feat: drop the hold-both-footswitches DFU gesture

CHANGELOG.md

@@ -5,6 +5,9 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); this pr
 uses [Semantic Versioning](https://semver.org/) (`vMAJOR.MINOR.PATCH`).
 
 ## [Unreleased]
+- **Removed the "hold both footswitches → DFU" gesture.** Enter DFU for flashing over MIDI
+  (CC 119 ≥ 64, e.g. from Propagator) or with the Daisy Seed's BOOT+RESET buttons. Frees the
+  footswitch combinations for upcoming features (e.g. presets).
 - **Lower audio-CPU on the voice path** (no audible change): the per-voice filter only
   recomputes its coefficients when cutoff / resonance / filter-type actually change, so
   static-filter patches skip a `sinf`+`powf` (Svf) or coefficient polynomial (Moog) every

README.md

@@ -43,7 +43,9 @@ Spore currently targets one platform:
 | **Footsw 1** | **Tap** = engage/bypass · **Hold** = edit FX (knobs become FX controls) |
 | **Footsw 2** | Mode action - Granular **freeze**, Generative **re-seed** |
 | **LED 1 / 2**| Engaged state (mid = editing FX) / active FX |
-| Hold **both** footswitches 2s | Reboot to **DFU** for flashing |
+
+Enter DFU for flashing over MIDI (**CC 119** ≥ 64, e.g. from Propagator) or with the Daisy
+Seed's **BOOT + RESET** buttons.
 
 Audio: Hothouse stereo **in** and **out** (1/4" jacks). Synth & Generative ignore the
 input (they generate); Granular records and reuses it.

scripts/flash.ps1

@@ -1,6 +1,6 @@
 # Build + flash over USB DFU (no programmer needed).
 # Put the device in the bootloader first: hold BOOT, tap RESET
-# (or hold BOTH footswitches for 2s to trigger the DFU reboot gesture).
+# (or send MIDI CC 119 >= 64 from the editor to reboot into DFU).
 $ErrorActionPreference = "Stop"
 . (Join-Path $PSScriptRoot "env.ps1")
 $root = Split-Path $PSScriptRoot -Parent

scripts/flash.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # Build + flash over USB DFU (no programmer needed).
 # Put the device in the bootloader first: hold BOOT, tap RESET
-# (or hold BOTH footswitches for 2s to trigger the DFU reboot gesture).
+# (or send MIDI CC 119 >= 64 from the editor to reboot into DFU).
 set -euo pipefail
 . "$(dirname "$0")/env.sh"
 cd "$(dirname "$0")/.."

src/config/params.h

@@ -20,7 +20,7 @@
 //                ... or FX params while editing (hold FOOTSW 1) -- see `params::fx`
 //    FOOTSW 1  : tap = engage/bypass | HOLD = edit FX (knobs -> FX, soft-takeover)
 //    FOOTSW 2  : mode action       (Granular = freeze, Generative = re-seed)
-//    (hold BOTH footswitches 2s  -> reboot to DFU for flashing)
+//    (DFU for flashing: MIDI CC 119 >= 64, or the Seed's BOOT+RESET buttons)
 // =============================================================================
 #pragma once
 

src/main.cpp

@@ -13,7 +13,7 @@
 //    TOGGLE 3 : FX    (UP=off    MIDDLE=delay      DOWN=reverb)
 //    FOOTSW 1 : tap = engage/bypass | HOLD = edit FX (knobs -> FX, soft-takeover)
 //    FOOTSW 2 : mode action (freeze / re-seed)
-//    Hold BOTH footswitches 2s -> reboot to DFU for flashing.
+//  Enter DFU for flashing over MIDI (CC 119 >= 64) or via the Seed's BOOT+RESET buttons.
 // =============================================================================
 #include "daisy_seed.h"
 #include "hothouse.h"
@@ -287,7 +287,7 @@ int main() {
     // (Motion IMU is tier-2 / deferred -- see io/imu.h.)
     g_sensors.Init(hw);  // re-inits ADC to add analog input on A0/D15
 
-    // Footswitch LEDs (pins 22/23 are free outside the DFU flash gesture).
+    // Footswitch LEDs.
     led1.Init(hw.seed.GetPin(Hothouse::LED_1), false);
     led2.Init(hw.seed.GetPin(Hothouse::LED_2), false);
 
@@ -318,7 +318,6 @@ int main() {
         led2.Update();
 
         hw.DelayMs(1);  // poll USB MIDI often so the RX FIFO never backs up (dropped notes)
-        hw.CheckResetToBootloader();
     }
     return 0;
 }