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Seeking Local Help with WP34s
03-29-2016, 06:41 PM (This post was last modified: 03-29-2016 06:44 PM by BarryMead.)
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RE: Seeking Local Help with WP34s
(03-29-2016 02:30 PM)lcwright1964 Wrote:  Success! I have my ANCIENT Compaq Presario at the office, so I took one unit and my paraphrenalia in today.

Flashed with the new firmware the first time...
Flashing the WP34s requires VERY PRECISE timing as the data is transferred at 115200 bits per second. Any deviation from a simple standard serial port can throw off the timing including emulation hardware simulation, and other such modern creations. While these things are ALMOST the same as the original thing that they simulate or emulate, there can be tiny differences especially to timing.

You may find that you are able to load/save programs to/from your WP34s with your modern emulation/simulation computer even though flashing does not work, because the Computer to Calculator communication used to load/save programs and data take place at a less critical slower 9600 bits per second and are therefore more forgiving of tiny timing issues.

Great News on reviving your WP34s calculators!
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RE: Seeking Local Help with WP34s - TASP - 03-27-2016, 01:22 PM
RE: Seeking Local Help with WP34s - BarryMead - 03-29-2016 06:41 PM



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