Jonathan BennettandGitHub
fd8ba4fa4e
* Chop down tft-related loooong ifdefs chains * Fix accidental sweep-up of portduino into screen #ifdef refactor
204 lines
6.7 KiB
C
204 lines
6.7 KiB
C
/*
|
|
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_HELTEC_NRF_
|
|
#define _VARIANT_HELTEC_NRF_
|
|
/** Master clock frequency */
|
|
#define VARIANT_MCK (64000000ul)
|
|
|
|
#define USE_LFXO // Board uses 32khz crystal for LF
|
|
|
|
/*----------------------------------------------------------------------------
|
|
* Headers
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
#include "WVariant.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif // __cplusplus
|
|
|
|
#define VEXT_ENABLE (0 + 26)
|
|
#define VEXT_ON_VALUE HIGH
|
|
|
|
// ST7735S TFT LCD
|
|
#define HAS_SPI_TFT 1
|
|
#define ST7735_CS (0 + 22)
|
|
#define ST7735_RS (0 + 15) // DC
|
|
#define ST7735_SDA (0 + 17) // MOSI
|
|
#define ST7735_SCK (0 + 20)
|
|
#define ST7735_RESET (0 + 13)
|
|
#define ST7735_MISO -1
|
|
#define ST7735_BUSY -1
|
|
#define ST7735_BL (32 + 12)
|
|
#define SPI_FREQUENCY 40000000
|
|
#define SPI_READ_FREQUENCY 16000000
|
|
#define SCREEN_ROTATE
|
|
#define TFT_HEIGHT 160
|
|
#define TFT_WIDTH 80
|
|
#define TFT_OFFSET_X 24
|
|
#define TFT_OFFSET_Y 0
|
|
#define TFT_INVERT false
|
|
#define SCREEN_TRANSITION_FRAMERATE 3 // fps
|
|
#define DISPLAY_FORCE_SMALL_FONTS
|
|
|
|
// Number of pins defined in PinDescription array
|
|
#define PINS_COUNT (48)
|
|
#define NUM_DIGITAL_PINS (48)
|
|
#define NUM_ANALOG_INPUTS (1)
|
|
#define NUM_ANALOG_OUTPUTS (0)
|
|
|
|
// LEDs
|
|
#define PIN_LED1 (0 + 28) // green (confirmed on 1.0 board)
|
|
#define LED_BLUE PIN_LED1 // fake for bluefruit library
|
|
#define LED_GREEN PIN_LED1
|
|
#define LED_STATE_ON 1 // State when LED is lit
|
|
|
|
// #define HAS_NEOPIXEL // Enable the use of neopixels
|
|
// #define NEOPIXEL_COUNT 2 // How many neopixels are connected
|
|
// #define NEOPIXEL_DATA 14 // gpio pin used to send data to the neopixels
|
|
// #define NEOPIXEL_TYPE (NEO_GRB + NEO_KHZ800) // type of neopixels in use
|
|
|
|
/*
|
|
* Buttons
|
|
*/
|
|
#define PIN_BUTTON1 (32 + 10)
|
|
// #define PIN_BUTTON2 (0 + 18) // 0.18 is labeled on the board as RESET but we configure it in the bootloader as a regular
|
|
// GPIO
|
|
|
|
/*
|
|
No longer populated on PCB
|
|
*/
|
|
#define PIN_SERIAL2_RX (0 + 9)
|
|
#define PIN_SERIAL2_TX (0 + 10)
|
|
|
|
/*
|
|
* I2C
|
|
*/
|
|
|
|
#define WIRE_INTERFACES_COUNT 2
|
|
|
|
// I2C bus 0
|
|
#define PIN_WIRE_SDA (0 + 7) // SDA
|
|
#define PIN_WIRE_SCL (0 + 8) // SCL
|
|
|
|
// I2C bus 1
|
|
#define PIN_WIRE1_SDA (0 + 4) // SDA (secondary bus)
|
|
#define PIN_WIRE1_SCL (0 + 27) // SCL (secondary bus)
|
|
|
|
/*
|
|
* Lora radio
|
|
*/
|
|
|
|
#define USE_SX1262
|
|
#define SX126X_CS (0 + 5) // FIXME - we really should define LORA_CS instead
|
|
#define LORA_CS (0 + 5)
|
|
#define SX126X_DIO1 (0 + 21)
|
|
#define SX126X_BUSY (0 + 19)
|
|
#define SX126X_RESET (0 + 16)
|
|
#define SX126X_DIO2_AS_RF_SWITCH
|
|
#define SX126X_DIO3_TCXO_VOLTAGE 1.8
|
|
|
|
// ---- KCT8103L RF FRONT END CONFIGURATION ----
|
|
// The heltec_wireless_tracker_v2 uses a KCT8103L FEM chip with integrated PA and LNA
|
|
