Marlin/src/lcd/extui/knutwurst/anycubic_touchscreen.cpp

@@ -78,7 +78,8 @@ static void sendLine_P(PGM_P str) {
 
 AnycubicMediaPrintState AnycubicTouchscreenClass::mediaPrintingState = AMPRINTSTATE_NOT_PRINTING;
 AnycubicMediaPauseState AnycubicTouchscreenClass::mediaPauseState    = AMPAUSESTATE_NOT_PAUSED;
-
+uint32_t AnycubicTouchscreenClass::time_last_cyclic_tft_command = 0;
+uint8_t AnycubicTouchscreenClass::delayed_tft_command = 0;
 
   #if ENABLED(POWER_OUTAGE_TEST)
 int           PowerInt                     = 6;
@@ -261,10 +262,13 @@ void AnycubicTouchscreenClass::ResumePrint() {
 
     // trigger the user message box
     DoFilamentRunoutCheck();
-
+    if ( millis() - time_last_cyclic_tft_command >= WAIT_MS_UNTIL_ACYCLIC_SEND ) {
       // re-enable the continue button
       SENDLINE_DBG_PGM("J18", "TFT Serial Debug: Resume Print with filament sensor still "
                               "tripped... J18");
+    }
+    else
+      delayed_tft_command = 18;
     return;
   }
     #endif
@@ -1011,8 +1015,12 @@ void AnycubicTouchscreenClass::DoFilamentRunoutCheck() {
       // play tone to indicate filament is out
       injectCommands(F("\nM300 P200 S1567\nM300 P200 S1174\nM300 P200 "
                        "S1567\nM300 P200 S1174\nM300 P2000 S1567"));
+      if ( millis() - time_last_cyclic_tft_command >= WAIT_MS_UNTIL_ACYCLIC_SEND ) {
         // tell the user that the filament has run out and wait
         SENDLINE_DBG_PGM("J23", "TFT Serial Debug: Blocking filament prompt... J23");
+      }
+      else
+        delayed_tft_command = 23;
     } else {
       SENDLINE_DBG_PGM("J15", "TFT Serial Debug: Non blocking filament runout... J15");
     }
@@ -1040,30 +1048,50 @@ void AnycubicTouchscreenClass::UserConfirmRequired(const char* const msg) {
   if (strcmp_P(msg, PSTR("Nozzle Parked")) == 0) {
     mediaPrintingState = AMPRINTSTATE_PAUSED;
     mediaPauseState    = AMPAUSESTATE_PARKED;
+    if ( millis() - time_last_cyclic_tft_command >= WAIT_MS_UNTIL_ACYCLIC_SEND ) {
       // enable continue button
       SENDLINE_DBG_PGM("J18", "TFT Serial Debug: UserConfirm SD print paused done... J18");
+    }
+    else
+      delayed_tft_command = 18;
   } else if (strcmp_P(msg, PSTR("Load Filament")) == 0) {
     mediaPrintingState = AMPRINTSTATE_PAUSED;
     mediaPauseState    = AMPAUSESTATE_FILAMENT_OUT;
+    if ( millis() - time_last_cyclic_tft_command >= WAIT_MS_UNTIL_ACYCLIC_SEND ) {
       // enable continue button
       SENDLINE_DBG_PGM("J18", "TFT Serial Debug: UserConfirm Filament is out... J18");
       SENDLINE_DBG_PGM("J23", "TFT Serial Debug: UserConfirm Blocking filament prompt... J23");
+    }
+    else
+      delayed_tft_command = 118;
   } else if (strcmp_P(msg, PSTR("Filament Purging...")) == 0) {
     mediaPrintingState = AMPRINTSTATE_PAUSED;
     mediaPauseState    = AMPAUSESTATE_FILAMENT_PURGING;
+    if ( millis() - time_last_cyclic_tft_command >= WAIT_MS_UNTIL_ACYCLIC_SEND ) {
       // enable continue button
       SENDLINE_DBG_PGM("J18", "TFT Serial Debug: UserConfirm Filament is purging... J18");
+    }
+    else
+      delayed_tft_command = 18;
   } else if (strcmp_P(msg, PSTR("HeaterTimeout")) == 0) {
     mediaPrintingState = AMPRINTSTATE_PAUSED;
     mediaPauseState    = AMPAUSESTATE_HEATER_TIMEOUT;
+    if ( millis() - time_last_cyclic_tft_command >= WAIT_MS_UNTIL_ACYCLIC_SEND ) {
       // enable continue button
       SENDLINE_DBG_PGM("J18", "TFT Serial Debug: UserConfirm SD Heater timeout... J18");
+    }
+    else
+      delayed_tft_command = 18;
   } else if (strcmp_P(msg, PSTR("Reheat finished.")) == 0) {
     mediaPrintingState = AMPRINTSTATE_PAUSED;
     mediaPauseState    = AMPAUSESTATE_REHEAT_FINISHED;
+    if ( millis() - time_last_cyclic_tft_command >= WAIT_MS_UNTIL_ACYCLIC_SEND ) {
       // enable continue button
       SENDLINE_DBG_PGM("J18", "TFT Serial Debug: UserConfirm SD Reheat done... J18");
     }
+    else
+      delayed_tft_command = 18;
+  }
   #endif
 }
 
