From 8d5dbdbdbf6770635f396abf06878635574599ae Mon Sep 17 00:00:00 2001 From: Ben Meadors Date: Thu, 20 Nov 2025 06:13:32 -0600 Subject: [PATCH] WIP --- .../ELECROW-ThinkNode-M4/platformio.ini | 16 +++ .../nrf52840/ELECROW-ThinkNode-M4/variant.cpp | 47 +++++++ .../nrf52840/ELECROW-ThinkNode-M4/variant.h | 122 ++++++++++++++++++ 3 files changed, 185 insertions(+) create mode 100644 variants/nrf52840/ELECROW-ThinkNode-M4/platformio.ini create mode 100644 variants/nrf52840/ELECROW-ThinkNode-M4/variant.cpp create mode 100644 variants/nrf52840/ELECROW-ThinkNode-M4/variant.h diff --git a/variants/nrf52840/ELECROW-ThinkNode-M4/platformio.ini b/variants/nrf52840/ELECROW-ThinkNode-M4/platformio.ini new file mode 100644 index 000000000..4f29e3c4c --- /dev/null +++ b/variants/nrf52840/ELECROW-ThinkNode-M4/platformio.ini @@ -0,0 +1,16 @@ +; Elecrow ThinkNode M4 (nRF52840 + LR1110) +[env:thinknode_m4] +extends = nrf52840_base +board = ThinkNode-M4 +board_check = true +debug_tool = jlink + +build_flags = ${nrf52840_base.build_flags} + -Ivariants/nrf52840/ELECROW-ThinkNode-M4 + -DELECROW_ThinkNode_M4 + +build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/ELECROW-ThinkNode-M4> +lib_deps = + ${nrf52840_base.lib_deps} + lewisxhe/PCF8563_Library@^1.0.1 + diff --git a/variants/nrf52840/ELECROW-ThinkNode-M4/variant.cpp b/variants/nrf52840/ELECROW-ThinkNode-M4/variant.cpp new file mode 100644 index 000000000..6b5737b83 --- /dev/null +++ b/variants/nrf52840/ELECROW-ThinkNode-M4/variant.cpp @@ -0,0 +1,47 @@ +/* + Copyright (c) 2014-2015 Arduino LLC. All right reserved. + Copyright (c) 2016 Sandeep Mistry All right reserved. + Copyright (c) 2018, Adafruit Industries (adafruit.com) + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library 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 Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#include "variant.h" +#include "nrf.h" +#include "wiring_constants.h" +#include "wiring_digital.h" + +const uint32_t g_ADigitalPinMap[] = { + // P0 - pins 0 and 1 are hardwired for xtal and should never be enabled + 0xff, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, + + // P1 + 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47}; + +void initVariant() +{ +#if (PIN_LED1 >= 0) + pinMode(PIN_LED1, OUTPUT); + ledOff(PIN_LED1); +#endif +#if (PIN_LED2 >= 0) + pinMode(PIN_LED2, OUTPUT); + ledOff(PIN_LED2); +#endif +#if (PIN_LED3 >= 0) + pinMode(PIN_LED3, OUTPUT); + ledOff(PIN_LED3); +#endif +} diff --git a/variants/nrf52840/ELECROW-ThinkNode-M4/variant.h b/variants/nrf52840/ELECROW-ThinkNode-M4/variant.h new file mode 100644 index 000000000..4b629a50f --- /dev/null +++ b/variants/nrf52840/ELECROW-ThinkNode-M4/variant.h @@ -0,0 +1,122 @@ +/* + Copyright (c) 2014-2015 Arduino LLC. All right reserved. + Copyright (c) 2016 Sandeep Mistry All right reserved. + Copyright (c) 2018, Adafruit Industries (adafruit.com) + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library 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 Lesser General Public