Teensy 4.1 Ethernet support (#19801)

Marlin/Configuration.h

 
 /**
  * Select a secondary serial port on the board to use for communication with the host.
- * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
+ * Currently Ethernet (-2) is only supported on Teensy 4.1 boards.
+ * :[-2, -1, 0, 1, 2, 3, 4, 5, 6, 7]
  */
 //#define SERIAL_PORT_2 -1
 

Marlin/Configuration_adv.h

 #endif
 
 /**
+ * Ethernet. Use M552 to enable and set the IP address.
+ */
+#if HAS_ETHERNET
+  #define MAC_ADDRESS { 0xDE, 0xAD, 0xBE, 0xEF, 0xF0, 0x0D }  // A MAC address unique to your network
+#endif
+
+/**
  * WiFi Support (Espressif ESP32 WiFi)
  */
 //#define WIFISUPPORT         // Marlin embedded WiFi managenent

Marlin/src/HAL/TEENSY40_41/HAL.h

 #ifdef SERIAL_PORT_2
   #if SERIAL_PORT_2 == -1
     #define MYSERIAL1 usbSerial
+  #elif SERIAL_PORT_2 == -2
+    #define MYSERIAL1 ethernet.telnetClient
   #elif WITHIN(SERIAL_PORT_2, 0, 8)
     #define MYSERIAL1 MSERIAL(SERIAL_PORT_2)
   #else

Marlin/src/MarlinCore.cpp

   #include "lcd/dwin/e3v2/rotary_encoder.h"
 #endif
 
+#if HAS_ETHERNET
+  #include "feature/ethernet.h"
+#endif
+
 #if ENABLED(IIC_BL24CXX_EEPROM)
   #include "libs/BL24CXX.h"
 #endif
     HAL_idletask();
   #endif
 
+  // Check network connection
+  TERN_(HAS_ETHERNET, ethernet.check());
+
   // Handle Power-Loss Recovery
   #if ENABLED(POWER_LOSS_RECOVERY) && PIN_EXISTS(POWER_LOSS)
     if (printJobOngoing()) recovery.outage();
   MYSERIAL0.begin(BAUDRATE);
   uint32_t serial_connect_timeout = millis() + 1000UL;
   while (!MYSERIAL0 && PENDING(millis(), serial_connect_timeout)) { /*nada*/ }
-  #if HAS_MULTI_SERIAL
+  #if HAS_MULTI_SERIAL && !HAS_ETHERNET
     MYSERIAL1.begin(BAUDRATE);
     serial_connect_timeout = millis() + 1000UL;
     while (!MYSERIAL1 && PENDING(millis(), serial_connect_timeout)) { /*nada*/ }
   SETUP_RUN(settings.first_load());   // Load data from EEPROM if available (or use defaults)
                                       // This also updates variables in the planner, elsewhere
 
+  #if HAS_ETHERNET
+    SETUP_RUN(ethernet.init());
+  #endif
+
   #if HAS_TOUCH_XPT2046
     SETUP_RUN(touch.init());
   #endif

Marlin/src/core/serial.h

 
 #include "../inc/MarlinConfig.h"
 
+#if HAS_ETHERNET
+  #include "../feature/ethernet.h"
+#endif
+
 /**
  * Define debug bit-masks
  */
     #define SERIAL_OUT(WHAT, V...) (void)CAT(MYSERIAL,SERIAL_CATCHALL).WHAT(V)
   #else
     #define SERIAL_OUT(WHAT, V...) do{ \
-      if (!serial_port_index || serial_port_index == SERIAL_BOTH) (void)MYSERIAL0.WHAT(V); \
-      if ( serial_port_index) (void)MYSERIAL1.WHAT(V); \
+      const bool port2_open = TERN1(HAS_ETHERNET, ethernet.have_telnet_client); \
+      if ( serial_port_index == 0 || serial_port_index == SERIAL_BOTH)                (void)MYSERIAL0.WHAT(V); \
+      if ((serial_port_index == 1 || serial_port_index == SERIAL_BOTH) && port2_open) (void)MYSERIAL1.WHAT(V); \
     }while(0)
   #endif
 

