Steno BLE timeout 50->250ms: round trip spans 2-4 conn intervals

Shift 8KB dict weight right: bootloader app ceiling is 0xEA000
Debug: logging snippet on left
2026-07-03 16:19:28 +08:00 · 2026-07-03 16:07:53 +08:00 · 2026-07-03 15:51:06 +08:00 · 2026-07-03 03:37:28 +00:00 · 2026-07-03 11:26:25 +08:00 · 2026-07-03 11:02:58 +08:00
6 changed files with 131 additions and 35 deletions
--- a/build.yaml
+++ b/build.yaml
@ -4,6 +4,7 @@ include:
  ### CORNE START ###
  - board: nice_nano_v2
    shield: corne_left nice_oled
+    snippet: zmk-usb-logging
    artifact-name: nice_corne_left_oled_rgb
  - board: nice_nano_v2
    shield: corne_right nice_oled
--- a/config/corne.conf
+++ b/config/corne.conf
@ -117,6 +117,14 @@ CONFIG_ZMK_KSCAN_DEBOUNCE_RELEASE_MS=5
 # ref: https://zmk.dev/docs/config/system#hid
 CONFIG_ZMK_HID_CONSUMER_REPORT_USAGES_BASIC=y

+### STENO ENGINE (v4 union split-section: both dicts, both halves)
+CONFIG_STENO_ENGINE=y
+CONFIG_STENO_DICT_BOTH=y
+CONFIG_STENO_SPLIT_DICT=y
+CONFIG_STENO_DICT_LEFT_MAX_SIZE=440320
+CONFIG_STENO_DICT_RIGHT_MAX_SIZE=519168
+CONFIG_STENO_SPLIT_TIMEOUT_MS=250
+
 ### DEBUG OPTIONS
 # CONFIG_ZMK_USB_LOGGING=y
 # CONFIG_LOG_PROCESS_THREAD_STARTUP_DELAY_MS=8000
--- a/config/corne.keymap
+++ b/config/corne.keymap
@ -13,6 +13,8 @@
 #include <dt-bindings/zmk/backlight.h>
 #include <dt-bindings/zmk/rgb.h>
 #include <dt-bindings/zmk/reset.h>
+#include <behaviors/steno_engine.dtsi>
+#include <dt-bindings/zmk/steno_keys.h>
 #include <dt-bindings/zmk/rgb_colors.h>

 &led_strip {
@ -199,10 +201,10 @@
        steno_layer {
            display-name = "STEN";
            bindings = <
+&steno STENO_NUM &steno STENO_SL &steno STENO_TL &steno STENO_PL &steno STENO_HL &steno STENO_STAR      &steno STENO_STAR &steno STENO_FR &steno STENO_PR &steno STENO_LR &steno STENO_TR &steno STENO_DR
+&mo 4            &steno STENO_SL &steno STENO_KL &steno STENO_WL &steno STENO_RL &steno STENO_STAR      &steno STENO_STAR &steno STENO_RR &steno STENO_BR &steno STENO_GR &steno STENO_SR &steno STENO_ZR
 &none            &none           &none           &none           &none           &none                  &none             &none           &none           &none           &none           &to 4
-&mo 4   &none  &none  &none  &none  &none      &none  &none  &none  &none  &none  &none
-&none   &none  &none  &none  &none  &none      &none  &none  &none  &none  &none  &none
-                       &none  &none  &none      &none  &none  &none
+                                                 &none           &steno STENO_A  &steno STENO_O         &steno STENO_E    &steno STENO_U  &none
            >;
        };

--- a/config/west.yml
+++ b/config/west.yml
@ -24,6 +24,10 @@ manifest:
    - name: zmk-rgb-effects
      remote: afiqzudinhadi-zmk
      revision: v1.1.1
+    # Steno engine module (split-dict partition)
+    - name: zmk-steno-engine
+      remote: afiqzudinhadi-zmk
+      revision: split-combined
    # dongle_display
    - name: zmk-dongle-display
      remote: englmaxi
--- a/keymap-drawer/corne.svg
+++ b/keymap-drawer/corne.svg
@ -749,42 +749,75 @@ rect.held, rect.combo.held {
 <g transform="translate(0, 56)">
 <g transform="translate(28, 49)" class="key keypos-0">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 67%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 67%">STENO_NUM</tspan>
+</text>
 </g>
 <g transform="translate(84, 49)" class="key keypos-1">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_SL</tspan>
+</text>
 </g>
 <g transform="translate(140, 35)" class="key keypos-2">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_TL</tspan>
+</text>
 </g>
 <g transform="translate(196, 28)" class="key keypos-3">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_PL</tspan>
