HP82143 Processor details

[blackjetrock]

(06-02-2023 10:10 AM)MeindertKuipers Wrote:  Hi Andrew,

There is quite a lot of information about the HP82143 printer, and I happened to have made a deep dive into this recently. Getting this printer emulated is actually one of the things I would like to implement on a platform like this.
Best is to send the characters to print straight into a USB emulated serial port (or a real UART) to a hasot computer running Christophs HP82240 emulator in HP82143 mode, so you do not have to worry about the printing itself.

My recommendation is to start with Doug Wilders great article 'HP82143A Printer Study' (available at TOS).

More than willing to help, easiest is probably direct communication with me for questions.

I have ordered a set of Pico's and I am installing the toolchain. Permitting other non calculator related activities I should be able to get a setup up and running in a few weeks

Thanks for that information. I have also found useful stuff in an emulator, so I think I'll be ok.
I think those printer emulators are Windows, and I don't have any Windows machines, so I'll have
to use USB text.

I started with Eclipse on the Pico toolchain but an update lost all my config files (about 20) so I moved to emacs and GDB for debug if needed. It's much faster to write,burn,debug.

Andrew