pimoroni-pico/drivers/st7567/st7567.hpp

69 wiersze
2.0 KiB
C++

#pragma once
#include "hardware/spi.h"
#include "hardware/gpio.h"
#include "common/pimoroni_common.hpp"
#include "common/pimoroni_bus.hpp"
#include "libraries/pico_graphics/pico_graphics.hpp"
namespace pimoroni {
class ST7567 : public DisplayDriver {
//--------------------------------------------------
// Constants
//--------------------------------------------------
private:
static const uint8_t ROWS = 128;
static const uint8_t COLS = 64;
static const uint8_t PAGESIZE = 128;
//--------------------------------------------------
// Variables
//--------------------------------------------------
private:
spi_inst_t *spi = spi0;
uint32_t dma_channel;
// interface pins with our standard defaults where appropriate
uint cs = SPI_BG_FRONT_CS;
uint dc = 20;
uint sck = SPI_DEFAULT_SCK ;
uint mosi = SPI_DEFAULT_MOSI;
uint bl = PIN_UNUSED;
uint reset = PIN_UNUSED;
uint32_t spi_baud = 30 * 1024 * 1024;
uint8_t offset_cols = 0;
uint8_t offset_rows = 0;
//--------------------------------------------------
// Constructors/Destructor
//--------------------------------------------------
public:
ST7567(uint16_t width, uint16_t height, Rotation rotate) : ST7567(width, height, rotate, {PIMORONI_SPI_DEFAULT_INSTANCE, SPI_BG_FRONT_CS, SPI_DEFAULT_SCK, SPI_DEFAULT_MOSI, PIN_UNUSED, 20, PIN_UNUSED}) {};
ST7567(uint16_t width, uint16_t height, SPIPins pins, uint busy=26, uint reset=21) :
DisplayDriver(width, height, ROTATE_0),
spi(pins.spi),
CS(pins.cs), DC(pins.dc), SCK(pins.sck), MOSI(pins.mosi), BUSY(busy), RESET(reset) {
init();
}
//--------------------------------------------------
// Methods
//--------------------------------------------------
public:
void update(PicoGraphics *graphics) override;
void set_backlight(uint8_t brightness) override;
private:
void init(bool auto_init_sequence = true);
void command(uint8_t command, size_t len = 0, const char *data = NULL);
};
}