From c43ca39ec214705e059fed9d7290909161541dc6 Mon Sep 17 00:00:00 2001 From: Josh Schroeder Date: Wed, 4 Nov 2020 22:15:25 -0500 Subject: [PATCH] Wiring warning for ANET_FULL_GRAPHICS_LCD on SKR 1.4 (#20011) --- Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h | 22 +++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h b/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h index 2b8682aac7..2fcf42d9bb 100644 --- a/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h +++ b/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h @@ -234,7 +234,29 @@ */ #if HAS_WIRED_LCD #if ENABLED(ANET_FULL_GRAPHICS_LCD) + #error "CAUTION! ANET_FULL_GRAPHICS_LCD requires wiring modifications. See 'pins_BTT_SKR_V1_4.h' for details. Comment out this line to continue." + /** + * 1. Cut the tab off the LCD connector so it can be plugged into the "EXP1" connector the other way. + * 2. Swap the LCD's +5V (Pin2) and GND (Pin1) wires. (This is the critical part!) + * 3. Rewire the CLK Signal (LCD Pin9) to LCD Pin7. (LCD Pin9 remains open because this pin is open drain.) + * 4. A wire is needed to connect the Reset switch at J3 (LCD Pin7) to EXP2 (Pin3) on the board. + * + * !!! If you are unsure, ask for help! Your motherboard may be damaged in some circumstances !!! + * + * The ANET_FULL_GRAPHICS_LCD connector plug: + * + * BEFORE AFTER + * _____ _____ + * GND 1 | 1 2 | 2 5V 5V 1 | 1 2 | 2 GND + * CS 3 | 3 4 | 4 BTN_EN2 CS 3 | 3 4 | 4 BTN_EN2 + * SID 5 | 5 6 6 BTN_EN1 SID 5 | 5 6 6 BTN_EN1 + * open 7 | 7 8 | 8 BTN_ENC CLK 7 | 7 8 | 8 BTN_ENC + * CLK 9 | 9 10| 10 Beeper open 9 | 9 10| 10 Beeper + * ----- ----- + * LCD LCD + */ + #define LCD_PINS_RS P1_23 #define BTN_EN1 P1_20