Add base generic ELRS targets

boards/esp32-pico-d4.json

@@ -0,0 +1,25 @@
+{
+    "build": {
+      "core": "esp32",
+      "extra_flags": "-DARDUINO_ESP32_PICO_D4",
+      "f_cpu": "240000000L",
+      "f_flash": "40000000L",
+      "flash_mode": "dio",
+      "mcu": "esp32",
+      "variant": "esp32"
+    },
+    "frameworks": [
+      "arduino",
+      "espidf"
+    ],
+    "name": "Espressif ESP32-PICO-D4",
+    "upload": {
+      "flash_size": "4MB",
+      "maximum_ram_size": 327680,
+      "maximum_size": 1310720,
+      "require_upload_port": true,
+      "speed": 115200
+    },
+    "url": "https://www.espressif.com/en/products/socs/esp32-pico-d4",
+    "vendor": "Espressif"
+  }

variants/esp32/elrs-generic/platformio.ini

@@ -0,0 +1,15 @@
+[env:elrs-generic]
+extends = esp32_base
+platform = espressif32
+board = esp32-pico-d4
+framework = arduino 
+build_flags =
+   ${esp32_base.build_flags} 
+   -D PRIVATE_HW 
+   -I variants/esp32/elrs-generic
+   -O2
+   -D CONFIG_DISABLE_HAL_LOCKS=1
+upload_protocol = esptool
+upload_speed = 460800
+lib_deps =
+  ${esp32_base.lib_deps}

variants/esp32/elrs-generic/rfswitch.h

@@ -0,0 +1,20 @@
+#include "RadioLib.h"
+
+// This is rewritten to match the requirements of the E80-900M2213S
+// The E80 does not conform to the reference Semtech switches(!) and therefore needs a custom matrix.
+// See footnote #3 in "https://www.cdebyte.com/products/E80-900M2213S/2#Pin"
+// RF Switch Matrix SubG RFO_HP_LF / RFO_LP_LF / RFI_[NP]_LF0
+// DIO5 -> RFSW0_V1
+// DIO6 -> RFSW1_V2
+// DIO7 -> not connected on E80 module - note that GNSS and Wifi scanning are not possible.
+
+static const uint32_t rfswitch_dio_pins[] = {RADIOLIB_LR11X0_DIO5, RADIOLIB_LR11X0_DIO6, RADIOLIB_LR11X0_DIO7, RADIOLIB_NC,
+                                             RADIOLIB_NC};
+
+static const Module::RfSwitchMode_t rfswitch_table[] = {
+    // mode                  DIO5  DIO6  DIO7
+    {LR11x0::MODE_STBY, {LOW, LOW, LOW}},  {LR11x0::MODE_RX, {LOW, HIGH, LOW}},
+    {LR11x0::MODE_TX, {HIGH, HIGH, LOW}},  {LR11x0::MODE_TX_HP, {HIGH, LOW, LOW}},
+    {LR11x0::MODE_TX_HF, {LOW, LOW, LOW}}, {LR11x0::MODE_GNSS, {LOW, LOW, HIGH}},
+    {LR11x0::MODE_WIFI, {LOW, LOW, LOW}},  END_OF_MODE_TABLE,
+};

variants/esp32/elrs-generic/variant.h

@@ -0,0 +1,125 @@
+#ifndef ELRS_TARGETS_H
+#define ELRS_TARGETS_H
+
+// Target selection - uncomment ONE of these
+// #define ELRS_GENERIC_900
+#define ELRS_GENERIC_2400
+// #define ELRS_GENERIC_LR1121 // Currently only the LR1121 True Diversity target is supported
+
+
+// #define HAS_DUAL_RADIO TODO for the funture, currently does nothing.
+
+
+#undef HAS_GPS
+#undef GPS_RX_PIN
+#undef GPS_TX_PIN
+#undef EXT_NOTIFY_OUT
+
+//==============================================================================
+// ELRS GENERIC 900 MHz TARGET
+//==============================================================================
+#ifdef ELRS_GENERIC_900
+
+// Chip selection
+#define USE_RF95
+
+// Serial pins
+#define SERIAL_RX_PIN 3
+#define SERIAL_TX_PIN 1
+
+// Radio pins
+#define LORA_DIO0 4
+#define LORA_DIO1 5
+#define LORA_MISO 12
+#define LORA_MOSI 13
+#define LORA_CS 15
+#define LORA_SCK 14
+#define LORA_RESET 2
+
+// GPIO
+#define LED_PIN 16
+#define BUTTON_PIN 0
+#define BUTTON_NEED_PULLUP
+
+#endif // ELRS_GENERIC_900
+
+//==============================================================================
+// ELRS GENERIC 2.4 GHz TARGET
+//==============================================================================
+#ifdef ELRS_GENERIC_2400
+
+// Chip selection
+#define USE_SX1280
+
+// Serial pins
+#define SERIAL_RX_PIN 3
+#define SERIAL_TX_PIN 1
+
+// Radio pins
+#define LORA_BUSY 5
+#define LORA_DIO1 4
+#define LORA_MISO 12
+#define LORA_MOSI 13
+#define LORA_CS 15
+#define LORA_SCK 14
+#define LORA_RESET 2
+
+#define SX128X_CS LORA_CS
+#define SX128X_DIO1 LORA_DIO1
+#define SX128X_BUSY LORA_BUSY
+#define SX128X_RESET LORA_RESET
+#define SX128X_MAX_POWER 13
+
+// GPIO
+#define LED_PIN 16
+#define BUTTON_PIN 0
+#define BUTTON_NEED_PULLUP
+
+#endif // ELRS_GENERIC_2400
+
+//==============================================================================
+// ELRS TRUE DIVERSITY LR1121 TARGET
+//==============================================================================
+#ifdef ELRS_GENERIC_LR1121
+
+// Chip selection
+// #define USE_SX1262
+#define USE_LR1121
+
+
+// Board has RGB LED 21
+#define HAS_NEOPIXEL                         // Enable the use of neopixels
+#define NEOPIXEL_COUNT 1                     // How many neopixels are connected
+#define NEOPIXEL_DATA 22                     // gpio pin used to send data to the neopixels
+#define NEOPIXEL_TYPE (NEO_GRB + NEO_KHZ800) // type of neopixels in use
+
+// GPIO
+#define BUTTON_PIN 0 // This is the BOOT button
+#define BUTTON_NEED_PULLUP
+
+// Radio pins
+#define LORA_MISO 33
+#define LORA_MOSI 32
+#define LORA_SCK 25
+#define LORA_CS 27
+#define LORA_RESET 26
+#define LORA_DIO1 37
+
+#define LR1121_IRQ_PIN 37
+#define LR1121_NRESET_PIN 26
+#define LR1121_BUSY_PIN 36
+#define LR1121_SPI_NSS_PIN 27
+#define LR1121_SPI_SCK_PIN 25
+#define LR1121_SPI_MOSI_PIN 32
+#define LR1121_SPI_MISO_PIN 33
+#define LR11X0_DIO_AS_RF_SWITCH
+
+#endif // ELRS_GENERIC_LR1121
+
+
+// Ensure only one target is selected
+#if defined(ELRS_GENERIC_900) + defined(ELRS_GENERIC_2400) + defined(ELRS_GENERIC_LR1121) != 1
+#error "Exactly one ELRS target must be defined"
+#endif
+
+#endif // ELRS_TARGETS_H