AVR-UTIL/lib/LCD/lcd_package.cpp at master · RecursiveError/AVR-UTIL · GitHub

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/*
liquidcrystal.C
Autor: RecursiveError

biblioteca para display lcd 16x2 compativel com HD44780
Adaptada para o Shift-Register 74HC595
*/
#include <util/delay.h>
#include "IO.hpp"
#include "lcd_package.hpp"

using namespace digitalIO;

namespace liquidcrystal {
    // --------------- LCD595  FUNCTIONS ---------------
    void Lcd595::send(uint8_t value, bool std){
        if(std) this->register_select.set_high();
        else this->register_select.set_low();
        this->controller.send(value >> 4);
        this->pulse();
        this->controller.send(value & 0X0F);
        this->pulse();
    }

    void Lcd595::pulse(){
        this->enable.set_high();
        _delay_us(5);
        this->enable.set_low();
        _delay_us(5);
    }
    void Lcd595::set_pins(){
        this->controller.init().send(0x00);
        this->register_select.output().set_low();
        this->enable.output().set_low();
    }
    void Lcd595::set_cursor(uint8_t line, uint8_t cols){
        uint8_t command = (0x80 | (line<<6)) + cols;
        this->send(command, false);
    }

    // --------------- LCD595  FUNCTIONS ---------------

    //-----------------------------------------------------

    // --------------- LCD_4BITS  FUNCTIONS ---------------
    void Lcd_4bits::send(uint8_t value, bool std){
        if(std) this->register_select.set_high();
        else this->register_select.set_low();
        this->send_nibble(value >> 4);
        this->pulse();
        this->send_nibble(value & 0x0F);
        this->pulse();
    }

    void Lcd_4bits::pulse(){
        this->enable.set_high();
        _delay_us(5);
        this->enable.set_low();
        _delay_us(5);
    }

    void Lcd_4bits::set_pins(){
        this->enable.output().set_low();
        this->register_select.output().set_low();
        for(auto pin : this->pins){
            pin.output().set_low();
        }
    }

    void Lcd_4bits::set_cursor(uint8_t line, uint8_t cols){
        uint8_t command = (0x80 | (line<<6)) + cols;
        this->send(command, false);
    }

    void Lcd_4bits::send_nibble(uint8_t value){
        for(auto pin : this->pins){
            if(value & 0x01){
                pin.set_high();
            }else{
                pin.set_low();
            }
            value >>= 1;
        }
    }


    // --------------- LCD_4BITS  FUNCTIONS ---------------

    //-----------------------------------------------------

    // --------------- LCD2EN_4BITS  FUNCTIONS ---------------

    void Lcd2EN_4bits::send(uint8_t value, bool std){
        if(std){
            this->_corrent->send(value, std);
        }else{
            this->_high.send(value, std);
            this->_low.send(value, std);
        }
    }

    void Lcd2EN_4bits::pulse(){
        //not implemented
    }

    void Lcd2EN_4bits::set_pins(){
        this->_high.set_pins();
        this->_low.set_pins();
    }

    void  Lcd2EN_4bits::set_cursor(uint8_t line, uint8_t cols){
        if(line < 2) this->_corrent = &_high;
        else this->_corrent = &_low;
        uint8_t command = (0x80 | (line<<6)) + cols;
        this->send(command, false);
    }
    // --------------- LCD2EN_4BITS  FUNCTIONS ---------------

    //-----------------------------------------------------

    // --------------- LCD_4BITS  FUNCTIONS ---------------
}