Lerdge K EEPROM and TFT (#21812)

Co-authored-by: Scott Lahteine <github@thinkyhead.com>

.github/workflows/test-builds.yml

@@ -80,6 +80,7 @@ jobs:
         - mks_robin_pro
         - STM32F103RET6_creality
         - LERDGEX
+        - LERDGEK
         - mks_robin_nano35
 
         # Put lengthy tests last

Marlin/src/HAL/shared/eeprom_if_i2c.cpp

@@ -30,11 +30,17 @@
 #if ENABLED(I2C_EEPROM)
 
 #include "eeprom_if.h"
+
+#if ENABLED(SOFT_I2C_EEPROM)
+  #include <SlowSoftWire.h>
+  SlowSoftWire Wire = SlowSoftWire(I2C_SDA_PIN, I2C_SCL_PIN, true);
+#else
   #include <Wire.h>
+#endif
 
 void eeprom_init() {
   Wire.begin(
-    #if PINS_EXIST(I2C_SCL, I2C_SDA)
+    #if PINS_EXIST(I2C_SCL, I2C_SDA) && DISABLED(SOFT_I2C_EEPROM)
       uint8_t(I2C_SDA_PIN), uint8_t(I2C_SCL_PIN)
     #endif
   );

Marlin/src/lcd/tft_io/st7796s.h

@@ -154,6 +154,9 @@ static const uint16_t st7796s_init[] = {
 
 static const uint16_t lerdge_st7796s_init[] = {
   DATASIZE_8BIT,
+  ESC_REG(ST7796S_SWRESET), ESC_DELAY(100),
+  ESC_REG(ST7796S_SLPOUT), ESC_DELAY(20),
+
   ESC_REG(ST7796S_CSCON), 0x00C3,  // enable command 2 part I
   ESC_REG(ST7796S_CSCON), 0x0096,  // enable command 2 part II
 
@@ -165,7 +168,6 @@ static const uint16_t lerdge_st7796s_init[] = {
 
   ESC_REG(ST7796S_PWR2), 0x0015,
   ESC_REG(ST7796S_PWR3), 0x00AF,
-  ESC_REG(0xC3), 0x0009,       // Register not documented in datasheet
   ESC_REG(ST7796S_VCMPCTL), 0x0022,
   ESC_REG(ST7796S_VCMOST), 0x0000,
   ESC_REG(ST7796S_DOCA), 0x0040, 0x008A, 0x0000, 0x0000, 0x0029, 0x0019, 0x00A5, 0x0033,

Marlin/src/pins/stm32f4/pins_LERDGE_K.h

@@ -28,7 +28,14 @@
 #define BOARD_INFO_NAME      "Lerdge K"
 #define DEFAULT_MACHINE_NAME "LERDGE"
 
+// EEPROM
+#if NO_EEPROM_SELECTED
   #define I2C_EEPROM
+  #define SOFT_I2C_EEPROM                         // Force the use of Software I2C
+  #define I2C_SCL_PIN                       PG14
+  #define I2C_SDA_PIN                       PG13
+  #define MARLIN_EEPROM_SIZE             0x10000
+#endif
 
 // USB Flash Drive support
 #define HAS_OTG_USB_HOST_SUPPORT
@@ -36,7 +43,7 @@
 //
 // Servos
 //
-//#define SERVO0_PIN                        PB11
+#define SERVO0_PIN                          PB11
 
 //
 // Limit Switches
@@ -96,6 +103,13 @@
 //  #define E1_CS_PIN                       PE4
 //#endif
 
+//#define E2_STEP_PIN                       PF4  // best guess
+//#define E2_DIR_PIN                        PF3  // best guess
+//#define E2_ENABLE_PIN                     PF5  // best guess
+//#ifndef E2_CS_PIN
+//  #define E2_CS_PIN                       PB2  // best guess
+//#endif
+
 #if HAS_TMC_UART
   /**
    * TMC2208/TMC2209 stepper drivers
@@ -163,13 +177,19 @@
 #ifndef FAN_PIN
   #define FAN_PIN                           PF7
 #endif
+
 #define FAN1_PIN                            PF6
-#define FAN2_PIN                            PF8
 
