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Fix MKS_12864_OLED blank issue

Fixes #10071
Scott Lahteine 7 years ago
parent
commit
65ce0303f8
1 changed files with 9 additions and 6 deletions
  1. 9
    6
      Marlin/src/lcd/ultralcd_impl_DOGM.h

+ 9
- 6
Marlin/src/lcd/ultralcd_impl_DOGM.h View File

@@ -364,23 +364,26 @@ void lcd_printPGM_utf(const char *str, uint8_t n=LCD_WIDTH) {
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 // Initialize or re-initialize the LCD
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 static void lcd_implementation_init() {
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+  #if PIN_EXISTS(LCD_BACKLIGHT) // Enable LCD backlight
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+    OUT_WRITE(LCD_BACKLIGHT_PIN, HIGH);
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+  #endif
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+
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   #if ENABLED(MKS_12864OLED) || ENABLED(MKS_12864OLED_SSD1306)
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     SET_OUTPUT(LCD_PINS_DC);
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     OUT_WRITE(LCD_PINS_RS, LOW);
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-    delay(1000);
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+    _delay_ms(500);
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     WRITE(LCD_PINS_RS, HIGH);
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   #endif
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-  #if PIN_EXISTS(LCD_BACKLIGHT) // Enable LCD backlight
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-    OUT_WRITE(LCD_BACKLIGHT_PIN, HIGH);
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-  #endif
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-
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   #if PIN_EXISTS(LCD_RESET)
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     OUT_WRITE(LCD_RESET_PIN, LOW); // perform a clean hardware reset
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     _delay_ms(5);
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     OUT_WRITE(LCD_RESET_PIN, HIGH);
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     _delay_ms(5); // delay to allow the display to initalize
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-    u8g.begin(); // re-initialize the display
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+  #endif
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+
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+  #if PIN_EXISTS(LCD_RESET) || ENABLED(MKS_12864OLED) || ENABLED(MKS_12864OLED_SSD1306)
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+    u8g.begin();
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   #endif
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   #if DISABLED(MINIPANEL) // setContrast not working for Mini Panel

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