+</text>
 </g>
 <g transform="translate(252, 35)" class="key keypos-4">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_HL</tspan>
+</text>
 </g>
 <g transform="translate(308, 42)" class="key keypos-5">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 60%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 60%">STENO_STAR</tspan>
+</text>
 </g>
 <g transform="translate(532, 42)" class="key keypos-6">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 60%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 60%">STENO_STAR</tspan>
+</text>
 </g>
 <g transform="translate(588, 35)" class="key keypos-7">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_FR</tspan>
+</text>
 </g>
 <g transform="translate(644, 28)" class="key keypos-8">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_PR</tspan>
+</text>
 </g>
 <g transform="translate(700, 35)" class="key keypos-9">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_LR</tspan>
+</text>
 </g>
 <g transform="translate(756, 49)" class="key keypos-10">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_TR</tspan>
+</text>
 </g>
 <g transform="translate(812, 49)" class="key keypos-11">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
-<a href="#HUB">
-<text x="0" y="0" class="key tap layer-activator">HUB</text>
-</a><text x="0" y="24" class="key hold">toggle</text>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_DR</tspan>
+</text>
 </g>
 <g transform="translate(28, 105)" class="key keypos-12">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
@ -793,36 +826,69 @@ rect.held, rect.combo.held {
 </a></g>
 <g transform="translate(84, 105)" class="key keypos-13">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_SL</tspan>
+</text>
 </g>
 <g transform="translate(140, 91)" class="key keypos-14">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_KL</tspan>
+</text>
 </g>
 <g transform="translate(196, 84)" class="key keypos-15">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_WL</tspan>
+</text>
 </g>
 <g transform="translate(252, 91)" class="key keypos-16">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_RL</tspan>
+</text>
 </g>
 <g transform="translate(308, 98)" class="key keypos-17">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 60%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 60%">STENO_STAR</tspan>
+</text>
 </g>
 <g transform="translate(532, 98)" class="key keypos-18">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 60%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 60%">STENO_STAR</tspan>
+</text>
 </g>
 <g transform="translate(588, 91)" class="key keypos-19">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_RR</tspan>
+</text>
 </g>
 <g transform="translate(644, 84)" class="key keypos-20">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_BR</tspan>
+</text>
 </g>
 <g transform="translate(700, 91)" class="key keypos-21">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_GR</tspan>
+</text>
 </g>
 <g transform="translate(756, 105)" class="key keypos-22">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_SR</tspan>
+</text>
 </g>
 <g transform="translate(812, 105)" class="key keypos-23">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 75%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 75%">STENO_ZR</tspan>
+</text>
 </g>
 <g transform="translate(28, 161)" class="key keypos-24">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
@ -859,21 +925,36 @@ rect.held, rect.combo.held {
 </g>
 <g transform="translate(812, 161)" class="key keypos-35">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<a href="#HUB">
+<text x="0" y="0" class="key tap layer-activator">HUB</text>
+</a><text x="0" y="24" class="key hold">toggle</text>