Marlin/src/feature/ethernet.cpp

+/**
+ * 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/MarlinConfigPre.h"
+
+#if HAS_ETHERNET
+
+#include "ethernet.h"
+#include "../core/serial.h"
+
+#define DEBUG_OUT ENABLED(DEBUG_ETHERNET)
+#include "../core/debug_out.h"
+
+bool MarlinEthernet::hardware_enabled, // = false
+     MarlinEthernet::have_telnet_client; // = false
+
+IPAddress MarlinEthernet::ip,
+          MarlinEthernet::myDns,
+          MarlinEthernet::gateway,
+          MarlinEthernet::subnet;
+
+EthernetClient  MarlinEthernet::telnetClient;  // connected client
+
+MarlinEthernet ethernet;
+
+EthernetServer server(23);    // telnet server
+
+enum linkStates { UNLINKED, LINKING, LINKED, CONNECTING, CONNECTED, NO_HARDWARE } linkState;
+
+#ifdef __IMXRT1062__
+
+  static void teensyMAC(uint8_t * const mac) {
+    const uint32_t m1 = HW_OCOTP_MAC1, m2 = HW_OCOTP_MAC0;
+    mac[0] = m1 >> 8;
+    mac[1] = m1 >> 0;
+    mac[2] = m2 >> 24;
+    mac[3] = m2 >> 16;
+    mac[4] = m2 >> 8;
+    mac[5] = m2 >> 0;
+  }
+
+#else
+
+  byte mac[] = MAC_ADDRESS;
+
+#endif
+
+void ethernet_cable_error() { SERIAL_ERROR_MSG("Ethernet cable is not connected."); }
+
+void MarlinEthernet::init() {
+  if (!hardware_enabled) return;
+
+  SERIAL_ECHO_MSG("Starting network...");
+
+  // Init the Ethernet device
+  #ifdef __IMXRT1062__
+    uint8_t mac[6];
+    teensyMAC(mac);
+  #endif
+
+  if (!ip) {
+    Ethernet.begin(mac); // use DHCP
+  }
+  else {
+    if (!gateway) {
+      gateway = ip;
+      gateway[3] = 1;
+      myDns = gateway;
+      subnet = IPAddress(255,255,255,0);
+    }
+    if (!myDns) myDns = gateway;
+    if (!subnet) subnet = IPAddress(255,255,255,0);
+    Ethernet.begin(mac, ip, myDns, gateway, subnet);
+  }
+
+  // Check for Ethernet hardware present
+  if (Ethernet.hardwareStatus() == EthernetNoHardware) {
+    SERIAL_ERROR_MSG("No Ethernet hardware found.");
+    linkState = NO_HARDWARE;
+    return;
+  }
+
+  linkState = UNLINKED;
+
+  if (Ethernet.linkStatus() == LinkOFF)
+    ethernet_cable_error();
+}
+
+void MarlinEthernet::check() {
+  if (!hardware_enabled) return;
+
+  switch (linkState) {
+    case NO_HARDWARE:
+      break;
+
+    case UNLINKED:
+      if (Ethernet.linkStatus() == LinkOFF) break;
+
+      SERIAL_ECHOLNPGM("Ethernet cable connected");
+      server.begin();
+      linkState = LINKING;
+      break;
+
+    case LINKING:
+      if (!Ethernet.localIP()) break;
+
+      SERIAL_ECHOPGM("Successfully started telnet server with IP ");
+      MYSERIAL0.println(Ethernet.localIP());
+
+      linkState = LINKED;
+      break;
+
+    case LINKED:
+      if (Ethernet.linkStatus() == LinkOFF) {
+        ethernet_cable_error();
+        linkState = UNLINKED;
+        break;
+      }
+      telnetClient = server.accept();
+      if (telnetClient) linkState = CONNECTING;
+      break;
+
+    case CONNECTING:
+      telnetClient.println("Marlin " SHORT_BUILD_VERSION);
+      #if defined(STRING_DISTRIBUTION_DATE) && defined(STRING_CONFIG_H_AUTHOR)
+        telnetClient.println(
+          " Last Updated: " STRING_DISTRIBUTION_DATE
+          " | Author: " STRING_CONFIG_H_AUTHOR
+        );
+      #endif
+      telnetClient.println("Compiled: " __DATE__);
+
+      SERIAL_ECHOLNPGM("Client connected");
+      have_telnet_client = true;
+      linkState = CONNECTED;
+      break;
+
+    case CONNECTED:
+      if (telnetClient && !telnetClient.connected()) {
+        SERIAL_ECHOLNPGM("Client disconnected");
+        telnetClient.stop();
+        have_telnet_client = false;
+        linkState = LINKED;
+      }
+      if (Ethernet.linkStatus() == LinkOFF) {
+        ethernet_cable_error();
+        if (telnetClient) telnetClient.stop();
+        linkState = UNLINKED;
+      }
+      break;
+
+    default: break;
+  }
+}
+
+#endif // HAS_ETHERNET

