Ender3 - Marlin 2.1.2.4 build (#16)

2024-10-10 01:45:01 +02:00
parent 36f7ac4197
commit 229bde3d18
2868 changed files with 1663193 additions and 0 deletions
--- a/creality-ender3/Marlin-2.1.2.4/Marlin/src/feature/digipot/digipot_mcp4018.cpp
+++ b/creality-ender3/Marlin-2.1.2.4/Marlin/src/feature/digipot/digipot_mcp4018.cpp
@@ -0,0 +1,108 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(DIGIPOT_MCP4018)
+
+#include "digipot.h"
+
+#include <Stream.h>
+#include <SlowSoftI2CMaster.h>  // https://github.com/felias-fogg/SlowSoftI2CMaster
+
+// Settings for the I2C based DIGIPOT (MCP4018) based on WT150
+
+#ifndef DIGIPOT_A4988_Rsx
+  #define DIGIPOT_A4988_Rsx             0.250
+#endif
+#ifndef DIGIPOT_A4988_Vrefmax
+  #define DIGIPOT_A4988_Vrefmax         1.666
+#endif
+#define DIGIPOT_MCP4018_MAX_VALUE     127
+
+#define DIGIPOT_A4988_Itripmax(Vref)    ((Vref) / (8.0 * DIGIPOT_A4988_Rsx))
+
+#define DIGIPOT_A4988_FACTOR            ((DIGIPOT_MCP4018_MAX_VALUE) / DIGIPOT_A4988_Itripmax(DIGIPOT_A4988_Vrefmax))
+#define DIGIPOT_A4988_MAX_CURRENT       2.0
+
+static byte current_to_wiper(const float current) {
+  const int16_t value = TERN(DIGIPOT_USE_RAW_VALUES, current, CEIL(current * DIGIPOT_A4988_FACTOR));
+  return byte(constrain(value, 0, DIGIPOT_MCP4018_MAX_VALUE));
+}
+
+static SlowSoftI2CMaster pots[DIGIPOT_I2C_NUM_CHANNELS] = {
+  SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_X, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
+  #if DIGIPOT_I2C_NUM_CHANNELS > 1
+    , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_Y, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
+    #if DIGIPOT_I2C_NUM_CHANNELS > 2
+      , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_Z, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
+      #if DIGIPOT_I2C_NUM_CHANNELS > 3
+        , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E0, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
+        #if DIGIPOT_I2C_NUM_CHANNELS > 4
+          , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E1, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
+          #if DIGIPOT_I2C_NUM_CHANNELS > 5
+            , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E2, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
+            #if DIGIPOT_I2C_NUM_CHANNELS > 6
+              , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E3, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
+              #if DIGIPOT_I2C_NUM_CHANNELS > 7
+                , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E4, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
+              #endif
+            #endif
+          #endif
+        #endif
+      #endif
+    #endif
+  #endif
+};
+
+static void digipot_i2c_send(const uint8_t channel, const byte v) {
+  if (WITHIN(channel, 0, DIGIPOT_I2C_NUM_CHANNELS - 1)) {
+    pots[channel].i2c_start(((DIGIPOT_I2C_ADDRESS_A) << 1) | I2C_WRITE);
+    pots[channel].i2c_write(v);
+    pots[channel].i2c_stop();
+  }
+}
+
+// This is for the MCP4018 I2C based digipot
+void DigipotI2C::set_current(const uint8_t channel, const float current) {
+  const float ival = _MIN(_MAX(current, 0), float(DIGIPOT_MCP4018_MAX_VALUE));
+  digipot_i2c_send(channel, current_to_wiper(ival));
+}
+
+void DigipotI2C::init() {
+  for (uint8_t i = 0; i < DIGIPOT_I2C_NUM_CHANNELS; ++i) pots[i].i2c_init();
+
+  // Init currents according to Configuration_adv.h
+  static const float digipot_motor_current[] PROGMEM =
+    #if ENABLED(DIGIPOT_USE_RAW_VALUES)
+      DIGIPOT_MOTOR_CURRENT
+    #else
+      DIGIPOT_I2C_MOTOR_CURRENTS
+    #endif
+  ;
+  for (uint8_t i = 0; i < COUNT(digipot_motor_current); ++i)
+    set_current(i, pgm_read_float(&digipot_motor_current[i]));
+}
+
+DigipotI2C digipot_i2c;
+
+#endif // DIGIPOT_MCP4018