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| author | info@mode42.com <info@mode42.com> | 2026-08-07 18:25:13 +0000 |
|---|---|---|
| committer | info@mode42.com <info@mode42.com> | 2026-08-07 18:25:13 +0000 |
| commit | 04d965d67a7264a1c7c211494aebda1953df7603 (patch) | |
| tree | 0ebd700a6e219f84a26a656f4bee8778bc75da7b /docs/DEV/TMODEM-C1224.md | |
Initial push
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| -rw-r--r-- | docs/DEV/TMODEM-C1224.md | 40 |
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diff --git a/docs/DEV/TMODEM-C1224.md b/docs/DEV/TMODEM-C1224.md new file mode 100644 index 0000000..6b40968 --- /dev/null +++ b/docs/DEV/TMODEM-C1224.md @@ -0,0 +1,40 @@ +# T-Modem-c1224 — max25d device (`tmodem`) + +**AS-IS** · prototype · English only. + +## Role + +[T-Modem-c1224](https://github.com/ngteq/T-Modem-c1224) Pico firmware presents **USB CDC KISS** (half-TNC: HDLC on Pico, AFSK on TCM3105-class chip). max25d talks **raw KISS** on `/dev/ttyACM*` — same family as `kiss-raw-serial` / `baycom-kiss` serial path, but **not** BayCom/based and **not** SER12. + +## Enable + +```ini +[features] +tmodem = yes + +[devices] +default = tmodem +tmodem = /dev/ttyACM0 + +[serial.tmodem] +baud = 115200 +line = 8n1 +dtr_rts = no +``` + +Example file: `share/max25/max25d.tmodem.ini.example`. + +## Terminal + +```bash +max25-terminal -d tmodem +# or SET DEVICE tmodem after connect +``` + +## RX before TX + +Any on-air smoke: prove RX (noise / Soft-DCD / decode) before live TX. See `scripts/tx-rx-test.sh` and vault §0.20. + +## HyBBX + +Attach-only via a running max25d with `tmodem` enabled. No T-Modem L1 inside HyBBX. |