Marlin/src/feature/ethernet.h

+/**
+ * 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/>.
+ *
+ */
+#pragma once
+
+#ifdef __IMXRT1062__
+  #include <NativeEthernet.h>
+#endif
+
+// Teensy 4.1 uses internal MAC Address
+
+class MarlinEthernet {
+  public:
+    static bool hardware_enabled, have_telnet_client;
+    static IPAddress ip, myDns, gateway, subnet;
+    static EthernetClient telnetClient;
+    static void init();
+    static void check();
+};
+
+extern MarlinEthernet ethernet;

Marlin/src/gcode/feature/network/M552-M554.cpp

+/**
+ * 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/MarlinConfigPre.h"
+
+#if HAS_ETHERNET
+
+#include "../../../feature/ethernet.h"
+#include "../../../core/serial.h"
+#include "../../gcode.h"
+
+void say_ethernet() { SERIAL_ECHOPGM("  Ethernet "); }
+
+void ETH0_report() {
+  say_ethernet();
+  SERIAL_ECHO_TERNARY(ethernet.hardware_enabled, "port ", "en", "dis", "abled.\n");
+  if (ethernet.hardware_enabled) {
+    say_ethernet();
+    SERIAL_ECHO_TERNARY(ethernet.have_telnet_client, "client ", "en", "dis", "abled.\n");
+  }
+  else
+    SERIAL_ECHOLNPGM("Send 'M552 S1' to enable.");
+}
+
+void MAC_report() {
+  uint8_t mac[6];
+  if (ethernet.hardware_enabled) {
+    Ethernet.MACAddress(mac);
+    SERIAL_ECHOPGM("  MAC: ");
+    LOOP_L_N(i, 6) {
+      SERIAL_PRINTF("%02X", mac[i]);
+      if (i < 5) SERIAL_CHAR(':');
+    }
+  }
+  SERIAL_EOL();
+}
+
+// Display current values when the link is active,
+// otherwise show the stored values
+void ip_report(const uint16_t cmd, PGM_P const post, const IPAddress &ipo) {
+  SERIAL_CHAR('M'); SERIAL_ECHO(cmd); SERIAL_CHAR(' ');
+  LOOP_L_N(i, 4) {
+    SERIAL_ECHO(ipo[i]);
+    if (i < 3) SERIAL_CHAR('.');
+  }
+  SERIAL_ECHOPGM(" ; ");
+  SERIAL_ECHOPGM_P(post);
+  SERIAL_EOL();
+}
+void M552_report() {
+  ip_report(552, PSTR("ip address"), Ethernet.linkStatus() == LinkON ? Ethernet.localIP() : ethernet.ip);
+}
+void M553_report() {
+  ip_report(553, PSTR("subnet mask"), Ethernet.linkStatus() == LinkON ? Ethernet.subnetMask() : ethernet.subnet);
+}
+void M554_report() {
+  ip_report(554, PSTR("gateway"), Ethernet.linkStatus() == LinkON ? Ethernet.gatewayIP() : ethernet.gateway);
+}
+
+/**
+ * M552: Set IP address, enable/disable network interface
+ *
+ *  S0   : disable networking
+ *  S1   : enable networking
+ *  S-1  : reset network interface
+ *
+ *  Pnnn : Set IP address, 0.0.0.0 means acquire an IP address using DHCP
+ */
+void GcodeSuite::M552() {
+  const bool seenP = parser.seenval('P');
+  if (seenP) ethernet.ip.fromString(parser.value_string());
+
+  const bool seenS = parser.seenval('S');
+  if (seenS) {
+    switch (parser.value_int()) {
+      case -1:
+        if (ethernet.telnetClient) ethernet.telnetClient.stop();
+        ethernet.init();
+        break;
+      case 0: ethernet.hardware_enabled = false; break;
+      case 1: ethernet.hardware_enabled = true; break;
+      default: break;
+    }
+  }
+  const bool nopar = !seenS && !seenP;
+  if (nopar || seenS) ETH0_report();
+  if (nopar || seenP) M552_report();
+}
+
+/**
+ * M553 Pnnn - Set netmask
+ */
+void GcodeSuite::M553() {
+  if (parser.seenval('P')) ethernet.subnet.fromString(parser.value_string());
+  M553_report();
+}
+
+/**
+ * M554 Pnnn - Set Gateway
+ */
+void GcodeSuite::M554() {
+  if (parser.seenval('P')) ethernet.gateway.fromString(parser.value_string());
+  M554_report();
+}
+
+#endif // HAS_ETHERNET