 </g>
 <g transform="translate(224, 205)" class="key keypos-36">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
 </g>
 <g transform="translate(286, 213) rotate(15.0)" class="key keypos-37">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 86%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 86%">STENO_A</tspan>
+</text>
 </g>
 <g transform="translate(351, 224) rotate(30.0)" class="key keypos-38">
 <rect rx="6" ry="6" x="-26" y="-40" width="52" height="80" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 86%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 86%">STENO_O</tspan>
+</text>
 </g>
 <g transform="translate(489, 224) rotate(-30.0)" class="key keypos-39">
 <rect rx="6" ry="6" x="-26" y="-40" width="52" height="80" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 86%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 86%">STENO_E</tspan>
+</text>
 </g>
 <g transform="translate(554, 213) rotate(-15.0)" class="key keypos-40">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
+<text x="0" y="0" class="key tap">
+<tspan x="0" dy="-0.6em" style="font-size: 86%">&amp;steno</tspan><tspan x="0" dy="1.2em" style="font-size: 86%">STENO_U</tspan>
+</text>
 </g>
 <g transform="translate(616, 205)" class="key keypos-41">
 <rect rx="6" ry="6" x="-26" y="-26" width="52" height="52" class="key"/>
--- a/keymap-drawer/corne.yaml
+++ b/keymap-drawer/corne.yaml
@ -87,6 +87,30 @@ layers:
  - $$mdi:apple-keyboard-option$$
  - {t: MUTE, h: PLAY PAUSE}
  STEN:
+  - '&steno STENO_NUM'
+  - '&steno STENO_SL'
+  - '&steno STENO_TL'
+  - '&steno STENO_PL'
+  - '&steno STENO_HL'
+  - '&steno STENO_STAR'
+  - '&steno STENO_STAR'
+  - '&steno STENO_FR'
+  - '&steno STENO_PR'
+  - '&steno STENO_LR'
+  - '&steno STENO_TR'
+  - '&steno STENO_DR'
+  - HUB
+  - '&steno STENO_SL'
+  - '&steno STENO_KL'
+  - '&steno STENO_WL'
+  - '&steno STENO_RL'
+  - '&steno STENO_STAR'
+  - '&steno STENO_STAR'
+  - '&steno STENO_RR'
+  - '&steno STENO_BR'
+  - '&steno STENO_GR'
+  - '&steno STENO_SR'
+  - '&steno STENO_ZR'
  - ''
  - ''
  - ''
@ -99,35 +123,11 @@ layers:
  - ''
  - ''
  - {t: HUB, h: toggle}
-  - HUB
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
-  - ''
  - ''
+  - '&steno STENO_A'
+  - '&steno STENO_O'
+  - '&steno STENO_E'
+  - '&steno STENO_U'
  - ''
  FPS:
  - {t: '1', h: Esc}
Author	SHA1	Message	Date
afiqzudinhadi	ec947a6452	Steno BLE timeout 50->250ms: round trip spans 2-4 conn intervals	2026-07-03 16:19:28 +08:00
afiqzudinhadi	297e414e5a	Shift 8KB dict weight right: bootloader app ceiling is 0xEA000	2026-07-03 16:07:53 +08:00
afiqzudinhadi	d1fda0f955	Debug: logging snippet on left	2026-07-03 15:51:06 +08:00
afiqzudinhadi	8cf31de9e1	Wire steno layer: standard steno layout on corne, tall-S both rows	2026-07-03 03:37:28 +00:00
afiqzudinhadi	1167984fc9	Restore build matrix after bootloader bisect (root cause: bootloader 0.6.0 corrupts large flashes)	2026-07-03 11:26:25 +08:00
afiqzudinhadi	0dc88b002b	Debug: bisect matrix for left-half boot crash	2026-07-03 11:02:58 +08:00
afiqzudinhadi	d50f4db658	Debug: zmk-usb-logging snippet on corne_left	2026-07-03 10:50:38 +08:00
afiqzudinhadi	d4a6c030c3	Debug: revert conf logging hacks (snippet instead)	2026-07-03 10:50:21 +08:00
afiqzudinhadi	100da2e3c1	Debug: USB logging needs CONFIG_SERIAL	2026-07-03 10:47:34 +08:00
afiqzudinhadi	5d8a49044d	Debug: enable USB logging	2026-07-03 10:42:49 +08:00
afiqzudinhadi	c9b4f12449	Steno v4: both dicts, rebalanced budgets (left 430KB, right 499KB)	2026-07-03 01:35:35 +08:00
afiqzudinhadi	7113237511	Enable steno engine with right-heavy split-dict partition	2026-07-02 15:19:02 +08:00
afiqzudinhadi	3fd9bc6dbe	Add zmk-steno-engine module (split-combined branch)	2026-07-02 15:02:10 +08:00