License for more details. + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#ifndef _VARIANT_ELECROW_THINKNODE_M4_ +#define _VARIANT_ELECROW_THINKNODE_M4_ + +/** Master clock frequency */ +#define VARIANT_MCK (64000000ul) + +#define USE_LFXO // Board uses 32 kHz crystal for LF domain + +/*---------------------------------------------------------------------------- + * Headers + *----------------------------------------------------------------------------*/ + +#include "WVariant.h" + +#ifdef __cplusplus +extern "C" { +#endif // __cplusplus + +// Number of pins defined in PinDescription array +#define PINS_COUNT (48) +#define NUM_DIGITAL_PINS (48) +#define NUM_ANALOG_INPUTS (6) +#define NUM_ANALOG_OUTPUTS (0) + +// LEDs +#define PIN_LED1 (32 + 9) // P1.09, status LED (blue) +#define PIN_LED2 -1 +#define PIN_LED3 -1 + +#define LED_BUILTIN PIN_LED1 +#define LED_STATE_ON 0 // active-low LED drive + +// Buttons +#define PIN_BUTTON1 (0 + 4) // P0.04 KEY input + +// USB / power detection +#define EXT_PWR_DETECT (32 + 3) // P1.03 USB present sense + +// I2C bus +#define WIRE_INTERFACES_COUNT 1 +#define PIN_WIRE_SDA (32 + 0) // P1.00 SDA1 +#define PIN_WIRE_SCL (32 + 5) // P1.05 SCL1 + +// Analog pins +#define PIN_A0 (2) // P0.02 +#define BATTERY_PIN PIN_A0 +#define BATTERY_SENSE_SAMPLES 30 +#define ADC_RESOLUTION 14 +#define BATTERY_SENSE_RESOLUTION_BITS 12 +#define BATTERY_SENSE_RESOLUTION 4096.0 +#define ADC_MULTIPLIER (2.00F) +#undef AREF_VOLTAGE +#define AREF_VOLTAGE 3.0 +#define VBAT_AR_INTERNAL AR_INTERNAL_3_0 + +// GPS interface (L76K) +#define HAS_GPS 1 +#define GPS_L76K +#define GPS_BAUDRATE 9600 +#define PIN_GPS_REINIT (0 + 3) // P0.03 GPS_RST +#define PIN_GPS_STANDBY (0 + 28) // P0.28 GPS_STANDBY +#define PIN_GPS_EN (32 + 11) // P1.11 GPS_EN +#define GPS_EN_ACTIVE HIGH +#define GPS_TX_PIN (32 + 12) // P1.12 GPS_TX -> MCU RX +#define GPS_RX_PIN (32 + 14) // P1.14 GPS_RX -> MCU TX +#define PIN_SERIAL1_RX GPS_TX_PIN +#define PIN_SERIAL1_TX GPS_RX_PIN +#define GPS_THREAD_INTERVAL 50 + +// LoRa (LR1110) SPI bus +#define SPI_INTERFACES_COUNT 1 +#define PIN_SPI_MISO (0 + 8) // P0.08 +#define PIN_SPI_MOSI (0 + 7) // P0.07 +#define PIN_SPI_SCK (0 + 6) // P0.06 +#define PIN_SPI_NSS (0 + 27) // P0.27 + +#define LORA_CS PIN_SPI_NSS +#define LORA_SCK PIN_SPI_SCK +#define LORA_MISO PIN_SPI_MISO +#define LORA_MOSI PIN_SPI_MOSI +#define LORA_RESET (32 + 8) // P1.08 LR_NRESET +#define LORA_DIO1 (0 + 24) // P0.24 LR_DIO1 / IRQ +#define LORA_DIO2 (0 + 26) // P0.26 LR_BUSY (treated as DIO2) + +#define USE_LR1110 +#define LR1110_IRQ_PIN LORA_DIO1 +#define LR1110_NRESET_PIN LORA_RESET +#define LR1110_BUSY_PIN LORA_DIO2 +#define LR1110_SPI_NSS_PIN LORA_CS +#define LR1110_SPI_SCK_PIN LORA_SCK +#define LR1110_SPI_MOSI_PIN LORA_MOSI +#define LR1110_SPI_MISO_PIN LORA_MISO +#define LR11X0_DIO3_TCXO_VOLTAGE 3.3f +#define LR11X0_DIO_AS_RF_SWITCH + +// Peripheral power control +#define PIN_POWER_EN (0 + 11) // P0.11 PERIPH_EN + +#ifdef __cplusplus +} +#endif + +#endif // _VARIANT_ELECROW_THINKNODE_M4_