Fix charging bugs, remove disabling charging since its not supported in HW

source/ble_config.cpp

@@ -29,11 +29,10 @@ BLECharacteristic cfgGitHash   (0x1239);  // GitHash     R    8 bytes (7-char ha
 // Charge mode
 void applyChargeMode(ChargeMode mode) {
   switch (mode) {
-    case CHARGE_OFF:  pinMode(PIN_HICHG, INPUT_PULLUP);                          break;
+    case CHARGE_SLOW: pinMode(PIN_HICHG, INPUT);                                break;
-    case CHARGE_SLOW: pinMode(PIN_HICHG, OUTPUT); digitalWrite(PIN_HICHG, HIGH); break;
     case CHARGE_FAST: pinMode(PIN_HICHG, OUTPUT); digitalWrite(PIN_HICHG, LOW); break;
   }
-  const char* n[] = {"OFF (~0mA)", "SLOW (50mA)", "FAST (100mA)"};
+  const char* n[] = {"SLOW (50mA)", "FAST (100mA)"};
   Serial.print("[CHG] "); Serial.println(n[mode]);
 }
 
@@ -113,7 +112,7 @@ void onConfigBlobWrite(uint16_t h, BLECharacteristic* c, uint8_t* d, uint16_t l)
   cfg.accelStrength = b->accelStrength;
   if (b->curve     <= 2) cfg.curve = (CurveType)b->curve;
   cfg.axisFlip = b->axisFlip;
-  if (b->chargeMode <= 2) { cfg.chargeMode = (ChargeMode)b->chargeMode; applyChargeMode(cfg.chargeMode); }
+  if (b->chargeMode <= 1) { cfg.chargeMode = (ChargeMode)b->chargeMode; applyChargeMode(cfg.chargeMode); }
   #ifdef FEATURE_TAP_DETECTION
     if (b->tapThreshold >= 1 && b->tapThreshold <= 31) {
       cfg.tapThreshold = b->tapThreshold;

source/config.h

@@ -54,7 +54,7 @@
 
 // Persistence 
 #define CONFIG_FILENAME  "/imu_mouse_cfg.bin"
-#define CONFIG_MAGIC     0xDEAD123DUL
+#define CONFIG_MAGIC     0xDEAD123EUL
 
 // Physical button sentinel 
 #define BTN_PIN_NONE  0xFF   // Stored in btn*Pin when that button is disabled
@@ -69,7 +69,7 @@
 
 // Enums 
 enum CurveType   : uint8_t { CURVE_LINEAR=0, CURVE_SQUARE=1, CURVE_SQRT=2 };
-enum ChargeMode  : uint8_t { CHARGE_OFF=0,   CHARGE_SLOW=1,  CHARGE_FAST=2 };
+enum ChargeMode  : uint8_t { CHARGE_SLOW=0, CHARGE_FAST=1 };
 enum ChargeStatus: uint8_t { CHGSTAT_DISCHARGING=0, CHGSTAT_CHARGING=1, CHGSTAT_FULL=2 };
 
 // Tap action types 

web/app.js

@@ -16,7 +16,7 @@ const FLAG_AUTO_RECAL_ENABLED = 0x04;
 const FLAG_ALL_DEFAULT        = FLAG_TAP_ENABLED | FLAG_TEMP_COMP_ENABLED | FLAG_AUTO_RECAL_ENABLED;
 
 // Local shadow of the current config (kept in sync with device)
-const config = { sensitivity:600, deadZone:0.06, accelStrength:0.08, curve:0, axisFlip:0, chargeMode:1,
+const config = { sensitivity:600, deadZone:0.06, accelStrength:0.08, curve:0, axisFlip:0, chargeMode:0,
                  tapThreshold:12, tapAction:0, tapKey:0, tapMod:0, tapFreezeEnabled:1, jerkThreshold:2000,
                  featureFlags:FLAG_ALL_DEFAULT,
                  btnLeftPin:0xFF, btnRightPin:0xFF, btnMiddlePin:0xFF };
@@ -210,7 +210,7 @@ async function checkHashMatch() {
 // ConfigBlob read / write 
 // ConfigBlob layout (25 bytes LE):
 //  float sensitivity [0], float deadZone [4], float accelStrength [8]
-//  uint8 curve [12], uint8 axisFlip [13], uint8 chargeMode [14]
+//  uint8 curve [12], uint8 axisFlip [13], uint8 chargeMode [14] (0=SLOW 1=FAST)
 //  uint8 tapThreshold [15], uint8 tapAction [16], uint8 tapKey [17], uint8 tapMod [18], uint8 tapFreezeEnabled [19]
 //  float jerkThreshold [20], uint8 featureFlags [24]
 
@@ -384,15 +384,15 @@ function setChargeMode(val) {
   config.chargeMode = val;
   setChargeModeUI(val);
   writeConfigBlob();
-  log(`Charge → ${['OFF','SLOW 50mA','FAST 100mA'][val]}`,'warn');
+  log(`Charge → ${['SLOW 50mA','FAST 100mA'][val]}`,'warn');
 }
 function setChargeModeUI(val) {
-  [['chgOff','off'],['chgSlow','slow'],['chgFast','fast']].forEach(([id,cls],i) => {
+  [['chgSlow','slow'],['chgFast','fast']].forEach(([id,cls],i) => {
     const b = document.getElementById(id);
-    b.classList.remove('active','off','slow','fast');
+    b.classList.remove('active','slow','fast');
     if (i===val) b.classList.add('active', cls);
   });
-  document.getElementById('ciMode').textContent = ['Off (0mA)','50 mA','100 mA'][val] ?? '--';
+  document.getElementById('ciMode').textContent = ['50 mA','100 mA'][val] ?? '--';
 }
 
 function onCapTapChange(enabled) {

web/index.html

@@ -86,9 +86,8 @@
       <div class="param" style="border-bottom:none;padding:0">
         <div><div class="param-label">Charge Mode</div><div class="param-desc">BQ25100 ISET via P0.13 (HICHG)</div></div>
         <div class="segmented charge-seg" style="grid-column:2/4">
-          <button class="seg-btn off"  id="chgOff"  onclick="setChargeMode(0)" disabled>OFF</button>
+          <button class="seg-btn slow" id="chgSlow" onclick="setChargeMode(0)" disabled>SLOW · 50mA</button>
-          <button class="seg-btn slow" id="chgSlow" onclick="setChargeMode(1)" disabled>SLOW · 50mA</button>
+          <button class="seg-btn fast" id="chgFast" onclick="setChargeMode(1)" disabled>FAST · 100mA</button>
-          <button class="seg-btn fast" id="chgFast" onclick="setChargeMode(2)" disabled>FAST · 100mA</button>
         </div>
       </div>
       <div class="charge-info" id="chargeInfo">

web/style.css

@@ -199,7 +199,6 @@
   .seg-btn:last-child { border-right:none; }
   .seg-btn.active { background:var(--accent); color:var(--bg); font-weight:bold; }
   .seg-btn:disabled { cursor:not-allowed; opacity:0.35; }
-  .charge-seg .seg-btn.active.off  { background:var(--dim);    color:#fff; }
   .charge-seg .seg-btn.active.slow { background:var(--warn);   color:var(--bg); }
   .charge-seg .seg-btn.active.fast { background:var(--accent2);color:#fff; }