Pix + I2C + Lc Display (Hd44780)

[StasRadeon]

Люди добрые, помогите кто может!

потому что имею HD44780 + PCF8547, хотел сделать i2c library.

скажите пожалуйста где делаю неправильно.

прикрепляю PrintScreen от Proteus ISIS

#include <htc.h>
#define _XTAL_FREQ 4000000

//********************************************************
#pragma config FOSC = INTRC_CLKOUT// Oscillator Selection bits (INTOSC oscillator: CLKOUT function on RA6/OSC2/CLKOUT pin, I/O function on RA7/OSC1/CLKIN)
#pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT disabled and can be enabled by SWDTEN bit of the WDTCON register)
#pragma config PWRTE = OFF // Power-up Timer Enable bit (PWRT disabled)
#pragma config MCLRE = OFF // RE3/MCLR pin function select bit (RE3/MCLR pin function is digital input, MCLR internally tied to VDD)
#pragma config CP = OFF // Code Protection bit (Program memory code protection is disabled)
#pragma config CPD = OFF // Data Code Protection bit (Data memory code protection is disabled)
#pragma config BOREN = ON // Brown Out Reset Selection bits (BOR enabled)
#pragma config IESO = OFF // Internal External Switchover bit (Internal/External Switchover mode is disabled)
#pragma config FCMEN = OFF // Fail-Safe Clock Monitor Enabled bit (Fail-Safe Clock Monitor is disabled)
#pragma config LVP = ON // Low Voltage Programming Enable bit (RB3/PGM pin has PGM function, low voltage programming enabled)

// CONFIG2
#pragma config BOR4V = BOR40V // Brown-out Reset Selection bit (Brown-out Reset set to 4.0V)
#pragma config WRT = OFF // Flash Program Memory Self Write Enable bits (Write protection off)

//********************************************************
#define LCD_DISPLAYMODE 0x08
#define pic_frq 16000 // controller frequenc
#define i2c_frq 400 //

#define gen_frq (((pic_frq / i2c_frq) / 4) - 1)
void i2cByteWrite(char, char, char);
void i2cTxData(char);
void LCD_dat(char);
void LCD_cmd(char);
void LCD_clr(void);
void LCD_int(void);
void LCD_str(char *);
void LCD_ROMstr(const char *);
void LCD_posyx(char,char);
void LCD_hex(char);
void i2c_init();
//////////// Main //////////////////////////////////
void main(void){
char msgStart[] ="LCD Work";
unsigned char num = 0;
OSCCON = 0b00110000; //4Mhz
TRISC = 0b11111111;
PORTC = 0x00;
i2c_init();
LCD_int();
// ------------------------------------------------------
LCD_str(msgStart); //
LCD_dat(' ');
LCD_dat('!');
// ------------------------------------------------------
LCD_posyx(1,0); //
LCD_ROMstr("12345");
while(1){
LCD_posyx(0,14); //
LCD_hex(num++); //
__delay_ms(1000); // 1000msec
}
}
void i2c_init()
{
TRISC3 = 1;
TRISC4 = 1;
SSPSTAT = 0b10000000; // Slew rate disabled
SSPCON = 0b00101000; //(0x28) SSPEN = 1, I2C Master mode, clock = FOSC/(4*(SSPADD+1))
SSPCON2 = 0b00000000; //
SSPADD = gen_frq;
}
// -----------------------------------------------------------
void i2cByteWrite(char addr, char cont, char data){
SEN = 1; // Start condition
while(SEN); // if (Start condition)
i2cTxData(addr); //
i2cTxData(cont); // 
i2cTxData(data); //
SSPIF = 0; // 
PEN = 1; // Stop condition
while(PEN); // Stop condition
}
void i2cTxData(char data){
SSPIF = 0; // 
SSPBUF = data; //
while(!SSPIF); //
}
// -----------------------------------------------------------
void LCD_dat(char chr){
i2cByteWrite(0xA0, 0x80, chr);
__delay_us(60); // 60 usec
}
// -----------------------------------------------------------
void LCD_cmd(char cmd){
i2cByteWrite(0xA0, 0x00, cmd);
if(cmd & 0xFC) // 
__delay_us(60); // 60usec
else
__delay_ms(3); // 3msec
}
// -----------------------------------------------------------
void LCD_clr(void){
LCD_cmd(0x01); //Clear Lcd
}
void LCD_posyx(char ypos, char xpos){
unsigned char pcode;
switch(ypos & 0x03){ // 
case 0: pcode=0x80;break; // 1line
case 1: pcode=0xC0;break; // 2line
case 2: pcode=0x94;break; // 3line
case 3: pcode=0xD4;break; // 4line
}
LCD_cmd(pcode += xpos); //
}
// -----------------------------------------------------------
void LCD_str(char *str){
while(*str) //
LCD_dat(*str++); //
}
// -----------------------------------------------------------
void LCD_ROMstr(const char *str){
while(*str) //
LCD_dat(*str++); //
}
// -----------------------------------------------------------
void LCD_hex(char c){
const char hexch[] ="aaaa";
LCD_dat(hexch[c >> 4]); //
LCD_dat(hexch[c & 0xF]); //
}
// -----------------------------------------------------------
void LCD_int(void){
__delay_ms(100); //
LCD_cmd(0x28); // 4 bit mode
LCD_cmd(LCD_DISPLAYMODE | 0x00); // Display on Cursor=0 Blink=0
LCD_cmd(0x06); // Entry Inc/Dec=1 Shift=0
LCD_cmd(0x01); // Clear Display
}

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