T-Echo-Card support (#10267)
# Conflicts: # src/graphics/draw/UIRenderer.cpp
This commit is contained in:
Thomas Göttgens
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[env:t-echo-card]
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extends = nrf52840_base
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board = t-echo
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board_level = extra
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debug_tool = jlink
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build_flags = ${nrf52840_base.build_flags}
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-I variants/nrf52840/t-echo-card
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-D PRIVATE_HW
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-D T_ECHO_CARD
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build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/t-echo-card>
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@@ -0,0 +1,66 @@
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/*
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Copyright (c) 2014-2015 Arduino LLC. All right reserved.
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Copyright (c) 2016 Sandeep Mistry All right reserved.
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Copyright (c) 2018, Adafruit Industries (adafruit.com)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "variant.h"
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#include "Arduino.h"
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#include "nrf.h"
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#include "wiring_constants.h"
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#include "wiring_digital.h"
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const uint32_t g_ADigitalPinMap[] = {
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// P0 - pins 0 and 1 are hardwired for xtal and should never be enabled
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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,
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// P1
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
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void initVariant()
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{
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// No plain GPIO LEDs on this board (only WS2812 addressable LEDs, not driven here).
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}
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// Reproduces the vendor firmware's boot sequence from
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// examples/original_test/original_test.ino. Runs before Meshtastic touches
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// PIN_POWER_EN, so the RT9080 LDO gets a clean reset pulse and peripherals
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// whose EN pins must be LOW at boot (GPS_EN, GPS_RF_EN, BUZZER) aren't left
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// floating while the 3V3 rail is ramping.
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void earlyInitVariant()
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{
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// 3.3V rail: toggle RT9080_EN HIGH → LOW → HIGH with 100 ms dwell so the
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// LDO enters enable from a known state. The single-shot HIGH in main.cpp
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// is not enough on this hardware — if the chip was in a half-enabled
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// state from a previous reset, the rail brown-outs once LoRa TX fires.
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pinMode(PIN_POWER_EN, OUTPUT);
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digitalWrite(PIN_POWER_EN, HIGH);
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delay(100);
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digitalWrite(PIN_POWER_EN, LOW);
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delay(100);
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digitalWrite(PIN_POWER_EN, HIGH);
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delay(100);
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// Park peripherals with active-high enables LOW so they don't sink
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// current while the rest of setup() runs.
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pinMode(PIN_GPS_STANDBY, OUTPUT);
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digitalWrite(PIN_GPS_STANDBY, LOW);
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pinMode(PIN_GPS_RESET, OUTPUT);
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digitalWrite(PIN_GPS_RESET, LOW);
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pinMode(PIN_BUZZER, OUTPUT);
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digitalWrite(PIN_BUZZER, LOW);
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}
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// Variant definition for LilyGo T-Echo-Card (nRF52840)
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#ifndef _VARIANT_T_ECHO_CARD_
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#define _VARIANT_T_ECHO_CARD_
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/** Master clock frequency */
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#define VARIANT_MCK (64000000ul)
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#define USE_LFXO // Board uses 32kHz crystal for LF
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/*----------------------------------------------------------------------------
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* Headers
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*----------------------------------------------------------------------------*/
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#include "WVariant.h"
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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// Number of pins defined in PinDescription array
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#define PINS_COUNT (48)
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#define NUM_DIGITAL_PINS (48)
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#define NUM_ANALOG_INPUTS (1)
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#define NUM_ANALOG_OUTPUTS (0)
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// LEDs - board only exposes 3x WS2812 addressable LEDs. No plain GPIO LEDs.
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// Intentionally do not define PIN_LED1 on this variant, so nRF52 platform
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// code does not auto-enable a nonexistent GPIO power/status LED.
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#define LED_STATE_ON 1
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// Three independent WS2812 data lines (one LED per line, not a daisy chain).
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// Each is driven as a 1-pixel NeoPixel by StatusLEDModule / ExternalNotification,
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// assigns LED_POWER (red) and LED_NOTIFICATION (green).
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#define WS2812_DATA_1 (32 + 7) // P1.7 - charge/heartbeat (red)
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#define WS2812_DATA_2 (32 + 12) // P1.12 - external notification (green)
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#define WS2812_DATA_3 (0 + 28) // P0.28 - BLE pairing (blue)
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// Wire each WS2812 to a status role. Colour defaults are scaled to 25%
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// brightness (0x40) — the bare-die WS2812s on this board are very bright at
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// full intensity in a close-range enclosure.
