disassemble your calculator, terminal is on USART6: PA11 = D- = TX. PA12 = D+ = RX.
 Just cut an old USB cable and connect it to a USB-serial-brige with 115200 Baud 8N1.
 
 You need to type "eraseflash" once to clear the free dictionary space after you flash the Forth binary,
 as dfu-util leaves old contents in flash blocks which are not used.

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 Do not forget to flash back to Epsilon at the end of the day or connect to a power supply,
 as the Forth binary will drain your battery as long as sleep modes are not implemented:
 
 dfu-util -i 0 -a 0 -s 0x08000000 -D epsilon.bin
 
 Epsilon 1.6.0 binary included for convenience purposes only.
 Compiled from sources found here: https://github.com/numworks/epsilon/
 Unlike Mecrisp-Stellaris, Epsilon is NOT licensed under GPL3 !
 
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