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-   -   LCD với PIC18f4550 (http://www.picvietnam.com/forum/showthread.php?t=31236)

trienst 21-11-2012 03:13 AM

LCD với PIC18f4550
 
1 Attachment(s)
mình mới chuyển qua PIC18f, sau khi tham khảo chán chê mê mỏi các topic thì mình viết 1 đoạn code hiển thị lcd, tuy nhiên khi mô phỏng trên proteus thì ko thấy chạy, mình viết bằng C18, mong mọi người giúp đỡ
#include <p18cxxx.h>
#include<delays.h>
#include<xlcd1.h>
#include<xlcd1.c>
#pragma config PWRT = ON,BOR = OFF,WDT = OFF,PBADEN = OFF
unsigned char FullName[] ="NGUYEN TIEN TRIEN";
unsigned char Birthday[]="Date:22/02/1991";
//////////////////
void main(void)
{
unsigned char config = 0xFF,i=0,addr=0,data=0;
ADCON1 = 0xFF;
config = EIGHT_BIT & LINES_5X7;
PORTA=0;
PORTB=0;
//******** cau hinh LCD 8bit va ma tran hien thi 5x7 *********************************
OpenXLCD(config);
while(BusyXLCD()); //cho cho toi khi LCD het ban

//*********** HIEN THI ********
while (1)
{
WriteCmdXLCD(0x06);
SetDDRamAddr(0x00); //80
while(BusyXLCD()); //cho ban
putsXLCD(FullName); //hien thi FullName
while(BusyXLCD()); //cho ban
SetDDRamAddr(0xC0); //hien thi bat dau o dong thu 2
while(BusyXLCD()); //cho ban
putsXLCD(Birthday); //hien thi Birthday
while(BusyXLCD()); //cho ban
Delay10KTCYx(1000);
}
}




đây là file xlcd1.h


#ifndef __XLCD1_H
#define __XLCD1_H

/* PIC18 XLCD peripheral routines.
*
* >>>>>>>>>>> MODIFIED BY DWD FOR THE PICDEM 2 PLUS LCD SETUP
*
* Notes:
* - These libraries routines are written to support the
* Hitachi HD44780 LCD controller.
* - The user must define the following items:
* - The LCD interface type (4- or 8-bits)
* - If 4-bit mode
* - whether using the upper or lower nibble
* - The data port
* - The tris register for data port
* - The control signal ports and pins
* - The control signal port tris and pins
* - The user must provide three delay routines:
* - DelayFor18TCY() provides a 18 Tcy delay
* - DelayPORXLCD() provides at least 15ms delay
* - DelayXLCD() provides at least 5ms delay
*/

/* Interface type 8-bit or 4-bit
* For 8-bit operation uncomment the #define BIT8
*/
/* #define BIT8 */

/* When in 4-bit interface define if the data is in the upper
* or lower nibble. For lower nibble, comment the #define UPPER
*/
/* #define UPPER */

/* DATA_PORT defines the port to which the LCD data lines are connected */
/* FOR PICDEM 2 PLUS - USE PORTB */

#define DATA_PORT PORTB
#define TRIS_DATA_PORT TRISB

/* CTRL_PORT defines the port where the control lines are connected.
* These are just samples, change to match your application.
*/
/* FOR PICDEM 2 PLUS - USE PORTA */
#define RW_PIN LATAbits.LATA1 /* PORT for RW */
#define TRIS_RW TRISAbits.TRISA1 /* TRIS for RW */
#define RS_PIN LATAbits.LATA2 /* PORT for RS */
#define TRIS_RS TRISAbits.TRISA2 /* TRIS for RS */
#define E_PIN LATAbits.LATA0 /* PORT for E */
#define TRIS_E TRISAbits.TRISA0 /* TRIS for E */
/* Adjustment of XLCD Violin*/


/* Display ON/OFF Control defines */
#define DON 0b00001111 /* Display on */
#define DOFF 0b00001011 /* Display off */
#define CURSOR_ON 0b00001111 /* Cursor on */
#define CURSOR_OFF 0b00001101 /* Cursor off */
#define BLINK_ON 0b00001111 /* Cursor Blink */
#define BLINK_OFF 0b00001110 /* Cursor No Blink */

/* Cursor or Display Shift defines */
#define SHIFT_CUR_LEFT 0b00010000 /* Cursor shifts to the left */
#define SHIFT_CUR_RIGHT 0b00010100 /* Cursor shifts to the right */
#define SHIFT_DISP_LEFT 0b00011000 /* Display shifts to the left */
#define SHIFT_DISP_RIGHT 0b00011100 /* Display shifts to the right */

/* Function Set defines */
#define FOUR_BIT 0b00101100 /* 4-bit Interface */
#define EIGHT_BIT 0b00111100 /* 8-bit Interface */
#define LINE_5X7 0b00110000 /* 5x7 characters, single line */
#define LINE_5X10 0b00110100 /* 5x10 characters, single line */
#define LINES_5X7 0b00111000 /* 5x7 characters, multiple line */
#define LINES_5X10 0b00111100 /* 5x10 characters */

#define PARAM_SCLASS auto
#define MEM_MODEL far /* Change this to near for small memory model */

#endif

trienst 22-11-2012 01:07 AM

các bác vào giúp e với:(


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