Révision 594
Ajouté par abseck1 il y a presque 4 ans
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/* NOTE:THIS IS A TYPICAL EXAMPLE. */
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/***********************************************************************/
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#define LCD_E
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#define LCD_RW
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#define LCD_DC
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#define LCD_E_DIR
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#define LCD_RW_DIR
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#include "sfr32c87.h"
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#define RS p1_0
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#define RW p1_1
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#define E p1_2
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#define BF p0_7
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void tpo_us(unsigned short duree);
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void tpo_ms(unsigned short duree);
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void lcd_init_port(void);
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void lcd_4b(unsigned char car);
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void lcd_8b(unsigned char car);
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void lcd_car(unsigned char car);
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void lcd_com(unsigned char com);
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void lcd_unit(void);
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void lcd_str(unsigned char *str);
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void tempo(void)
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{
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int i;
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for (i=0 ; i<1000 ;i++)
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asm("nop");
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void lcd_4b(unsigned char car)
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{
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p1_2=1;
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if (car & 0x80)
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p1_7=1;
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else p1_7=0;
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if (car & 0x40)
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p1_6=1;
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else p1_6=0;
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if (car & 0x20)
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p1_5=1;
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else p1_5=0;
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if (car & 0x10)
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p1_4=1;
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else p1_4=0;
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p1_2=0;
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}
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void init_ports_aff(void)
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void lcd_8b(unsigned char car)
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{
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pd0 = 0xff;
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p0 = 0x00;
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pd1= 0xff;
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p1=0x00;
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lcd_4b(car);
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lcd_4b(car<<4);
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}
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void busy(void)
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void lcd_com(unsigned char c)
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{
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pd0=0x00;//entr?e
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RS=0;
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RW=1;
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E=1;
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while(BF!=0);
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E=0;
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pd0=0xff;//sortie
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p1_0=0;
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lcd_8b(c);
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}
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void affiche_caractere(unsigned char caractere)
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void lcd_car(unsigned char car)
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{
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p1_0=1;
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lcd_8b(car);
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}
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void lcd_4b(unsigned char car)
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{
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p3_2=1;
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if (car & 0x80)
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p3_7=1;
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else p1_7=0;
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if (car & 0x40)
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p3_6=1;
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else p1_6=0;
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if (car & 0x20)
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p3_5=1;
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else p1_5=0;
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if (car & 0x10)
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p3_4=1;
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else p1_4=0;
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p3_2=0;
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RS=1;
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RW=0;
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p0=caractere;
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E=1;
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tempo();
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E=0;
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tempo();
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busy();
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}
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void affiche_commande(unsigned char commande)
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void lcd_8b(unsigned char car)
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{
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lcd_4b(car);
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lcd_4b(car<<4);
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}
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RS=0;
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RW=0;
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p0=commande;
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E=1;
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tempo();
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E=0;
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tempo();
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busy();
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void lcd_com(unsigned char c)
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{
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p3_0=0;
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lcd_8b(c);
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}
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void lcd_car(unsigned char car)
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{
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p3_0=1;
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lcd_8b(car);
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}
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void lcd_str(unsigned char *str){
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int i=0;
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while(str[i]='\0')
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str([i]!='\0';
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{
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lcd_car(str[i]);
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i++;
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}
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}
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void tpo_ms(unsigned short duree){
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tcspr = 0x8A;
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ta0mr = 0x82;
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ta0 = duree*1000;
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ta0s = 1;
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ta0os = 1;
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ta0ic = 0x00;
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while(ir_ta0ic != 1);
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ta0s = 0;
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}
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void tpo_us(unsigned short duree){
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tcspr = 0x8A;
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ta0mr = 0x82;
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ta0 = duree;
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ta0s = 1;
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ta0os = 1;
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ta0ic = 0x00;
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while(ir_ta0ic != 1);
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ta0s = 0;
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}
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void lcd_init(void){
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p3_0=0;
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tpo_ms(15);
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lcd_4b(0x30);
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tpo_ms(5);
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lcd_4b(0x30);
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tpo_us(100);
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lcd_4b(0x30);
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tpo_us(100);
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lcd_4b(0x20);
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lcd_com(0x28);
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lcd_com(0x06);
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lcd_com(0x0E);
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lcd_com(0x01);
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tpo_ms(5);
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}
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void main(void)
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{
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unsigned char c[]="Bonjour";
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pd3=0xff;
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lcd_4b(c);
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lcd_8b(c);
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lcd_init();
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lcd_str(c);
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}
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Formats disponibles : Unified diff
suite TP2B