DWIN LCD pins for BTT SKR Mini V1.0, V1.2 and V2.0

Also changed default LCD UART port for BTT SKR E3 TURBO
MarlinFirmware · Jul 5, 2021 · e5825a0 · e5825a0
1 parent 03a4697
commit e5825a0
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Showing 3 changed files with 27 additions and 3 deletions.
diff --git a/Marlin/src/inc/Conditionals_LCD.h b/Marlin/src/inc/Conditionals_LCD.h
@@ -1078,7 +1078,11 @@
 #if ENABLED(DWIN_CREALITY_LCD)
   #define SERIAL_CATCHALL 0
   #ifndef LCD_SERIAL_PORT
-    #define LCD_SERIAL_PORT 3 // Creality 4.x board
+    #if MB(BTT_SKR_MINI_E3_V1_0, BTT_SKR_MINI_E3_V1_2, BTT_SKR_MINI_E3_V2_0, BTT_SKR_E3_TURBO)
+      #define LCD_SERIAL_PORT 1
+    #else
+      #define LCD_SERIAL_PORT 3 // Creality 4.x board
+    #endif
   #endif
 #endif
 

diff --git a/Marlin/src/pins/lpc1769/pins_BTT_SKR_E3_TURBO.h b/Marlin/src/pins/lpc1769/pins_BTT_SKR_E3_TURBO.h
@@ -202,7 +202,7 @@
 #define EXP1_10_PIN                        P2_08
 
 #if ENABLED(DWIN_CREALITY_LCD)
-  #error "DWIN_CREALITY_LCD requires a custom cable with TX = P0_15, RX = P0_16, and LCD_SERIAL_PORT 1. Comment out this line to continue."
+  #error "DWIN_CREALITY_LCD requires a custom cable with TX = P0_15, RX = P0_16. Comment out this line to continue."
 
   #define BEEPER_PIN                 EXP1_10_PIN
   #define BTN_EN1                    EXP1_03_PIN

diff --git a/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_E3_common.h b/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_E3_common.h
@@ -134,7 +134,27 @@
   #define EXP1_3                            PB7
 #endif
 
-#if HAS_WIRED_LCD
+#if ENABLED(DWIN_CREALITY_LCD)
+  /**
+   *        -----              ------              ------
+   *   VCC | 1 2 | GND    VCC | 1 2 | GND    GND  | 2  1 | VCC
+   *     A | 3 4 | B        A | 3 4 | B        B  | 4  3 | A
+   *       | 5 6   TX    BEEP | 5 6   ENT    ENT |  6  5 | BEEP
+   *       | 7 8 | RX      TX | 7 8 | RX      RX  | 8  7 | TX
+   *  BEEP | 9 10| ENT        | 9 10|             | 10 9 |
+   *        -----              ------              ------
+   *        EXP1               DWIN                DWIN (plug)
+   *
+   * All pins are labeled as printed on DWIN PCB. Connect TX-TX, A-A and so on.
+   */
+
+  #error "DWIN_CREALITY_LCD requires a custom cable, see diagram above this line. Comment out this line to continue."
+
+  #define BEEPER_PIN              EXP1_9
+  #define BTN_EN1                 EXP1_3
+  #define BTN_EN2                 PB8
+  #define BTN_ENC                 PB5
+#elif HAS_WIRED_LCD
 
   #if ENABLED(CR10_STOCKDISPLAY)