Introduce FILAMENT_EJECTED + tune Eject operation + inc. MMU ver. 2.1.6

Firmware/mmu2/error_codes.h

@@ -54,6 +54,8 @@ enum class ErrorCode : uint_fast16_t {
     MOVE_IDLER_FAILED = MOVE_FAILED | TMC_IDLER_BIT, ///< E33033 the Idler was unable to move - unused at the time of creation, but added for completeness
     MOVE_PULLEY_FAILED = MOVE_FAILED | TMC_PULLEY_BIT, ///< E32841 the Pulley was unable to move - unused at the time of creation, but added for completeness
 
+    FILAMENT_EJECTED = 0x800c, ///< Filament was ejected, waiting for user input - technically, this is not an error
+
     LOAD_TO_EXTRUDER_FAILED = 0x802a, ///< E32811 internal error of the printer - try-load-unload sequence detected missing filament -> failed load into the nozzle
     QUEUE_FULL = 0x802b, ///< E32811 internal logic error - attempt to move with a full queue
     VERSION_MISMATCH = 0x802c, ///< E32812 internal error of the printer - incompatible version of the MMU FW

Firmware/mmu2/errors_list.h

@@ -72,6 +72,7 @@ typedef enum : uint16_t {
     ERR_SYSTEM_FW_UPDATE_NEEDED = 504,
     ERR_SYSTEM_FW_RUNTIME_ERROR = 505,
     ERR_SYSTEM_UNLOAD_MANUALLY = 506,
+    ERR_SYSTEM_FILAMENT_EJECTED = 507,
 
     ERR_OTHER = 900
 } err_num_t;
@@ -121,7 +122,8 @@ static const constexpr uint16_t errorCodes[] PROGMEM = {
     ERR_SYSTEM_QUEUE_FULL, 
     ERR_SYSTEM_FW_UPDATE_NEEDED, 
     ERR_SYSTEM_FW_RUNTIME_ERROR,
-    ERR_SYSTEM_UNLOAD_MANUALLY
+    ERR_SYSTEM_UNLOAD_MANUALLY,
+    ERR_SYSTEM_FILAMENT_EJECTED
 };
 
 // @@TODO some of the strings are duplicates, can be merged into one     01234567890123456789
@@ -164,6 +166,7 @@ static const char MSG_TITLE_QUEUE_FULL[] PROGMEM_I1              = ISTR("QUEUE F
 static const char MSG_TITLE_FW_UPDATE_NEEDED[] PROGMEM_I1        = ISTR("MMU FW UPDATE NEEDED"); ////MSG_TITLE_FW_UPDATE_NEEDED c=20
 static const char MSG_TITLE_FW_RUNTIME_ERROR[] PROGMEM_I1        = ISTR("FW RUNTIME ERROR"); ////MSG_TITLE_FW_RUNTIME_ERROR c=20
 static const char MSG_TITLE_UNLOAD_MANUALLY[] PROGMEM_I1         = ISTR("UNLOAD MANUALLY"); ////MSG_TITLE_UNLOAD_MANUALLY c=20
+static const char MSG_TITLE_FILAMENT_EJECTED[] PROGMEM_I1        = ISTR("FILAMENT EJECTED"); ////MSG_TITLE_FILAMENT_EJECTED c=20
 
 static const char * const errorTitles [] PROGMEM = {
     _R(MSG_TITLE_FINDA_DIDNT_TRIGGER),
@@ -206,7 +209,8 @@ static const char * const errorTitles [] PROGMEM = {
     _R(MSG_TITLE_QUEUE_FULL),
     _R(MSG_TITLE_FW_UPDATE_NEEDED),
     _R(MSG_TITLE_FW_RUNTIME_ERROR),
-    _R(MSG_TITLE_UNLOAD_MANUALLY)
+    _R(MSG_TITLE_UNLOAD_MANUALLY),
+    _R(MSG_TITLE_FILAMENT_EJECTED)
 };
 
