st7789 boilerplate

// change these to your settings
#define LCD_HOST VSPI
#define PIN_NUM_CS 5
#define PIN_NUM_MOSI 23
#define PIN_NUM_MISO -1
#define PIN_NUM_CLK 18
#define PIN_NUM_DC 2
#define PIN_NUM_RST 4
#define PIN_NUM_BKL 15
#define LCD_WRITE_SPEED_PERCENT 200 // 20Mhz - try 400!
#define LCD_READ_SPEED_PERCENT 200 // 20Mhz - try 400!

#define LCD_ROTATION 1
#define LCD_WIDTH 240 // is this right? should be portrait, not landscape either way.
#define LCD_HEIGHT 320

#include <Arduino.h>
#include <tft_io.hpp>
#include <st7789.hpp>
#include <gfx_cpp14.hpp>

using namespace arduino;
using namespace gfx;

using bus_type = tft_spi_ex<LCD_HOST,
                            PIN_NUM_CS,
                            PIN_NUM_MOSI,
                            PIN_NUM_MISO,
                            PIN_NUM_CLK,
                            SPI_MODE0,
                            false
#ifdef OPTIMIZE_DMA
                            ,(LCD_WIDTH*LCD_HEIGHT)/8+8
#endif
                            >;


using lcd_type = st7789<LCD_WIDTH,
                        LCD_HEIGHT,
                        PIN_NUM_DC,
                        PIN_NUM_RST,
                        PIN_NUM_BKL,
                        bus_type,
                        LCD_ROTATION,
                        LCD_WRITE_SPEED_PERCENT,
                        LCD_READ_SPEED_PERCENT>;

lcd_type lcd;

void setup() {}

void loop() {}