Marlin/src/gcode/gcode.cpp

         case 540: M540(); break;                                  // M540: Set abort on endstop hit for SD printing
       #endif
 
+      #if HAS_ETHERNET
+        case 552: M552(); break;                                  // M552: Set IP address
+        case 553: M553(); break;                                  // M553: Set gateway
+        case 554: M554(); break;                                  // M554: Set netmask
+      #endif
+
       #if ENABLED(BAUD_RATE_GCODE)
         case 575: M575(); break;                                  // M575: Set serial baudrate
       #endif

Marlin/src/gcode/gcode.h

  * M512 - Set/Change/Remove Password
  * M524 - Abort the current SD print job started with M24. (Requires SDSUPPORT)
  * M540 - Enable/disable SD card abort on endstop hit: "M540 S<state>". (Requires SD_ABORT_ON_ENDSTOP_HIT)
+ * M552 - Get or set IP address. Enable/disable network interface. (Requires enabled Ethernet port)
+ * M553 - Get or set IP netmask. (Requires enabled Ethernet port)
+ * M554 - Get or set IP gateway. (Requires enabled Ethernet port)
  * M569 - Enable stealthChop on an axis. (Requires at least one _DRIVER_TYPE to be TMC2130/2160/2208/2209/5130/5160)
  * M600 - Pause for filament change: "M600 X<pos> Y<pos> Z<raise> E<first_retract> L<later_retract>". (Requires ADVANCED_PAUSE_FEATURE)
  * M603 - Configure filament change: "M603 T<tool> U<unload_length> L<load_length>". (Requires ADVANCED_PAUSE_FEATURE)
 
   TERN_(SD_ABORT_ON_ENDSTOP_HIT, static void M540());
 
+  #if HAS_ETHERNET
+    static void M552();
+    static void M553();
+    static void M554();
+  #endif
+
   TERN_(BAUD_RATE_GCODE, static void M575());
 
   #if ENABLED(ADVANCED_PAUSE_FEATURE)

