firmware/variants/t-echo/variant.h
geeksville 1a38c4e51d
Remove LED_INVERTED, see below for why ;-) (#4382)
While working on #4378 I noticed a funny problem: the blinking system
LED was on during deep-sleep.  Initially I thought it was some weird
sleep hw config thing but it turns out it was easier but more pervasive.

We had two different preprocessor symbols which both meant approximately the same
thing LED_INVERTED and LED_STATE_ON (though their polarity was opposite).
Some variant files were setting one, others were setting the other, and others were
setting both. heh.

In the case of the board I was testing (seeed tracker wio 1100) it was only setting one
and the default behavior for the other (for all boards) was incorrect.  So I did a grep
and it seems like LED_STATE_ON was used more often, so I kept that one and removed
LED_INVERTED everywhere.
2024-08-05 06:02:32 -05:00

229 lines
6.5 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_TTGO_EINK_V1_0_
#define _VARIANT_TTGO_EINK_V1_0_
/** 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 TTGO_T_ECHO
// 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 + 14) // 13 red (confirmed on 1.0 board)
// Unused(by firmware) LEDs:
#define PIN_LED2 (0 + 15) // 14 blue
#define PIN_LED3 (0 + 13) // 15 green
#define LED_RED PIN_LED3
#define LED_BLUE PIN_LED1
#define LED_GREEN PIN_LED2
#define LED_BUILTIN LED_BLUE
#define LED_CONN PIN_GREEN
#define LED_STATE_ON 0 // State when LED is lit
/*
* 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
#define PIN_BUTTON_TOUCH (0 + 11) // 0.11 is the soft touch button on T-Echo
#define BUTTON_CLICK_MS 400
#define BUTTON_TOUCH_MS 200
/*
* Analog pins
*/
#define PIN_A0 (4) // Battery ADC
#define BATTERY_PIN PIN_A0
static const uint8_t A0 = PIN_A0;
#define ADC_RESOLUTION 14
#define PIN_NFC1 (9)
#define PIN_NFC2 (10)
/*
* Serial interfaces
*/
/*
No longer populated on PCB
*/
// #define PIN_SERIAL2_RX (0 + 6)
// #define PIN_SERIAL2_TX (0 + 8)
// #define PIN_SERIAL2_EN (0 + 17)
/**
Wire Interfaces
*/
#define WIRE_INTERFACES_COUNT 1
#define PIN_WIRE_SDA (26)
#define PIN_WIRE_SCL (27)
/* touch sensor, active high */
#define TP_SER_IO (0 + 11)
#define PIN_RTC_INT (0 + 16) // Interrupt from the PCF8563 RTC
/*
External serial flash WP25R1635FZUIL0
*/
// QSPI Pins
#define PIN_QSPI_SCK (32 + 14)
#define PIN_QSPI_CS (32 + 15)
#define PIN_QSPI_IO0 (32 + 12) // MOSI if using two bit interface
#define PIN_QSPI_IO1 (32 + 13) // MISO if using two bit interface
#define PIN_QSPI_IO2 (0 + 7) // WP if using two bit interface (i.e. not used)
#define PIN_QSPI_IO3 (0 + 5) // HOLD if using two bit interface (i.e. not used)
// On-board QSPI Flash
#define EXTERNAL_FLASH_DEVICES MX25R1635F
#define EXTERNAL_FLASH_USE_QSPI
/*
* Lora radio
*/
#define USE_SX1262
#define USE_SX1268
#define SX126X_CS (0 + 24) // FIXME - we really should define LORA_CS instead
#define SX126X_DIO1 (0 + 20)
// Note DIO2 is attached internally to the module to an analog switch for TX/RX switching
#define SX1262_DIO3 \
(0 + 21) // This is used as an *output* from the sx1262 and connected internally to power the tcxo, do not drive from the main
// CPU?
#define SX126X_BUSY (0 + 17)
#define SX126X_RESET (0 + 25)
// Not really an E22 but TTGO seems to be trying to clone that
#define SX126X_DIO2_AS_RF_SWITCH
#define SX126X_DIO3_TCXO_VOLTAGE 1.8
// Internally the TTGO module hooks the SX1262-DIO2 in to control the TX/RX switch (which is the default for the sx1262interface
// code)
// #define LORA_DISABLE_SENDING // Define this to disable transmission for testing (power testing etc...)
// #undef SX126X_CS
/*
* eink display pins
*/
#define PIN_EINK_EN (32 + 11) // Note: this is really just backlight power
#define PIN_EINK_CS (0 + 30)
#define PIN_EINK_BUSY (0 + 3)
#define PIN_EINK_DC (0 + 28)
#define PIN_EINK_RES (0 + 2)
#define PIN_EINK_SCLK (0 + 31)
#define PIN_EINK_MOSI (0 + 29) // also called SDI
// Controls power for all peripherals (eink + GPS + LoRa + Sensor)
#define PIN_POWER_EN (0 + 12)
// #define PIN_POWER_EN1 (0 + 13)
#define USE_EINK
#define PIN_SPI1_MISO \
(32 + 7) // FIXME not really needed, but for now the SPI code requires something to be defined, pick an used GPIO
#define PIN_SPI1_MOSI PIN_EINK_MOSI
#define PIN_SPI1_SCK PIN_EINK_SCLK
/*
* GPS pins
*/
#define GPS_L76K
#define PIN_GPS_REINIT (32 + 5) // An output to reset L76K GPS. As per datasheet, low for > 100ms will reset the L76K
#define PIN_GPS_STANDBY (32 + 2) // An output to wake GPS, low means allow sleep, high means force wake
// Seems to be missing on this new board
// #define PIN_GPS_PPS (32 + 4) // Pulse per second input from the GPS
#define GPS_TX_PIN (32 + 9) // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN (32 + 8) // This is for bits going TOWARDS the GPS
#define GPS_THREAD_INTERVAL 50
#define PIN_SERIAL1_RX GPS_TX_PIN
#define PIN_SERIAL1_TX GPS_RX_PIN
// PCF8563 RTC Module
#define PCF8563_RTC 0x51
/*
* SPI Interfaces
*/
#define SPI_INTERFACES_COUNT 2
// For LORA, spi 0
#define PIN_SPI_MISO (0 + 23)
#define PIN_SPI_MOSI (0 + 22)
#define PIN_SPI_SCK (0 + 19)
#define PIN_PWR_EN (0 + 6)
// To debug via the segger JLINK console rather than the CDC-ACM serial device
// #define USE_SEGGER
// Battery
// The battery sense is hooked to pin A0 (4)
// it is defined in the anlaolgue pin section of this file
// and has 12 bit resolution
#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 (2.0F)
#define HAS_RTC 1
#ifdef __cplusplus
}
#endif
/*----------------------------------------------------------------------------
* Arduino objects - C++ only
*----------------------------------------------------------------------------*/
#endif