 #ifndef E0_AUTO_FAN_PIN
-  #define E0_AUTO_FAN_PIN                   PF6
+  #define E0_AUTO_FAN_PIN                   PB1
 #endif
 
+#ifndef E1_AUTO_FAN_PIN
+  #define E1_AUTO_FAN_PIN                   PB0
+#endif
+
+#define CONTROLLER_FAN_PIN                  PF8
+
 //
 // LED / Lighting
 //
@@ -177,10 +197,10 @@
 //#define CASE_LIGHT_PIN_DO                 -1
 //#define NEOPIXEL_PIN                      -1
 #ifndef RGB_LED_R_PIN
-  #define RGB_LED_R_PIN                     PB7
+  #define RGB_LED_R_PIN                     PB8   // swap R and G pin for compatibility with real wires
 #endif
 #ifndef RGB_LED_G_PIN
-  #define RGB_LED_G_PIN                     PB8
+  #define RGB_LED_G_PIN                     PB7
 #endif
 #ifndef RGB_LED_B_PIN
   #define RGB_LED_B_PIN                     PB9
@@ -197,7 +217,7 @@
 //
 #define SDSS                                PC11
 #define LED_PIN                             PA15  // Alive
-#define PS_ON_PIN                           -1
+#define PS_ON_PIN                           PA4
 #define KILL_PIN                            -1
 #define POWER_LOSS_PIN                      PA4   // Power-loss / nAC_FAULT
 
@@ -213,6 +233,9 @@
 // LCD / Controller
 //
 
+#if HAS_FSMC_TFT
+  //#define TFT_DRIVER             LERDGE_ST7796
+
   #define TFT_RESET_PIN                     PD6
   #define TFT_BACKLIGHT_PIN                 PD3
 
@@ -223,7 +246,10 @@
   #define TOUCH_SCK_PIN                     PB3
   #define TOUCH_MOSI_PIN                    PB5
   #define TOUCH_MISO_PIN                    PB4
+#endif
 
+#if IS_NEWPANEL
   #define BTN_EN1                           PG10
   #define BTN_EN2                           PG11
   #define BTN_ENC                           PG9
+#endif

buildroot/tests/LERDGEK

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+#
+# Build tests for LERDGEK environment
+#
+
+# exit on first failure
+set -e
+
+#
+# Build with the typical configuration
+#
+restore_configs
+opt_set MOTHERBOARD BOARD_LERDGE_K SERIAL_PORT 1
+opt_enable TFT_GENERIC TFT_INTERFACE_FSMC TFT_COLOR_UI
+exec_test $1 $2 "LERDGE K with Generic FSMC TFT with ColorUI" "$3"
+
+# clean up
+restore_configs

ini/features.ini

@@ -41,6 +41,7 @@ HAS_(FSMC|SPI|LTDC)_TFT                = src_filter=+<src/HAL/STM32/tft> +<src/H
 HAS_FSMC_TFT                           = src_filter=+<src/HAL/STM32/tft/tft_fsmc.cpp> +<src/HAL/STM32F1/tft/tft_fsmc.cpp>
 HAS_SPI_TFT                            = src_filter=+<src/HAL/STM32/tft/tft_spi.cpp> +<src/HAL/STM32F1/tft/tft_spi.cpp>
 I2C_EEPROM                             = src_filter=+<src/HAL/shared/eeprom_if_i2c.cpp>
+SOFT_I2C_EEPROM                        = SlowSoftI2CMaster, SlowSoftWire=https://github.com/felias-fogg/SlowSoftWire/archive/master.zip
 SPI_EEPROM                             = src_filter=+<src/HAL/shared/eeprom_if_spi.cpp>
 HAS_GRAPHICAL_TFT                      = src_filter=+<src/lcd/tft>
 DWIN_CREALITY_LCD                      = src_filter=+<src/lcd/dwin>

ini/stm32f4.ini

@@ -308,8 +308,7 @@ build_flags       = ${stm_flash_drive.build_flags}
 platform             = ${lerdge_common.platform}
 extends              = lerdge_common
 board_build.firmware = Lerdge_K_firmware_force.bin
-build_flags          = ${lerdge_common.build_flags}
-  -DLERDGEK
+build_flags          = ${lerdge_common.build_flags} -DLERDGEK
 
 #
 # Lerdge K with USB Flash Drive Support