Problem interfacing HD77480 LCD to LCP1769

Hello, I am having problem interfacing HD77480 controller based 16x2 LCD to LCP1769 mcu in 4 bit mode. The black line never disappears. I also tried adding pull-up resisors, however that doesn't solve the problem. I ported code which I wrote for AVR, it was working just fine with it. Maybe there are problems with delays? I also attached LED's on data lines and I see that data is being sent, however screen doesn't show anything.

#include <cr_section_macros.h>
#include <NXP/crp.h>
__CRP const unsigned int CRP_WORD = CRP_NO_CRP;
#include "lpc17xx.h"
#include "type.h"

#define RS 0
#define EN 2

void init(void);
void writeCmd(unsigned char a);
void writedat(unsigned char b);
void sendstring(unsigned char *c);
void delay(int count);
void high_to_low_pulse(void);
void setdata(unsigned int data);
unsigned char i,j;
unsigned char vardas[] = "Andrius";

void init()
{
writeCmd(0x02);
writeCmd(0x28);//4 bit mode, 2 display lines
writeCmd(0x0C);
writeCmd(0x06);
}

void writeCmd(unsigned char a)
{
LPC_GPIO2->FIOCLR = (1 << RS);
setdata(a);//(a >> 4);
high_to_low_pulse();
setdata(a<<4);//(a & 0x0F);
high_to_low_pulse();
}

void writedat(unsigned char b)
{
LPC_GPIO2->FIOSET = (1 << RS);
setdata(b);//(b >> 4);
high_to_low_pulse();
setdata(b<<4);//(b & 0x0F);
high_to_low_pulse();
}

void sendstring(unsigned char *c)
{
     while(*c)
     writedat(*c++);
}

void delay(int count)
{
int j=0, i=0;
for (j=0;j<count;j++)
for (i=0;i<900;i++);
}

void high_to_low_pulse(void)
{
LPC_GPIO2->FIOSETL = (1 << EN);
delay(10);
LPC_GPIO2->FIOCLRL = (1 << EN);
}

void setdata(unsigned int data)
{
        if (data & (1<<0))
                LPC_GPIO2->FIOSET0 = (1<<3);
        else
                LPC_GPIO2->FIOCLR0 = (1<<3);
        if (data & (1<<1))
                LPC_GPIO2->FIOSET0 = (1<<4);
        else
                LPC_GPIO2->FIOCLR0 = (1<<4);
        if (data & (1<<2))
                LPC_GPIO2->FIOSET0 = (1<<5);
        else
                LPC_GPIO2->FIOCLR0 = (1<<5);
        if (data & (1<<3))
                LPC_GPIO2->FIOSETL = (1<<6);
        else
                LPC_GPIO2->FIOCLRL = (1<<6);
}

int main(void)
{
        LPC_PINCON->PINSEL2 &= ~(0xFFFFFFFF);
        //LPC_PINCON->PINSEL2 |= (1 << 3)|(1 << 4)|(1 << 5)|(1 << 6);
        LPC_GPIO2->FIODIR |=(1 << RS)|(1 << EN)|(1 << 3)|(1 << 4)|(1 << 5)|(1 << 6);
        init();
        writeCmd(0x80);
        sendstring(vardas);
        while(1);
        return 0;
}