lvgl on m5sack cores3

mnhj

hi i got a new m5stack core s3 and i want to use squreline studio with lovyan gfx and it does not work . can somone help

ajb2k3

@mnhj what do you mean by doesn't work?

mnhj

@ajb2k3 I want to use arduino ide for programing not uiflow and if you know about tft espi user setup then can you please share the configuration for m5core s3 and when I follow the sticker inside the m5core s3 the screen does not work it just stays blank and no backlight so can you share a code that works

robski

@mnhj said in lvgl on m5sack cores3:

@ajb2k3 I want to use arduino ide for programing not uiflow and if you know about tft espi user setup then can you please share the configuration for m5core s3 and when I follow the sticker inside the m5core s3 the screen does not work it just stays blank and no backlight so can you share a code that works

show us a sample of your code which isn't working
"when I follow the sticker inside the m5core s3 the screen does not work" - what is this?

mnhj

@robski
//sample code arduino

#include <LovyanGFX.hpp>

// Custom class derived from LGFX_Device for M5Core S3
class LGFX : public lgfx::LGFX_Device
{
// Panel instance for ILI9342
lgfx::Panel_ILI9342 _panel_instance;
// SPI bus instance
lgfx::Bus_SPI _bus_instance;
// PWM light instance
lgfx::Light_PWM _light_instance;
// Touch screen instance for FT5x06
lgfx::Touch_FT5x06 _touch_instance;

public:
LGFX(void)
{
{ // Bus configuration
auto cfg = _bus_instance.config();

  // SPI bus settings
  cfg.spi_host = SPI3_HOST;
  cfg.spi_mode = 0;
  cfg.freq_write = 40000000;
  cfg.freq_read  = 16000000;
  cfg.spi_3wire  = false;
  cfg.use_lock   = true;
  cfg.dma_channel = SPI_DMA_CH_AUTO;
  cfg.pin_sclk = 7;
  cfg.pin_mosi = 6;
  cfg.pin_miso = 0;
  cfg.pin_dc   = 4;

  _bus_instance.config(cfg);
  _panel_instance.setBus(&_bus_instance);
}

{ // Panel configuration
  auto cfg = _panel_instance.config();

  cfg.pin_cs           = 5;
  cfg.pin_rst          = 48;
  cfg.pin_busy         = 6;

  cfg.panel_width      = 320;
  cfg.panel_height     = 240;
  cfg.offset_x         = 0;
  cfg.offset_y         = 0;
  cfg.offset_rotation  = 0;
  cfg.dummy_read_pixel = 8;
  cfg.dummy_read_bits  = 1;
  cfg.readable         = true;
  cfg.invert           = false;
  cfg.rgb_order        = false;
  cfg.dlen_16bit       = false;
  cfg.bus_shared       = true;

  _panel_instance.config(cfg);
}

{ // Backlight configuration
  auto cfg = _light_instance.config();

  cfg.pin_bl = 45;
  cfg.invert = false;
  cfg.freq   = 44100;
  cfg.pwm_channel = 7;

  _light_instance.config(cfg);
  _panel_instance.setLight(&_light_instance);
}

{ // Touch screen configuration
  auto cfg = _touch_instance.config();

  cfg.x_min      = 0;
  cfg.x_max      = 319;
  cfg.y_min      = 0;
  cfg.y_max      = 239;
  cfg.pin_int    = 38;
  cfg.bus_shared = true;
  cfg.offset_rotation = 0;

  cfg.spi_host = SPI3_HOST;
  cfg.freq = 1000000;
  cfg.pin_sclk = 18;
  cfg.pin_mosi = 23;
  cfg.pin_miso = 19;
  cfg.pin_cs   = 5;

  _touch_instance.config(cfg);
  _panel_instance.setTouch(&_touch_instance);
}

setPanel(&_panel_instance);

}
};

// Create an instance of the class
LGFX display;

void setup(void)
{
display.init();
display.setTextSize((std::max(display.width(), display.height()) + 255) >> 8);

if (display.touch())
{
if (display.width() < display.height()) display.setRotation(display.getRotation() ^ 1);

display.setTextDatum(textdatum_t::middle_center);
display.drawString("touch the arrow marker.", display.width() >> 1, display.height() >> 1);
display.setTextDatum(textdatum_t::top_left);

std::uint16_t fg = TFT_WHITE;
std::uint16_t bg = TFT_BLACK;
if (display.isEPD()) std::swap(fg, bg);
display.calibrateTouch(nullptr, fg, bg, std::max(display.width(), display.height()) >> 3);

}

display.fillScreen(TFT_BLACK);
}

uint32_t count = ~0;
void loop(void)
{
display.startWrite();
display.setRotation(++count & 7);
display.setColorDepth((count & 8) ? 16 : 24);

display.setTextColor(TFT_WHITE);
display.drawNumber(display.getRotation(), 16, 0);

display.setTextColor(0xFF0000U);
display.drawString("R", 30, 16);
display.setTextColor(0x00FF00U);
display.drawString("G", 40, 16);
display.setTextColor(0x0000FFU);
display.drawString("B", 50, 16);

display.drawRect(30, 30, display.width() - 60, display.height() - 60, count * 7);
display.drawFastHLine(0, 0, 10);

display.endWrite();

int32_t x, y;
if (display.getTouch(&x, &y)) {
display.fillRect(x - 2, y - 2, 5, 5, count * 7);
}
}

mnhj

@robski ```
core s3.PNG
this image

mnhj

@mnhj said in lvgl on m5sack cores3:

@robski ```

this image

the circled area is the sticker ia am talking about

robski

@mnhj have you tried something simple first to start with it ?

mnhj

@robski yes the simple use example I have used before