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Wiring warning for ANET_FULL_GRAPHICS_LCD on SKR 1.4 (#20011)

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Josh Schroeder 2020-11-04 22:15:25 -05:00 committed by GitHub
parent 0407828027
commit c43ca39ec2
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22
Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h
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@ -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