黄色いアイツの液晶＋タッチパネル＋SDカードを使う

タッチパネルをソフトウェアSPIで使用してSPI2系統を液晶とSDカードで使う

#ifndef _H_my_LovyanGFX_setting_
#define _H_my_LovyanGFX_setting_

#include <LovyanGFX.hpp>
#define LGFX_USE_V1


class LGFX : public lgfx::LGFX_Device
{
    lgfx::Panel_ILI9341 _panel_instance;
    lgfx::Bus_SPI       _bus_instance;
    lgfx::Light_PWM     _light_instance;
    lgfx::Touch_XPT2046 _touch_instance;
  public:
    LGFX(void)
    {
      {
        auto cfg = _bus_instance.config();

        // SPIバスの設定
        cfg.spi_host         = VSPI_HOST;
        cfg.spi_mode         = 0;
        cfg.freq_write       = 40000000;
        cfg.freq_read        = 16000000;
        cfg.spi_3wire        = true;
        cfg.use_lock         = true;
        cfg.dma_channel      = SPI_DMA_CH_AUTO;
        cfg.pin_sclk         = 14; // 変更
        cfg.pin_mosi         = 13; // 変更
        cfg.pin_miso         = 12; // 変更
        cfg.pin_dc           =  2; // 変更

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

      {
        auto cfg = _panel_instance.config();

        cfg.pin_cs           =    15; // 変更
        cfg.pin_rst          =    -1; // 変更
        cfg.pin_busy         =    -1; // 変更

        cfg.panel_width      =   240;
        cfg.panel_height     =   320;
        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       = false; // 変更

        _panel_instance.config(cfg);
      }

      {
        auto cfg = _light_instance.config();

        cfg.pin_bl = 21;              // 変更
        cfg.invert = false;
        cfg.freq   = 44100;           
        cfg.pwm_channel = 7;

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

      {
        auto cfg = _touch_instance.config();

        cfg.x_min      =  300;  // 変更
        cfg.x_max      = 3900;  // 変更
        cfg.y_min      = 3700;  // 変更
        cfg.y_max      =  200;  // 変更
        cfg.pin_int    = -1;    // 変更
        cfg.bus_shared = false; // 変更
        cfg.offset_rotation = 0;

        cfg.spi_host = -1; // 変更(-1でソフトウェアSPIになる)
        cfg.freq = 1000000;
        cfg.pin_sclk = 25;        // 変更
        cfg.pin_mosi = 32;        // 変更
        cfg.pin_miso = 39;        // 変更
        cfg.pin_cs   = 33;        // 変更

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

      setPanel(&_panel_instance);
    }
};
#endif

SD(HSPIで使う)

SPIClass SPISD(HSPI);

void lv_port_fs_init(void)
{
    /*----------------------------------------------------
     * Initialize your storage device and File System
     * -------------------------------------------------*/
    fs_init();

    /*---------------------------------------------------
     * Register the file system interface in LVGL
     *--------------------------------------------------*/

    /*Add a simple drive to open images*/
    static lv_fs_drv_t fs_drv;
    lv_fs_drv_init(&fs_drv);

    /*Set up fields...*/
    fs_drv.letter = 'P';
    fs_drv.open_cb = fs_open;
    fs_drv.close_cb = fs_close;
    fs_drv.read_cb = fs_read;
    fs_drv.write_cb = fs_write;
    fs_drv.seek_cb = fs_seek;
    fs_drv.tell_cb = fs_tell;

    fs_drv.dir_close_cb = fs_dir_close;
    fs_drv.dir_open_cb = fs_dir_open;
    fs_drv.dir_read_cb = fs_dir_read;

    lv_fs_drv_register(&fs_drv);
}

/**********************
 *   STATIC FUNCTIONS
 **********************/

/*Initialize your Storage device and File system.*/
static void fs_init(void)
{
    /*E.g. for FatFS initialize the SD card and FatFS itself*/
  enum { spi_sck = 18, spi_miso = 19, spi_mosi = 23, spi_ss = 5 };
    /*You code here*/
//    LittleFS.begin();
  SPISD.begin(spi_sck, spi_miso, spi_mosi, spi_ss);
  if (!SD.begin(spi_ss, SPISD,24000000)) {
    Serial.println("Card Mount Failed");
  }

}