 // @@TODO looking at the texts, they can be composed of several parts and/or parametrized (could save a lot of space ;) )
@@ -251,6 +255,7 @@ static const char MSG_DESC_QUEUE_FULL[] PROGMEM_I1 = ISTR("MMU Firmware internal
 static const char MSG_DESC_FW_UPDATE_NEEDED[] PROGMEM_I1 = ISTR("The MMU unit reports its FW version incompatible with the printer's firmware. Make sure the MMU firmware is up to date."); ////MSG_DESC_FW_UPDATE_NEEDED c=20 r=9
 static const char MSG_DESC_FW_RUNTIME_ERROR[] PROGMEM_I1 = ISTR("Internal runtime error. Try resetting the MMU unit or updating the firmware. If the issue persists, contact support."); ////MSG_DESC_FW_RUNTIME_ERROR c=20 r=11
 static const char MSG_DESC_UNLOAD_MANUALLY[] PROGMEM_I1 = ISTR("Filament detected unexpectedly. Ensure no filament is loaded. Check the sensors and wiring."); ////MSG_DESC_UNLOAD_MANUALLY c=20 r=8
+static const char MSG_DESC_FILAMENT_EJECTED[] PROGMEM_I1 = ISTR("Remove the ejected filament from the front of the MMU unit."); ////MSG_DESC_FILAMENT_EJECTED c=20 r=8
 
 static const char * const errorDescs[] PROGMEM = {
     _R(MSG_DESC_FINDA_DIDNT_TRIGGER),
@@ -293,7 +298,8 @@ static const char * const errorDescs[] PROGMEM = {
     _R(MSG_DESC_QUEUE_FULL),
     _R(MSG_DESC_FW_UPDATE_NEEDED),
     _R(MSG_DESC_FW_RUNTIME_ERROR),
-    _R(MSG_DESC_UNLOAD_MANUALLY)
+    _R(MSG_DESC_UNLOAD_MANUALLY),
+    _R(MSG_DESC_FILAMENT_EJECTED)
 };
 
 // we have max 3 buttons/operations to select from
@@ -375,6 +381,7 @@ static const uint8_t errorButtons[] PROGMEM = {
     Btns(ButtonOperations::DisableMMU, ButtonOperations::NoOperation),//FW_UPDATE_NEEDED
     Btns(ButtonOperations::RestartMMU, ButtonOperations::NoOperation),//FW_RUNTIME_ERROR
     Btns(ButtonOperations::Retry, ButtonOperations::NoOperation),//UNLOAD_MANUALLY
+    Btns(ButtonOperations::Continue, ButtonOperations::NoOperation),//FILAMENT_EJECTED
 };
 
 static_assert( sizeof(errorCodes) / sizeof(errorCodes[0]) == sizeof(errorDescs) / sizeof (errorDescs[0]));

Firmware/mmu2_error_converter.cpp

@@ -51,6 +51,8 @@ uint8_t PrusaErrorCodeIndex(uint16_t ec) {
         return FindErrorIndex(ERR_MECHANICAL_INSPECT_FINDA);
     case (uint16_t)ErrorCode::LOAD_TO_EXTRUDER_FAILED:
         return FindErrorIndex(ERR_MECHANICAL_LOAD_TO_EXTRUDER_FAILED);
+    case (uint16_t)ErrorCode::FILAMENT_EJECTED:
+        return FindErrorIndex(ERR_SYSTEM_FILAMENT_EJECTED);
 
     case (uint16_t)ErrorCode::STALLED_PULLEY:
     case (uint16_t)ErrorCode::MOVE_PULLEY_FAILED:
@@ -310,6 +312,15 @@ Buttons ButtonAvailable(uint16_t ec) {
             break;
         }
         break;
+    case ERR_SYSTEM_FILAMENT_EJECTED:
+        switch (buttonSelectedOperation) {
+        case ButtonOperations::Continue: // "Continue" - eject filament completed
+            return Middle;
+        default:
+            break;
+        }
+        break;
+
     default:
         break;
     }

Firmware/mmu2_protocol_logic.cpp

@@ -6,7 +6,7 @@
 
 namespace MMU2 {
 
-static const uint8_t supportedMmuFWVersion[3] PROGMEM = { 2, 1, 5 };
+static const uint8_t supportedMmuFWVersion[3] PROGMEM = { 2, 1, 6 };
 
 const uint8_t ProtocolLogic::regs8Addrs[ProtocolLogic::regs8Count] PROGMEM = {
     8, // FINDA state