thooge/esp32-nmea2000-obp60
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Modify TFT display initialisiation

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This commit is contained in:
norbert-walter
2026-03-19 17:34:10 +01:00
parent 7c6005958e
commit 5fcca363f8
2 changed files with 50 additions and 8 deletions
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lib/obp60task/OBP60Extensions.h
+48 -6
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@@ -94,16 +94,13 @@ class LGFX : public lgfx::LGFX_Device {
public:
lgfx::Bus_SPI _bus_instance;
#ifdef TFT_320x480_ST7796
LGFX(void) {
{
auto cfg = _bus_instance.config();
cfg.spi_host = SPI2_HOST;
cfg.spi_mode = 0;
#if defined(TFT_320x480_ILI9488)
cfg.freq_write = 40000000;
#else
cfg.freq_write = 80000000;
#endif
cfg.freq_write = 80000000; // High speed ST7796
cfg.freq_read = 16000000;
cfg.pin_sclk = OBP_SPI_CLK;
cfg.pin_mosi = OBP_SPI_DIN;
@@ -121,7 +118,7 @@ public:
cfg.panel_height = 480; // Native hight resolution
cfg.offset_x = 0; // No panel offset: full framebuffer mapping
cfg.offset_y = 0; // No panel offset: full framebuffer mapping
cfg.offset_rotation = 3; // Rotate display content conter clock wise 90 deg
cfg.offset_rotation = 3; // Rotate display content conter clock wise 90 deg ST7796
cfg.dummy_read_pixel = 8;
cfg.dummy_read_bits = 1;
cfg.memory_width = 320;
@@ -139,6 +136,51 @@ public:
// Match Adafruit GFX cursor semantics: y coordinate is text baseline.
setTextDatum(textdatum_t::baseline_left);
}
#endif
#ifdef TFT_320x480_ILI9488
LGFX(void) {
{
auto cfg = _bus_instance.config();
cfg.spi_host = SPI2_HOST;
cfg.spi_mode = 0;
cfg.freq_write = 40000000; // Slow speed ILI9488
cfg.freq_read = 16000000;
cfg.pin_sclk = OBP_SPI_CLK;
cfg.pin_mosi = OBP_SPI_DIN;
cfg.pin_miso = -1;
cfg.pin_dc = OBP_SPI_DC;
_bus_instance.config(cfg);
_panel_instance.setBus(&_bus_instance);
}
{
auto cfg = _panel_instance.config();
cfg.pin_cs = OBP_SPI_CS;
cfg.pin_rst = OBP_SPI_RST;
cfg.pin_busy = -1;
cfg.panel_width = 320; // Native width resolution
cfg.panel_height = 480; // Native hight resolution
cfg.offset_x = 0; // No panel offset: full framebuffer mapping
cfg.offset_y = 0; // No panel offset: full framebuffer mapping
cfg.offset_rotation = 1; // Rotate display content clock wise 90 deg ILI9488
cfg.dummy_read_pixel = 8;
cfg.dummy_read_bits = 1;
cfg.memory_width = 320;
cfg.memory_height = 480;
// cfg.pwm_control not available in this LovyanGFX version
cfg.invert = false;
cfg.rgb_order = false;
cfg.dlen_16bit = false;
cfg.bus_shared = true;
_panel_instance.config(cfg);
}
// No dedicated TFT PWM backlight pin configured on this board.
// Keep backlight handling outside LovyanGFX to avoid LEDC init on invalid GPIO.
setPanel(&_panel_instance);
// Match Adafruit GFX cursor semantics: y coordinate is text baseline.
setTextDatum(textdatum_t::baseline_left);
}
#endif
// compatibility helpers --------------------------------------------------
using lgfx::LGFX_Device::setFont;