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#define NEOPIXEL_STATUS_POWER_PIN WS2812_DATA_1
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#define NEOPIXEL_STATUS_NOTIFICATION_PIN WS2812_DATA_2
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#define NEOPIXEL_STATUS_PAIRING_PIN WS2812_DATA_3
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#define NEOPIXEL_STATUS_POWER_COLOR 0x400000 // red @ 25%
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#define NEOPIXEL_STATUS_NOTIFICATION_COLOR 0x004000 // green @ 25%
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#define NEOPIXEL_STATUS_PAIRING_COLOR 0x000040 // blue @ 25%
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// The charger IC does not blink on its own; let StatusLEDModule do the
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// software blink while charging
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// If left defined: hardware would be expected to handle the charging pulse.
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// #define POWER_LED_HARDWARE_BLINKS_WHILE_CHARGING
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// Buttons
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#define PIN_BUTTON1 (32 + 10) // KEY_1: P1.10
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#define BUTTON_CLICK_MS 400
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// Analog pins
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#define PIN_A0 (0 + 2) // Battery ADC (BATTERY_ADC_DATA)
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#define BATTERY_PIN PIN_A0
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static const uint8_t A0 = PIN_A0;
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#define ADC_RESOLUTION 14
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// BATTERY_MEASUREMENT_CONTROL - enable divider for battery reading
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#define ADC_CTRL (0 + 31)
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#define ADC_CTRL_ENABLED HIGH
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// NFC placeholders, not used
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#define PIN_NFC1 (9)
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#define PIN_NFC2 (10)
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// Wire Interfaces (IIC_1 on the vendor header)
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#define WIRE_INTERFACES_COUNT 1
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#define PIN_WIRE_SDA (32 + 4) // IIC_1_SDA: P1.4
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#define PIN_WIRE_SCL (32 + 2) // IIC_1_SCL: P1.2
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// External serial flash ZD25WQ32CEIGR
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// QSPI Pins
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#define PIN_QSPI_SCK (0 + 4)
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#define PIN_QSPI_CS (0 + 12)
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#define PIN_QSPI_IO0 (0 + 6) // MOSI if using two bit interface
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#define PIN_QSPI_IO1 (0 + 8) // MISO if using two bit interface
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#define PIN_QSPI_IO2 (32 + 9) // WP
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#define PIN_QSPI_IO3 (0 + 26) // HOLD
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// On-board QSPI Flash
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#define EXTERNAL_FLASH_DEVICES ZD25WQ32CEIGR
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#define EXTERNAL_FLASH_USE_QSPI
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// Lora S62F (SX1262)
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#define USE_SX1262
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#define SX126X_CS (0 + 11)
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#define SX126X_DIO1 (32 + 8)
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#define SX126X_DIO2 (0 + 5)
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#define SX126X_BUSY (0 + 14)
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#define SX126X_RESET (0 + 7)
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#define SX126X_RXEN (32 + 1) // SX1262_RF_VC2
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#define SX126X_TXEN (0 + 27) // SX1262_RF_VC1
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#define SX126X_DIO3_TCXO_VOLTAGE 1.8
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// ───────────────────────────────────────────────────────────────────────────
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// OLED display: SSD1315 on I2C @ 0x3C (IIC_1). SSD1315 is register-compatible
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// with SSD1306, so USE_SSD1306 initializes the controller correctly.
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//
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// Viewport: the physical panel is 72×40, mapped into the SSD1315's 128×64
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// GDDRAM at columns 28..99, pages 3..7 (rows 24..63). The firmware handles
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// this by:
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// * asking the library for GEOMETRY_72_40, which sets the framebuffer to
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// 72×40 and emits the right SETMULTIPLEX (39) / SETCOMPINS at init;
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// * relying on SSD1306Wire's built-in horizontal auto-centering
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// ((128 - width) / 2 = 28), so no horizontal shim is needed;
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// * calling SSD1306Wire::setYOffset(3) in Screen.cpp when
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// OLED_Y_OFFSET_PAGES is defined — this shifts every PAGEADDR write by
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// three pages (24 rows) so data lands on the visible rows.
