Révision 535
Ajouté par clbouillot2 il y a presque 4 ans
| SP4b2.c | ||
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void lcd_4b (char c) {
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char valeur4b;
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p3_2=1; //fonction permettant la r?ception des donn?es par l'afficheur
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p3_7=(c & 0b10000000)>>7;
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p3_6=(c & 0b01000000)>>6;
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p3_5=(c & 0b00100000)>>5;
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p3_4=(c & 0b00010000)>>4;
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p3_2=0;
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}
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void tpo_ms (unsigned short duree){
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p3_4=(c & 0b0001);
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p3_5=(c & 0b0010)>>1;
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p3_6=(c & 0b0100)>>2;
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p3_7=(c & 0b1000)>>3;
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duree = duree*1000;
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tcspr = 0x8A;
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ta0mr = 0x82;
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ta0 = duree;
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ta0s = 1;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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p3_2=0;
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}
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tcspr = 0x8A;
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ta0mr = 0x82;
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ta0 = duree;
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ta0s = 1;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_8b (char c) {
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lcd_4b(c);
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| ... | ... | |
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}
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void lcd_car (char c) {
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p3_0=1;
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lcd_8b(c);
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}
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void lcd_str (char *str){
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int i = 0;
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while (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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// initialize the LCD display
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void lcd_init(void)
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| ... | ... | |
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pd3=0xFF;
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p3=0x00;
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p3_0=0 ;
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//tpo_ms(15);
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lcd_4b(0x03);
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//tpo_ms(5);
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lcd_4b(0x03);
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//tpo_us(100);
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lcd_4b(0x03);
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//tpo_us(100);
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lcd_4b(0x02);
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lcd_com(0x82);
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lcd_com(0x60);
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lcd_com(0xE0);
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lcd_com(0x10);
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//tpo_ms(5);
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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 init_keyboard(void){
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pd10 = 0x0f;
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p10=0 ;
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pu31 = 1;
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}
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void main(void){
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//LCD_E=1;
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lcd_init();
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void tpo_50ms(void){
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tcspr = 0x8A;
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ta0mr = 0x82;
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ta0 = 50000;
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ta0s = 1;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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unsigned char touche_c = 0;
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unsigned char touche_appuyee;
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void main(void){
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init_keyboard();
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lcd_init();
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while(1){
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init_keyboard();
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if ( (p10 & 0xf0)!= 0xf0 ){ //les colonnes sont en entr?es
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touche_c = p10 ;
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tpo_50ms() ; // une temporisation entre en oeuvre pour ?viter les ph?nom?nes de rebond
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p10 = 0x0e;
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if ( (p10 & 0xff)== 0xbe ){ //diff?rents tests
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touche_appuyee = '1';
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}
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if ( (p10 & 0xff)== 0xde ){
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touche_appuyee = '2';
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}
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if ( (p10 & 0xff)== 0x7e ){
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touche_appuyee = '3';
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}
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p10 = 0x0d;
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if ( (p10 & 0xff)== 0xbd ){
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touche_appuyee = '4';
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}
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if ( (p10 & 0xff)== 0xdd ){
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touche_appuyee = '5';
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}
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if ( (p10 & 0xff)== 0x7d ){
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touche_appuyee = '6';
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}
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p10 = 0x0b;
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if ( (p10 & 0xff)== 0xeb ){
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touche_appuyee = '7';
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}
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if ( (p10 & 0xff)== 0xdb ){
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touche_appuyee = '8';
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}
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if ( (p10 & 0xff)== 0x7b ){
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touche_appuyee = '9';
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}
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p10 = 0x07;
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if ( (p10 & 0xff)== 0xe7 ){
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touche_appuyee = '*';
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}
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if ( (p10 & 0xff)== 0xd7 ){
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touche_appuyee = '0';
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}
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if ( (p10 & 0xff)== 0x77 ){
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touche_appuyee = '#';
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}
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lcd_car(touche_appuyee);
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lcd_init();
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}
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}
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}
+
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Formats disponibles : Unified diff
couplage lcd et clavier