[2.0.x] LPC1768: Fix: Serial pins disabled correctly when in use (#9193)

Marlin/src/HAL/HAL_LPC1768/HAL.h

@@ -65,9 +65,9 @@ extern "C" volatile uint32_t _millis;
 #include "HAL_timers.h"
 #include "HardwareSerial.h"
 
-#define ST7920_DELAY_1 DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP
+#define ST7920_DELAY_1 DELAY_20_NOP;DELAY_20_NOP;DELAY_20_NOP
-#define ST7920_DELAY_2 DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP
+#define ST7920_DELAY_2 DELAY_20_NOP;DELAY_20_NOP;DELAY_20_NOP;DELAY_10_NOP;DELAY_5_NOP
-#define ST7920_DELAY_3 DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP;DELAY_5_NOP
+#define ST7920_DELAY_3 DELAY_20_NOP;DELAY_20_NOP;DELAY_20_NOP;DELAY_10_NOP;DELAY_5_NOP
 
 extern HalSerial usb_serial;
 

Marlin/src/HAL/HAL_LPC1768/pinmapping.h

@@ -109,11 +109,11 @@ constexpr int8_t LPC1768_PIN_ADC(const pin_t pin) { return (int8_t)((pin >> 10)
 // ******************
 #define P_NC -1
 
-#if SERIAL_PORT != 3
+#if SERIAL_PORT != 3 && SERIAL_PORT_2 != 3
   #define P0_00 LPC1768_PIN(PORT(0), PIN( 0), INTERRUPT(1), PWM(0), ADC_NONE)
   #define P0_01 LPC1768_PIN(PORT(0), PIN( 1), INTERRUPT(1), PWM(0), ADC_NONE)
 #endif
-#if SERIAL_PORT != 0
+#if SERIAL_PORT != 0 && SERIAL_PORT_2 != 0
   #define P0_02 LPC1768_PIN(PORT(0), PIN( 2), INTERRUPT(1), PWM(0), ADC_CHAN(7))
   #define P0_03 LPC1768_PIN(PORT(0), PIN( 3), INTERRUPT(1), PWM(0), ADC_CHAN(6))
 #endif
@@ -123,11 +123,11 @@ constexpr int8_t LPC1768_PIN_ADC(const pin_t pin) { return (int8_t)((pin >> 10)
 #define P0_07   LPC1768_PIN(PORT(0), PIN( 7), INTERRUPT(1), PWM(0), ADC_NONE)
 #define P0_08   LPC1768_PIN(PORT(0), PIN( 8), INTERRUPT(1), PWM(0), ADC_NONE)
 #define P0_09   LPC1768_PIN(PORT(0), PIN( 9), INTERRUPT(1), PWM(0), ADC_NONE)
-#if SERIAL_PORT != 2
+#if SERIAL_PORT != 2 && SERIAL_PORT_2 != 2
   #define P0_10 LPC1768_PIN(PORT(0), PIN(10), INTERRUPT(1), PWM(0), ADC_NONE)
   #define P0_11 LPC1768_PIN(PORT(0), PIN(11), INTERRUPT(1), PWM(0), ADC_NONE)
 #endif
-#if SERIAL_PORT != 1
+#if SERIAL_PORT != 1 && SERIAL_PORT_2 != 1
   #define P0_15 LPC1768_PIN(PORT(0), PIN(15), INTERRUPT(1), PWM(0), ADC_NONE)
   #define P0_16 LPC1768_PIN(PORT(0), PIN(16), INTERRUPT(1), PWM(0), ADC_NONE)
 #endif
@@ -190,25 +190,25 @@ constexpr int8_t LPC1768_PIN_ADC(const pin_t pin) { return (int8_t)((pin >> 10)
 
 // Pin index for M43 and M226
 constexpr pin_t pin_map[] = {
-  #if SERIAL_PORT != 3
+  #if SERIAL_PORT != 3 && SERIAL_PORT_2 != 3
     P0_00, P0_01,
   #else
     P_NC,  P_NC,
   #endif
-  #if SERIAL_PORT != 0
+  #if SERIAL_PORT != 0 && SERIAL_PORT_2 != 0
                   P0_02, P0_03,
   #else
                   P_NC,  P_NC,
   #endif
                                 P0_04, P0_05, P0_06, P0_07,
     P0_08, P0_09,
-  #if SERIAL_PORT != 2
+  #if SERIAL_PORT != 2 && SERIAL_PORT_2 != 2
                   P0_10, P0_11,
   #else
                   P_NC,  P_NC,
   #endif
                                 P_NC,  P_NC,  P_NC,
-  #if SERIAL_PORT != 1
+  #if SERIAL_PORT != 1 && SERIAL_PORT_2 != 1
                                                      P0_15,
     P0_16,
   #else
@@ -243,7 +243,7 @@ constexpr uint8_t NUM_DIGITAL_PINS = COUNT(pin_map);
 
 constexpr pin_t adc_pin_table[] = {
   P0_23, P0_24, P0_25, P0_26, P1_30, P1_31,
-  #if SERIAL_PORT != 0
+  #if SERIAL_PORT != 0 && SERIAL_PORT_2 != 0
     P0_03, P0_02
   #endif
 };

Marlin/src/pins/pins_RAMPS_RE_ARM.h

@@ -195,6 +195,7 @@
     #define SPINDLE_DIR_PIN           P1_19   // (5)
   #endif
 #endif
+
 //
 // Průša i3 MK2 Multiplexer Support
 //