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https://github.com/Manawyrm/fxIP
TCP/IP for Casio fx-9860 graphical calculators (with SLIP support, uIP stack)
https://github.com/Manawyrm/fxIP
Last synced: 2 months ago
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TCP/IP for Casio fx-9860 graphical calculators (with SLIP support, uIP stack)
- Host: GitHub
- URL: https://github.com/Manawyrm/fxIP
- Owner: Manawyrm
- License: mit
- Created: 2021-05-22T20:47:30.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2022-06-05T09:05:52.000Z (over 2 years ago)
- Last Synced: 2024-08-03T01:12:17.514Z (6 months ago)
- Language: C
- Size: 240 KB
- Stars: 221
- Watchers: 7
- Forks: 8
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-rainmana - Manawyrm/fxIP - TCP/IP for Casio fx-9860 graphical calculators (with SLIP support, uIP stack) (C)
README
# fxIP
### TCP/IP stack and IRC client for Casio fx-9860/9750 calculators
[YouTube video of fxIP's IRC client, connecting to irc.libera.chat](https://www.youtube.com/watch?v=afkrucsMMrc)
[YouTube video of fxTerm, a simple RS232 terminal application](https://www.youtube.com/watch?v=epFX8K0dhdY)
fxIP is a port of [uIP 1.0](https://github.com/adamdunkels/uip) to Casio fx-9750/fx-9860 calculators.
It (currently) requires calculators with a SuperH SH4a CPU, needs quite a bit of SRAM.
fxIP connects to IP networks via SLIP encapsulation over the 3-pin 2.5mm 5V serial port/UART.
By default, it connects to irc.libera.chat (without SSL).
[TobleMiner](https://github.com/TobleMiner) wrote the SCIF UART driver, the ringbuffer implementation, the object-log storage,
which is used to store IRC and log messages for display and fixed issues with endianess on SuperH and the SLIP encapsulation.
### Network setup (needs root)
```
slattach -s 115200 -p slip -v -d -L /dev/ttyUSB0
ip addr add 10.10.10.1/24 dev sl0
ip link set mtu 576 dev sl0
ip link set sl0 up
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
echo "1" > /proc/sys/net/ipv4/ip_forward
```
### Building Add-In
Requires [fxsdk](https://gitea.planet-casio.com/Lephenixnoir/fxsdk) and gint to build.
gint needs to be patched using gint.patch before building.
```
touch src/main.c && make clean && fxsdk build-fx && cp -f Fxip.g1a ~/Exchange/Test/
```
### Credits
fxIP uses the following fantastic projects:
[fxsdk](https://gitea.planet-casio.com/Lephenixnoir/fxsdk) by [Lephenixnoir](https://gitea.planet-casio.com/Lephenixnoir)
[c-object-log](https://github.com/TobleMiner/c-object-log) by [TobleMiner](https://github.com/TobleMiner)
[uIP 1.0](https://github.com/adamdunkels/uip) by [Adam Dunkels](https://github.com/adamdunkels)