CamelForth in C, by Dr. Brad Rodriguez
https://github.com/wa1tnr/camelforth-rp2040-b-MS-U
October, 2021:
The present project is archived for reference only. Please see the above archive for current work.
Reasonably well debugged - functional Forth interpreter 04:10 UTC Tue 09 Feb 2021
Port: rp2040, Raspberry Pi Pico target board, February, 2021.
CamelForth
A Forth in C by Dr Brad Rodriguez
Forth interpreter for the RP2040 and Raspberry Pi Pico.
Requires pico-sdk and is modeled on pico-examples.
The /dev/ttyACM0 is the primary interface (USB).
(Reference host PC is Linux Debian amd64)
Using CP2104 USB-to-USART bridge, the secondary interface (in Linux host PC) is /dev/ttyUSB0, but that is arbitrary (you can bridge using other methods and chips).
Connected to UART0 on the pico.
BUILD ENVIRONMENT - bare bones text interpreter
no Forth functionality at all - not even base code.
Just keyboard echo loop.
END.