Add reboot command and late terminal activation

2026-08-23 16:14:19 +02:00
parent f9d3e9ece5
commit 0dcc0d20d4
8 changed files with 86 additions and 2 deletions
@@ -70,6 +70,18 @@ The firmware starts an interactive console on UART0 with the prompt `serial-tool

 The console provides line editing, history for the current session, terminal-aware cursor movement, and Tab completion. ESP-IDF supplies completion for root commands; the project extends it to nested `debug`, `serial`, `broker`, `usb`, and `wifi` subcommands plus safe fixed values such as AP policy and serial framing. Password values are intentionally never completion candidates.

+ESP-IDF normally probes terminal cursor support once while constructing the UART REPL. If the board boots without a terminal attached, that probe times out and selects dumb mode. The DevKit's USB-to-UART bridge exposes no host-open signal that firmware can monitor, and entering enhanced mode before a terminal exists would block linenoise while it waits for a cursor-position response.
+
+The project therefore preserves safe dumb mode until the first real UART byte arrives. Attach picoterm, picocom, minicom, PuTTY, or another ANSI-capable terminal and press Enter once. That empty line is consumed by the basic reader and promotes the next prompt to enhanced mode, enabling history, Delete, cursor keys, and completion without rebooting. This detects terminal activity rather than electrical USB attachment; a genuinely non-ANSI terminal is not automatically distinguishable on this hardware profile.
+
+The root-level lifecycle command is:
+
+```text
+reboot
+```
+
+It acknowledges the request, waits briefly for UART output to drain, and calls the ESP-IDF software restart. RAM-only serial or Wi-Fi changes are lost unless they were persisted first with `serial save` or `wifi save`.
+
 ### Phase 1 serial service

 The `serial` command manages the working configuration and UART1 service: