From 980176ecc71cb7d52f817fbd7eec66625a63ffbd Mon Sep 17 00:00:00 2001 From: ScottW514 Date: Mon, 3 Aug 2026 17:38:26 -0400 Subject: [PATCH] BRINGUP: homing timing from mid-bed; status-silence and TCP stale-session notes --- docs/BRINGUP.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/docs/BRINGUP.md b/docs/BRINGUP.md index d5f0b96..327e0df 100644 --- a/docs/BRINGUP.md +++ b/docs/BRINGUP.md @@ -483,6 +483,14 @@ at live snapshots). contacts 20-47k vs thresholds 6.5-20k), ending at machine 0,0 with both axes flagged homed; jogs return to exact zero.** Z excluded ($H never moves Z; hall-supervised Z homing is a later item). + **$H from mid-bed measures 97.8 s** at the default rates — almost + entirely the F300 seek creep (X 247 mm ≈ 50 s + Y 139 mm ≈ 28 s + + ~10 s/axis latch); raise $25 to shorten once higher-speed contact + is validated. Note: status polls (`?`) go unanswered for long + stretches during homing (senders must tolerate the silence). + OPEN (headless robustness): a killed TCP client wedges the + single-connection port until the server tries a write — a new + connection should displace a dead session (serial.c). Spike record (tools `scripts/bench/accel_fast.py`, `bump_seek.py`; machine driven via grblHAL TCP jogs + 0x85 cancel): - **Sensors**: three lis2hh12 bind via mainline st_accel. The HEAD