MikroC code for 8bit LCD.

[Sajjadkhan]

I never used 4bit mode. I can but i have designed my PCB for 8 bit. As there is no library function for 8 bit so i tried to write functions my self. One problem i am having now is sending Array to sub function to display my message but nothing happens. The problem is in LCD_MSG() routine. The program jumps into this routine but never go in the while loop. I know i am doing wrong conversion but in C++ it is possible. can u hep me guys?

void LCD_INTT();
void LCD_CMMD();
void LCD_DTA();
void LCD_MSG(int,char[21]);

sbit EN at RC7_bit;
sbit RW at RC6_bit;
sbit RS at RC5_bit;
sbit pp at RC3_bit;
char message1[21] = " Testing LCD ";
void main()
{
TRISB = 0x00; //lcd port
TRISC = 0x00;
LCD_INTT();
LCD_MSG(128,message1); //128 = 80H = first line
XX: // LED toggling just to see if controller is working.
pp =0;
delay_ms(2000);
pp=1;
delay_ms(2000);

goto xx;
}
void LCD_INTT(){
EN = 0;
Delay_ms(100);
PORTB = 60;
LCD_CMMD();
Delay_ms(1);
PORTB = 15;
LCD_CMMD();
Delay_ms(1);
PORTB = 1;
LCD_CMMD();
Delay_ms(2);
PORTB = 6;
LCD_CMMD();
Delay_ms(1);
}
void LCD_MSG(int R,char Message[21]){
int i=0;
int Asci;
PORTB = 65; //65=A, put to check if this is being printed or not. YES.
LCD_DTA();
PORTB = R;
LCD_CMMD();
While(i!=21)
{
Asci = Message;
i++;
PORTB = Asci;
//portb= 66; added to see if program is jumping in he loop or not. but NO.
LCD_DTA;
Delay_ms(1);
}
}
void LCD_CMMD(){
RS = 0;
RW = 0;
EN = 1;
Delay_ms(1);
EN = 0;
}
void LCD_DTA(){
RS = 1;
RW = 0;
EN = 1;
Delay_ms(1);
EN = 0;
}

 

[xpress_embedo]

void LCD_INTT(){
EN = 0;
Delay_ms(100);
[B][I][U]PORTB = 60;[/U][/I][/B]   //What is this what i thought you want to send Hex 0x38 value but by mistaken you are sending 0x3C(60)
LCD_CMMD();
Delay_ms(1);
[B][I][U]PORTB = 15;[/U][/I][/B]  //Display ON Cursor Blinking .. this part is Okay
LCD_CMMD();
Delay_ms(1);
PORTB = 1;
LCD_CMMD();
Delay_ms(2);
PORTB = 6;
LCD_CMMD();
Delay_ms(1);
}

What 60 to 56 it will work..

Hope you understand what i want to say...

Hope this will help you..

 

[Sajjadkhan]

void LCD_INTT(){
EN = 0;
Delay_ms(100);
[B][I][U]PORTB = 60;[/U][/I][/B]   //What is this what i thought you want to send Hex 0x38 value but by mistaken you are sending 0x3C(60)
LCD_CMMD();
Delay_ms(1);
[B][I][U]PORTB = 15;[/U][/I][/B]  //Display ON Cursor Blinking .. this part is Okay
LCD_CMMD();
Delay_ms(1);
PORTB = 1;
LCD_CMMD();
Delay_ms(2);
PORTB = 6;
LCD_CMMD();
Delay_ms(1);
}

What 60 to 56 it will work..


Hope you understand what i want to say...

Hope this will help you..

Its for initializing the lcd. LCD is jhd204A, controller ks0066.these are decimal numbers. u can convert them in hex. this not an issue though, they are working fine.
I ran this lcd many times using 8051. in that it was simple to print message using DPTR register but i am new to pic and its damn complicated in C.

---------- Post added at 00:36 ---------- Previous post was at 00:35 ----------

https://www.hantronix.com/down/ks0066u.pdf

---------- Post added at 00:43 ---------- Previous post was at 00:36 ----------

Also plz explain this in 4 bit mode:


sbit LCD_RS at RB4_bit;
sbit LCD_EN at RB5_bit;
sbit LCD_D4 at RB0_bit;
sbit LCD_D5 at RB1_bit;
sbit LCD_D6 at RB2_bit;
sbit LCD_D7 at RB3_bit;
---------------------------------------------
I understand this above code as pin assignment. but i don understand the below code.
---------------------------------------------
sbit LCD_RS_Direction at TRISB4_bit;
sbit LCD_EN_Direction at TRISB5_bit;
sbit LCD_D4_Direction at TRISB0_bit;
sbit LCD_D5_Direction at TRISB1_bit;
sbit LCD_D6_Direction at TRISB2_bit;
sbit LCD_D7_Direction at TRISB3_bit;



Its given here in example 10. **broken link removed**

 

[xainnasir]

I think MikroC a bit difficult to use ,i have made such a program using MPLAB with C18 compiler and its just a child's play just simple leds on off