Marlin/src/gcode/queue.cpp

   #include "../feature/leds/printer_event_leds.h"
 #endif
 
+#if HAS_ETHERNET
+  #include "../feature/ethernet.h"
+#endif
+
 #if ENABLED(BINARY_FILE_TRANSFER)
   #include "../feature/binary_stream.h"
 #endif
 }
 
 inline bool serial_data_available() {
-  return MYSERIAL0.available() || TERN0(HAS_MULTI_SERIAL, MYSERIAL1.available());
+  byte data_available = 0;
+  if (MYSERIAL0.available()) data_available++;
+  #ifdef SERIAL_PORT_2
+    const bool port2_open = TERN1(HAS_ETHERNET, ethernet.have_telnet_client);
+    if (port2_open && MYSERIAL1.available()) data_available++;
+  #endif
+  return data_available > 0;
 }
 
 inline int read_serial(const uint8_t index) {
   switch (index) {
     case 0: return MYSERIAL0.read();
-    #if HAS_MULTI_SERIAL
-      case 1: return MYSERIAL1.read();
-    #endif
+    case 1: {
+      #if HAS_MULTI_SERIAL
+        const bool port2_open = TERN1(HAS_ETHERNET, ethernet.have_telnet_client);
+        if (port2_open) return MYSERIAL1.read();
+      #endif
+    }
     default: return -1;
   }
 }

Marlin/src/inc/Conditionals_LCD.h

 #if SERIAL_PORT == -1 || SERIAL_PORT_2 == -1
   #define HAS_USB_SERIAL 1
 #endif
+#if SERIAL_PORT_2 == -2
+  #define HAS_ETHERNET 1
+#endif
 
 // Fallback Stepper Driver types
 #ifndef X_DRIVER_TYPE

Marlin/src/module/settings.cpp

   #include "../lcd/tft/touch.h"
 #endif
 
+#if HAS_ETHERNET
+  #include "../feature/ethernet.h"
+#endif
+
 #pragma pack(push, 1) // No padding between variables
 
+#if HAS_ETHERNET
+  void ETH0_report();
+  void MAC_report();
+  void M552_report();
+  void M553_report();
+  void M554_report();
+#endif
+
 typedef struct { uint16_t X, Y, Z, X2, Y2, Z2, Z3, Z4, E0, E1, E2, E3, E4, E5, E6, E7; } tmc_stepper_current_t;
 typedef struct { uint32_t X, Y, Z, X2, Y2, Z2, Z3, Z4, E0, E1, E2, E3, E4, E5, E6, E7; } tmc_hybrid_threshold_t;
 typedef struct {  int16_t X, Y, Z, X2, Y2, Z2, Z3, Z4;                                 } tmc_sgt_t;
     touch_calibration_t touch_calibration;
   #endif
 
+  // Ethernet settings
+  #if HAS_ETHERNET
+    bool ethernet_hardware_enabled;                     // M552 S
+    uint32_t ethernet_ip,                               // M552 P
+             ethernet_dns,
+             ethernet_gateway,                          // M553 P
+             ethernet_subnet;                           // M554 P
+  #endif
+
 } SettingsData;
 
 //static_assert(sizeof(SettingsData) <= MARLIN_EEPROM_SIZE, "EEPROM too small to contain SettingsData!");
     #endif
 
     //
-    // Validate CRC and Data Size
+    // Ethernet network info
+    //
+    #if HAS_ETHERNET
+    {
+      _FIELD_TEST(ethernet_hardware_enabled);
+      const bool ethernet_hardware_enabled = ethernet.hardware_enabled;
+      const uint32_t ethernet_ip      = ethernet.ip,
+                     ethernet_dns     = ethernet.myDns,
+                     ethernet_gateway = ethernet.gateway,
+                     ethernet_subnet  = ethernet.subnet;
+      EEPROM_WRITE(ethernet_hardware_enabled);
+      EEPROM_WRITE(ethernet_ip);
+      EEPROM_WRITE(ethernet_dns);
+      EEPROM_WRITE(ethernet_gateway);
+      EEPROM_WRITE(ethernet_subnet);
+    }
+    #endif
+
+    //
+    // Report final CRC and Data Size
     //
     if (!eeprom_error) {
       const uint16_t eeprom_size = eeprom_index - (EEPROM_OFFSET),
         EEPROM_READ(touch.calibration);
       #endif
 
