61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/*
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* main.c
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*
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* Created: 11-Feb-21 11:01:07 PM
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* Author: lemms
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*/
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#define F_CPU 8e6
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#include <xc.h>
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#include <avr/io.h>
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#include <util/delay.h>
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#include <avr/interrupt.h>
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#define LCD_E 3
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#define LCD_RS 2
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void lcd_strobe_lcd_e(void);
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void init_4bits_mode(void);
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void lcd_write_string(char *str);
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void lcd_write_data(unsigned char byte);
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void lcd_write_cmd(unsigned char byte);
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int main(void)
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{
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while(1)
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{
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//TODO:: Please write your application code
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}
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}
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void lcd_strobe_lcd_e(void) {
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PORTC |= (1<<LCD_E); // E high
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_delay_ms(1);
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PORTC &= ~(1<<LCD_E); // E low
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}
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void init_4bits_mode(void) {
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// PORTC output mode and all low (also E and RS pin)
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DDRC = 0xFF;
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PORTC = 0x00;
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PORTC = 0x20; // function for 4-bit 1 row
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lcd_strobe_lcd_e();
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PORTC = 0x20; // function high nibble 4-bit 2 row
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lcd_strobe_lcd_e();
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PORTC = 0x80; // function low nibble 4-bit 2 row
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lcd_strobe_lcd_e();
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PORTC = 0x00; // function high nibble turn on visible blinking-block cursor
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lcd_strobe_lcd_e();
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PORTC = 0xF0; // function low nibble turn on visible blinking-block cursor
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lcd_strobe_lcd_e();
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PORTC = 0x00; // Entry mode set high nibble
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lcd_strobe_lcd_e();
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PORTC = 0x60; // Entry mode set low nibble
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lcd_strobe_lcd_e();
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} |