Kaj SchittecatandClaude Opus 4.8
687eb3865c
The V4-R8 uses an ESP32-S3R8 (8 MB OCTAL PSRAM) which claims GPIO33-37, so Heltec moved every control signal off them and the Expansion Kit V2 rebuilt the display/touch/SD block onto a hardware-SPI bus: Vext 36->40 (active-LOW) . GPS_EN 34->42 . LED 35->46 . ADC_Ctrl removed TFT (LovyanGFX HW-SPI): MOSI=15 SCK=16 MISO=45 CS=47 DC=48 RST=21 BL=44 touch (CHSC6x, shares board I2C 17/18) . micro-SD (shared TFT SPI, CS=3) The build defines HELTEC_LORA_V4_TFT too, so it reuses all the V4 touch-UI code; HELTEC_LORA_V4_R8 gates only the deltas. 8 MB enables the on-device web browser (CAP_WEB_BROWSER) and the SD card (CAP_SD). Also wires the board into the release + web-flasher pipeline (release.sh, gen-flasher-meta.py, the flasher picker). UNTESTED — no V4-R8 hardware yet. Pin sources: Meshtastic heltec_v4_r8 variant, Heltec V4-R8 pinmap, and the Expansion_board_V2.03 schematic. All three touch envs build clean; V4/T-Deck unregressed. On-device TODO: CHSC6x shared-Wire on 17/18, SD_CS=3, and the V2 PAM8904 buzzer. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
#include <Arduino.h>
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#include "target.h"
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// Set phase 1 when target.cpp globals start (no Serial - can crash before setup). Read g_boot_phase in setup().
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namespace {
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struct BootTrace {
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BootTrace() { set_boot_phase(1); }
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} _boot_trace;
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}
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HeltecV4Board board;
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#if defined(P_LORA_SCLK)
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#if defined(HELTEC_LORA_V4_R8)
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static SPIClass spi(HSPI); // R8: LoRa on HSPI; the TFT + micro-SD own FSPI (SPI2)
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#else
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static SPIClass spi;
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#endif
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RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
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#else
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RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
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#endif
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WRAPPER_CLASS radio_driver(radio, board);
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ESP32RTCClock fallback_clock;
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ClockFloorRTC rtc_clock(fallback_clock);
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#if ENV_INCLUDE_GPS
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#include <helpers/sensors/MicroNMEALocationProvider.h>
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MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1, &rtc_clock);
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EnvironmentSensorManager sensors = EnvironmentSensorManager(nmea);
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#else
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EnvironmentSensorManager sensors;
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#endif
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#ifdef DISPLAY_CLASS
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#if defined(HELTEC_LORA_V4_R8)
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DISPLAY_CLASS display(&board.periph_power); // LGFXDisplay claims Vext(40) on turnOn
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#else
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DISPLAY_CLASS display(NULL);
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#endif
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MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
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#endif
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bool radio_init() {
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fallback_clock.begin();
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rtc_clock.begin(Wire);
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#if defined(HELTEC_LORA_V4_R8)
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// V4-R8 + Expansion Kit V2: bring up the shared TFT/SD bus on FSPI (SPI2) so
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// LovyanGFX (bus_shared=true) finds an already-begun bus and skips a double
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// spi_bus_initialize, and so the micro-SD mount (main.cpp, CS=3) can share it.
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// MISO=45 is needed for SD reads even though the ST7789 panel is write-only.
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#if PIN_TFT_LEDA_CTL >= 0
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pinMode(PIN_TFT_LEDA_CTL, OUTPUT);
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digitalWrite(PIN_TFT_LEDA_CTL, HIGH);
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delay(50);
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#endif
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SPI.begin(PIN_TFT_SCL, PIN_TFT_MISO, PIN_TFT_SDA, PIN_TFT_CS);
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#endif
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#if defined(P_LORA_SCLK)
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return radio.std_init(&spi);
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#else
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return radio.std_init();
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#endif
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}
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mesh::LocalIdentity radio_new_identity() {
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RadioNoiseListener rng(radio);
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return mesh::LocalIdentity(&rng); // create new random identity
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}
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#if defined(HELTEC_LORA_V4_R8)
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SPIClass* heltecV4R8SharedSPI() {
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return &SPI; // FSPI (SPI2), begun in radio_init() for the TFT + micro-SD
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}
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#endif
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