@@ -1288,6 +1316,7 @@ void AnycubicTouchscreenClass::GetCommandFromTFT() {
                 } else {
                   SEND_PGM_VAL("A20V ", feedrate_percentage);
                   SENDLINE_PGM("");
+                  time_last_cyclic_tft_command = millis();
                 }
               }
               break;
@@ -2062,6 +2091,29 @@ void AnycubicTouchscreenClass::GetCommandFromTFT() {
       TFTbuflen  = (TFTbuflen - 1);
       TFTbufindr = (TFTbufindr + 1) % TFTBUFSIZE;
     }
+
+    // In case of too short time after last cyclic tft command it has to be
+    // wait to avoid missing action after acyclic command by the tft.
+    if ( (delayed_tft_command > 0) && ( millis() - time_last_cyclic_tft_command >= WAIT_MS_UNTIL_ACYCLIC_SEND ) ) {
+      switch (delayed_tft_command) {
+        case 23: {
+          SENDLINE_DBG_PGM("J23", "TFT Serial Debug: delayed J23");
+          delayed_tft_command = 0;
+          break;
+        }
+        case 18: {
+          SENDLINE_DBG_PGM("J18", "TFT Serial Debug: delayed J18");
+          delayed_tft_command = 0;
+          break;
+        }
+        case 118: {
+          SENDLINE_DBG_PGM("J23", "TFT Serial Debug: delayed J23");
+          SENDLINE_DBG_PGM("J18", "TFT Serial Debug: delayed J18");
+          delayed_tft_command = 0;
+          break;
+        }
+      }
+    }
   }
 
   void AnycubicTouchscreenClass::OnPrintTimerStarted() {

Marlin/src/lcd/extui/knutwurst/anycubic_touchscreen.h

@@ -138,6 +138,7 @@ enum AnycubicMediaPauseState {
   #define SM_BLTZ_EXIT_L     "<SAVE and EXIT>"
   #define SM_HS_DISABLE_L    "<Disable HiSpeed Mode>"
   #define SM_HS_ENABLE_L     "<Enable HiSpeed Mode>"
+  #define WAIT_MS_UNTIL_ACYCLIC_SEND 500
 #endif // !KNUTWURST_DGUS2_TFT
 
 #if ENABLED(KNUTWURST_DGUS2_TFT)
@@ -228,6 +229,8 @@ class AnycubicTouchscreenClass {
 
     static AnycubicMediaPrintState mediaPrintingState;
     static AnycubicMediaPauseState mediaPauseState;
+    static uint32_t time_last_cyclic_tft_command;
+    static uint8_t delayed_tft_command;
 
 #if defined(POWER_OUTAGE_TEST)
     struct OutageDataStruct {