firmware/src/display.hpp


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#include "hardware/i2c.h"

namespace display
{

// I2C0 on GPIO8 (SDA) and GPIO9 (SCL) running at 400KHz
constexpr auto I2C_PORT = i2c0;
constexpr unsigned I2C_SDA = 8;
constexpr unsigned I2C_SCL = 9;

void
init()
{
    i2c_init(I2C_PORT, 400*1000);
    
    gpio_set_function(I2C_SDA, GPIO_FUNC_I2C);
    gpio_set_function(I2C_SCL, GPIO_FUNC_I2C);
    gpio_pull_up(I2C_SDA);
    gpio_pull_up(I2C_SCL);
}

}