// RF path: SX1262 -> Pi attenuator -> KCT8103L PA -> Antenna
|
|
// Control logic (from KCT8103L datasheet):
|
|
// Transmit PA: CSD=1, CTX=1, CPS=1
|
|
// Receive LNA: CSD=1, CTX=0, CPS=X (21dB gain, 1.9dB NF)
|
|
// Receive bypass: CSD=1, CTX=1, CPS=0
|
|
// Shutdown: CSD=0, CTX=X, CPS=X
|
|
// Pin mapping:
|
|
// CPS (pin 5) -> SX1262 DIO2: TX/RX path select (automatic via SX126X_DIO2_AS_RF_SWITCH)
|
|
// CSD (pin 4) -> GPIO12: Chip enable (HIGH=on, LOW=shutdown)
|
|
// CTX (pin 6) -> GPIO41: Switch between Receive LNA Mode and Receive Bypass Mode. (HIGH=RX bypass, LOW=RX LNA)
|
|
// VCC0/VCC1 -> Vfem via U3 LDO, controlled by GPIO30
|
|
// KCT8103L FEM: TX/RX path switching is handled by DIO2 -> CPS pin (via SX126X_DIO2_AS_RF_SWITCH)
|
|
|
|
#define USE_KCT8103L_PA
|
|
#define LORA_PA_POWER (0 + 30) // VFEM_Ctrl - KCT8103L LDO power enable
|
|
#define LORA_KCT8103L_PA_CSD (0 + 12) // CSD - KCT8103L chip enable (HIGH=on)
|
|
#define LORA_KCT8103L_PA_CTX \
|
|
(32 + 9) // CTX - Switch between Receive LNA Mode and Receive Bypass Mode. (HIGH=RX bypass, LOW=RX LNA)
|
|
|
|
/*
|
|
* SPI Interfaces
|
|
*/
|
|
#define SPI_INTERFACES_COUNT 2
|
|
|
|
// For LORA, spi 0
|
|
#define PIN_SPI_MISO (0 + 14)
|
|
#define PIN_SPI_MOSI (0 + 11)
|
|
#define PIN_SPI_SCK (32 + 8)
|
|
|
|
#define PIN_SPI1_MISO \
|
|
ST7735_MISO // FIXME not really needed, but for now the SPI code requires something to be defined, pick an used GPIO
|
|
#define PIN_SPI1_MOSI ST7735_SDA
|
|
#define PIN_SPI1_SCK ST7735_SCK
|
|
|
|
/*
|
|
* GPS pins
|
|
*/
|
|
#define GPS_UC6580
|
|
#define GPS_BAUDRATE 115200
|
|
#define PIN_GPS_RESET (32 + 14) // An output to reset UC6580 GPS. As per datasheet, low for > 100ms will reset the UC6580
|
|
#define GPS_RESET_MODE LOW
|
|
#define PIN_GPS_EN (0 + 6)
|
|
#define GPS_EN_ACTIVE LOW
|
|
#define PERIPHERAL_WARMUP_MS 1000 // Make sure I2C QuickLink has stable power before continuing
|
|
#define PIN_GPS_PPS (32 + 11)
|
|
#define GPS_TX_PIN (0 + 25) // This is for bits going TOWARDS the CPU
|
|
#define GPS_RX_PIN (0 + 23) // This is for bits going TOWARDS the GPS
|
|
|
|
#define GPS_THREAD_INTERVAL 50
|
|
|
|
#define PIN_SERIAL1_RX GPS_RX_PIN
|
|
#define PIN_SERIAL1_TX GPS_TX_PIN
|
|
|
|
#define ADC_CTRL (32 + 15)
|
|
#define ADC_CTRL_ENABLED HIGH
|
|
#define BATTERY_PIN (0 + 3)
|
|
#define ADC_RESOLUTION 14
|
|
|
|
#define BATTERY_SENSE_RESOLUTION_BITS 12
|
|
#define BATTERY_SENSE_RESOLUTION 4096.0
|
|
#undef AREF_VOLTAGE
|
|
#define AREF_VOLTAGE 3.0
|
|
#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
|
|
#define ADC_MULTIPLIER (4.916F)
|
|
|
|
// rf52840 AIN1 = Pin 3
|
|
#define BATTERY_LPCOMP_INPUT NRF_LPCOMP_INPUT_1
|
|
|
|
// We have AIN1 with a VBAT divider so AIN1 = VBAT * (100/490)
|
|
// We have the device going deep sleep under 3.1V, which is AIN1 = 0.63V
|
|
// So we can wake up when VBAT>=VDD is restored to 3.3V, where AIN2 = 0.67V
|
|
// Ratio 0.67/3.3 = 0.20, so we can pick a bit higher, 2/8 VDD, which means
|
|
// VBAT=4.04V
|
|
#define BATTERY_LPCOMP_THRESHOLD NRF_LPCOMP_REF_SUPPLY_2_8
|
|
|
|
#define HAS_RTC 0
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------------------
|
|
* Arduino objects - C++ only
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
#endif
|