A Brother WP-1 serial interface #7: starting a bespoke terminal emulator
Channel: Poking Technology
Date: 2022-04-24

In whch yr hmbl svt tries to make his Brother word processor into a serial terminal.

More of a series where I turn (non-destructively) my new Brother WP-1 word processor, which its excellent keyboard and letterbox amber CRT, into a sleeper system based around a Raspberry Pi. As the built-in UART isn't usable, I build by own from a cheapo PSoC4 development kit and Verilog, interfacing directly to the Brother's system bus.

After realising that Linux doesn't get on well with the ADM3a, I start work on the state machine for a new, bespoke VT102 terminal emulator. There turns out to be quite a lot of it.