xmega128A1 with HD44780 LCD

[PA3040]

Dear All,

My Xmega128A1 with HD44780 LCD program does not working
It should be much appreciated if any one can advice me

[COLOR=#008000][FONT=Courier New]/* [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New] * My_first.c [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New] * [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New] * Created: 8/11/2013 9:49:37 PM [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New] *  Author: dayan [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New] */ [/FONT][/COLOR]


[COLOR=#008000][FONT=Courier New]#include <avr/io.h> [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]#include <util/delay.h> [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]#define LCD_RS PIN4_bm      /* RS  on pin PC4 */ [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]#define LCD_RW PIN5_bm      /* R/W on pin PC5 */ [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]#define LCD_E  PIN7_bm      /* E   on pin PC7 */ [/FONT][/COLOR]

[COLOR=#008000][FONT=Courier New]#define  my_led1 PIN0_bm //000000001 0x01 [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]#define COMM_PORT PORTC [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]#define DATA_PORT PORTB [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]#define BLINK_DELAY_MS 500 [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]uint8_t lcd_port [5] = {"test"}; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]uint8_t seg =0; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]uint8_t led = 0; [/FONT][/COLOR]

[COLOR=#008000][FONT=Courier New] void main(void){ [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]    [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   PORTF.OUTSET = 0XFF; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   PORTF.DIRSET = 0b00001111 ; // Set pin 0 to be output. [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   PORTJ.DIRSET = 0b11111111 ; // Set pin 0 to be output. [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   PORTH.OUTCLR    = 0Xff; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   PORTH.DIRSET = 0b11111111 ; // Set pin 0 to be output for segments [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   PORTC.DIRSET = 0b11111111 ; [/FONT][/COLOR]

[COLOR=#008000][FONT=Courier New]    [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]    while(1){ [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]       [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]      test_led(); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]      lcd_init(); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]      lcd_display(); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]       [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   }    [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]} [/FONT][/COLOR]

[COLOR=#008000][FONT=Courier New]void lcd_init() { [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   // Initialize the AVR ports and any other hardware bits [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   DATA_PORT.OUT = 0x00;                     // initial data lines all low [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.OUT = 0X00; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   DATA_PORT.DIRSET = 0xff;                  // set the 8-bit data port to all outputs [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.DIRSET = 0Xff; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]    [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   // startup delay - make it long to allow time for power to settle [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   // (you want wish to remove this line) [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms(50); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]    [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   // LCD display initialization by instruction magic sequence [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   lcd_commnd(0x38);         // function set [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms(50); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   lcd_commnd(0x38);         // function set [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms(50); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   lcd_commnd(0x01);         // display on/off control [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms(50); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   lcd_commnd(0x02);         //move cursor to top/left character position [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms(50); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   lcd_commnd(0x0f);         // display clear [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms(50); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   lcd_commnd(0x06);         // entry mode set [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms(50); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   lcd_commnd(0x14);          // Cursor shift [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]    [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]} [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]    [/FONT][/COLOR]


[COLOR=#008000][FONT=Courier New]//This function sets the RS line to write data [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]void lcd_data(unsigned char value) { [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   DATA_PORT.OUT = value; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.OUTSET = LCD_RS;      // set RS line high [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.OUTCLR = LCD_RW; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.OUTSET = LCD_E;      // set E line high [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms(1);               //_delay_ms(1); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.OUTCLR = LCD_E;      // set E line low to latch data into LCD [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   } [/FONT][/COLOR]



[COLOR=#008000][FONT=Courier New]// This function writes a byte to the LCD [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]void lcd_commnd(unsigned char value) { [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   DATA_PORT.OUT = value ;      // Place data on Data Port [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.OUTCLR = LCD_RS; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.OUTCLR = LCD_RW; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.OUTSET = LCD_E;      // set E line high [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms(1);               //_delay_ms(1); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   COMM_PORT.OUTCLR = LCD_E;      // set E line low to latch data into LCD [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]    [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]} [/FONT][/COLOR]

[COLOR=#008000][FONT=Courier New]void lcd_display(){ [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   unsigned int x; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   for (x=0;x<5;x++) [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   { [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]      lcd_data(lcd_port[x]); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   } [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]} [/FONT][/COLOR]

[COLOR=#008000][FONT=Courier New]void test_led(){ [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   PORTF.OUTCLR = my_led1; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms( BLINK_DELAY_MS ); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   PORTF.OUTSET = my_led1; [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]   _delay_ms( BLINK_DELAY_MS ); [/FONT][/COLOR]
[COLOR=#008000][FONT=Courier New]} [/FONT][/COLOR]

Thanks in advance

 

[PA3040]

Dear All

Should any have experience using Xmega 3.3v i/o that connect with HD44780 compatible LCD without using voltage level sifter

I am using RT1602C 2by8 LCD

Please advice