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// ───────────────────────────────────────────────────────────────────────────
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#define HAS_SCREEN 1
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#define USE_SSD1306
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#define OLED_GEOMETRY_OVERRIDE GEOMETRY_72_40
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#define OLED_Y_OFFSET_PAGES 3
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#define OLED_TINY
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// Controls power 3V3 for all peripherals (GPS + LoRa + Sensor)
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#define PIN_POWER_EN (0 + 30) // RT9080_EN
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// SPI1 is unused (no external SPI display). Keep declarations for the core.
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#define PIN_SPI1_MISO (-1)
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#define PIN_SPI1_MOSI (-1)
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#define PIN_SPI1_SCK (-1)
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// GPS pins
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#define GPS_L76K
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#define GPS_BAUDRATE 9600
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#define HAS_GPS 1
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#define PIN_GPS_EN (32 + 15) // GPS_EN: P1.15 - GPS power enable
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#define GPS_EN_ACTIVE 1
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#define PIN_GPS_STANDBY (0 + 25) // GPS_WAKE_UP: P0.25 - wakeup pin
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#define PIN_GPS_PPS (0 + 23) // GPS_1PPS: P0.23
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#define GPS_RX_PIN (0 + 19) // MCU RX ← GPS's TX (vendor GPS_UART_TX / P0.19)
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#define GPS_TX_PIN (0 + 21) // MCU TX → GPS's RX (vendor GPS_UART_RX / P0.21)
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#define PIN_GPS_RESET (0 + 29) // GPS_RF_EN: GPS RF enable / reset
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#define GPS_THREAD_INTERVAL 50
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#define PIN_SERIAL1_RX GPS_RX_PIN
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#define PIN_SERIAL1_TX GPS_TX_PIN
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// SPI Interfaces (LoRa on SPI0)
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#define SPI_INTERFACES_COUNT 2
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// For LORA, SPI 0
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#define PIN_SPI_MISO (0 + 17)
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#define PIN_SPI_MOSI (0 + 15)
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#define PIN_SPI_SCK (0 + 13)
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// Battery
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// The battery sense is hooked to PIN_A0 (P0.2) via a divider controlled by ADC_CTRL.
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#define BATTERY_SENSE_RESOLUTION_BITS 12
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#define BATTERY_SENSE_RESOLUTION 4096.0
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#undef AREF_VOLTAGE
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#define AREF_VOLTAGE 3.0
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#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
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#define ADC_MULTIPLIER (2.0F)
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// Buzzer (PWM output, passive piezo)
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#define PIN_BUZZER (32 + 6) // BUZZER_DATA: P1.6
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// ───────────────────────────────────────────────────────────────────────────
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// I²S speaker (MAX98357 Class-D amp). Stereo I²S data path.
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// Not supported on nrf52. These defines exist for out-of-tree code only.
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// ───────────────────────────────────────────────────────────────────────────
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#define SPEAKER_EN (32 + 11) // P1.11 - amp main enable
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#define SPEAKER_EN_2 (0 + 3) // P0.3 - secondary enable (vendor firmware toggles both)
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#define SPEAKER_BCLK (0 + 16) // P0.16 - I2S bit clock
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#define SPEAKER_DATA (0 + 20) // P0.20 - I2S data (SDOUT)
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#define SPEAKER_WS_LRCK (0 + 22) // P0.22 - I2S word select / LRCK
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// ───────────────────────────────────────────────────────────────────────────
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// PDM microphone (ST MP34DT05).
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// TODO to enable a mic path:
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// Use Adafruit nRF52 core's built-in PDM.h wrapper (Arduino-compatible
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// API exists on nRF52840). Clock on MIC_SCLK, data on MIC_DATA.
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// ───────────────────────────────────────────────────────────────────────────
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#define MIC_SCLK (32 + 3) // P1.3 - PDM clock (MIC_SCLK on vendor header)
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#define MIC_DATA (32 + 5) // P1.5 - PDM data (MIC_DATA on vendor header)
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#define SERIAL_PRINT_PORT 0
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#ifdef __cplusplus
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}
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#endif
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/*----------------------------------------------------------------------------
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* Arduino objects - C++ only
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*----------------------------------------------------------------------------*/
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#endif
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