+      //
+      // Ethernet network info
+      //
+      #if HAS_ETHERNET
+        _FIELD_TEST(ethernet_hardware_enabled);
+        uint32_t ethernet_ip, ethernet_dns, ethernet_gateway, ethernet_subnet;
+        EEPROM_READ(ethernet.hardware_enabled);
+        EEPROM_READ(ethernet_ip);      ethernet.ip      = ethernet_ip;
+        EEPROM_READ(ethernet_dns);     ethernet.myDns   = ethernet_dns;
+        EEPROM_READ(ethernet_gateway); ethernet.gateway = ethernet_gateway;
+        EEPROM_READ(ethernet_subnet);  ethernet.subnet  = ethernet_subnet;
+      #endif
+
+      //
+      // Validate Final Size and CRC
+      //
       eeprom_error = size_error(eeprom_index - (EEPROM_OFFSET));
       if (eeprom_error) {
         DEBUG_ECHO_START();
         #endif
       );
     #endif
+
+    #if HAS_ETHERNET
+      CONFIG_ECHO_HEADING("Ethernet:");
+      if (!forReplay) { CONFIG_ECHO_START(); ETH0_report(); }
+      CONFIG_ECHO_START(); SERIAL_ECHO_SP(2); MAC_report();
+      CONFIG_ECHO_START(); SERIAL_ECHO_SP(2); M552_report();
+      CONFIG_ECHO_START(); SERIAL_ECHO_SP(2); M553_report();
+      CONFIG_ECHO_START(); SERIAL_ECHO_SP(2); M554_report();
+    #endif
   }
 
 #endif // !DISABLE_M503

buildroot/tests/teensy41-tests

 opt_set MOTHERBOARD BOARD_TEENSY41
 opt_set EXTRUDERS 2
 opt_set TEMP_SENSOR_1 1
-opt_enable MAGNETIC_PARKING_EXTRUDER
-exec_test $1 $2 "MAGNETIC_PARKING_EXTRUDER with LCD"
+opt_set SERIAL_PORT_2 -2
+opt_enable EEPROM_SETTINGS MAGNETIC_PARKING_EXTRUDER
+exec_test $1 $2 "Ethernet, EEPROM, Magnetic Parking Extruder, No LCD"
 
 #
 # Mixing Extruder

platformio.ini

 I2C_POSITION_ENCODERS   = src_filter=+<src/feature/encoder_i2c.cpp>
 IIC_BL24CXX_EEPROM      = src_filter=+<src/libs/BL24CXX.cpp>
 HAS_SPI_FLASH           = src_filter=+<src/libs/W25Qxx.cpp>
+HAS_ETHERNET            = src_filter=+<src/feature/ethernet.cpp>
 HAS_FANMUX              = src_filter=+<src/feature/fanmux.cpp>
 FILAMENT_WIDTH_SENSOR   = src_filter=+<src/feature/filwidth.cpp> +<src/gcode/feature/filwidth>
 FWRETRACT               = src_filter=+<src/feature/fwretract.cpp> +<src/gcode/feature/fwretract>
 board         = esp32dev
 build_flags   = ${common.build_flags} -DCORE_DEBUG_LEVEL=0
 src_filter    = ${common.default_src_filter} +<src/HAL/ESP32>
+lib_ignore    = NativeEthernet
 upload_speed  = 115200
 #upload_port   = marlinesp.local
 #board_build.flash_mode = qio
 platform      = teensy
 board         = teensy31
 src_filter    = ${common.default_src_filter} +<src/HAL/TEENSY31_32>
+lib_ignore    = NativeEthernet
 
 #
 # Teensy 3.5 / 3.6 (ARM Cortex-M4)
 platform      = teensy
 board         = teensy35
 src_filter    = ${common.default_src_filter} +<src/HAL/TEENSY35_36>
+lib_ignore    = NativeEthernet
 
 [env:teensy36]
 platform      = teensy
 board         = teensy36
 src_filter    = ${common.default_src_filter} +<src/HAL/TEENSY35_36>
+lib_ignore    = NativeEthernet
 
 #
 # Teensy 4.0 / 4.1 (ARM Cortex-M7)