[sourcecode language=\u00a0\u00bbcpp\u00a0\u00bb] #include <xc.h> #pragma config FOSC = INTOSC_EC \/\/ Utilisation de l’OSC interne avec vitesse par defaut (1Mhz) \/\/ *************************************************** \/\/ *************************************************** init_XLCD();<\/p>\n afficherMsgAvecDelai("Attention le", 1, 0); while (END_OF_TIME) { \/\/ *************************************************** \/\/ *************************************************** \/\/ *************************************************** \/\/ *************************************************** \/\/ *************************************************** \/\/ *************************************************** \/\/ *************************************************** \/\/ *************************************************** \/\/ *************************************************** [\/sourcecode]<\/p>\n","protected":false},"excerpt":{"rendered":" Sample code that displays on a LCD using the xlcd XC8\u00a0library Note: The internal clock is used with the default clock\u00a0rate of 1 MHz. Download\u00a0proteus project using a PIC 18F85K22: ———————————————————————————————– Voici un exemple de code qui permet d’afficher sur un LCD en utilisant la librairie xlcd sous xc8 Note: L’horloge interne est utilis\u00e9e avec […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-927","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ve2cuy.com\/blog\/index.php\/wp-json\/wp\/v2\/pages\/927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ve2cuy.com\/blog\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ve2cuy.com\/blog\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ve2cuy.com\/blog\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ve2cuy.com\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=927"}],"version-history":[{"count":0,"href":"https:\/\/ve2cuy.com\/blog\/index.php\/wp-json\/wp\/v2\/pages\/927\/revisions"}],"wp:attachment":[{"href":"https:\/\/ve2cuy.com\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"montage\"](\"http:\/\/ve2cuy.com\/blog\/wp-content\/uploads\/2014\/08\/montage.png\")
<\/a>R\u00e9f\u00e9rence LCD<\/a><\/p>\n
\n\/*
\n* Info sur le LCD: http:\/\/www.studentcompanion.co.za\/post\/2013\/05\/21\/Interfacing-LCD-Display-With-PIC-Microcontroller-XC8
\n* —————————————————————————–
\n* Description: Afficher sur le LCD en utilisant plib\/xlcd.h
\n* —————————————————————————–
\n* Directives de connexions du PIC avec le LCD:
\n*
\n* Ce projet utilise les valeurs par d\u00e9faut de plib\/xlcd.h sur BUS 4 bits
\n*
\n* LCD PIN PIC PIN
\n* RW 5 RB6 39
\n* RS 4 RB5 38
\n* E 6 RB4 37
\n*
\n* DATA sur 4 bits
\n* LCD PIN PIC PIN
\n* D4 11 RB0 33
\n* D5 12 RB1 34
\n* D6 13 RB2 35
\n* D7 14 RB3 36
\n*\/<\/p>\n
\n#include <plib\/xlcd.h><\/p>\n
\n#pragma config LVP = 0; \/\/ LCD ne fonctionne pas avec ce bit \u00e0 ON! Quelqu’un peut expliquer pourquoi?
\n#define _XTAL_FREQ 1000000 \/\/ Constante requise pour __delay_ms()
\n#define END_OF_TIME 1
\n#define LINE_2 0x40<\/p>\n
\n\/\/ Prototypes des fonctions locales au projet
\n\/\/ ***************************************************
\nvoid init_XLCD(void);
\nvoid cls(void);
\nvoid DelayFor18TCY(void);
\nvoid DelayPORXLCD(void);
\nvoid DelayXLCD(void);
\nvoid uneDemieSeconde(void);
\nvoid afficherMsgAvecDelai(char * msg[], int sec, int position);<\/p>\n
\nvoid main(void) {
\n\/\/ ***************************************************
\n TRISD = 0;<\/p>\n
\n afficherMsgAvecDelai("spectacle ", 1, LINE_2);
\n afficherMsgAvecDelai("debute NOW! ", 3, 0);
\n cls();<\/p>\n
\n PORTD = 0xFF;
\n afficherMsgAvecDelai("Je suis le ", 1, 0);
\n afficherMsgAvecDelai("message du jour", 1, 0);
\n afficherMsgAvecDelai("** Be happy! **", 2, LINE_2);
\n PORTD = 0x00;
\n uneDemieSeconde(); \/\/delay();
\n cls();
\n } \/\/ while END_OF_TIME
\n} \/\/ main()<\/p>\n
\n\/\/ Fonctions locales au projet<\/p>\n
\nvoid init_XLCD(void)
\n\/\/ ***************************************************
\n{
\n OpenXLCD(FOUR_BIT&LINES_5X7); \/\/ configure LCD: 4-bit, 5x7char, multi-lines
\n while(BusyXLCD()); \/\/ Wait until LCD !busy
\n WriteCmdXLCD(0x06); \/\/ cursor right, don’t shift display
\n WriteCmdXLCD(0x0C); \/\/ display on without cursor
\n } \/\/ init_XLCD<\/p>\n
\nvoid cls(void){
\n\/\/ ***************************************************
\n while(BusyXLCD()); \/\/Check if the LCD controller is not busy
\n WriteCmdXLCD(0x01); \/\/ Clear LCD
\n} \/\/ cls<\/p>\n
\nvoid uneDemieSeconde(void){
\n\/\/ ***************************************************
\n for (int i=0;i<10;i++)
\n __delay_ms(50);
\n} \/\/ uneDemieSeconde<\/p>\n
\nvoid afficherMsgAvecDelai(char * msg[], int sec, int position) {
\n\/\/ ***************************************************
\n while(BusyXLCD());
\n SetDDRamAddr(position);
\n while(BusyXLCD());
\n putrsXLCD( msg );
\n while(BusyXLCD());
\n for (int i = 0 ; i<sec; i++) {
\n uneDemieSeconde();
\n }
\n} \/\/ afficherMsgAvecDelai<\/p>\n
\n\/\/ Impl\u00e9mentation des routines de d\u00e9lais pour plib\/xlcd.h
\n\/\/ Note: Il faut d\u00e9finir la constante suivante:
\n\/\/ #define _XTAL_FREQ 8000000 \/\/ Note: 8MHz est un exemple<\/p>\n
\nvoid DelayFor18TCY(void)
\n{ __delay_us(36); \/\/ Value of ’18’ did not work for me!
\n}<\/p>\n
\nvoid DelayPORXLCD(void)
\n{ __delay_ms(15); }<\/p>\n
\nvoid DelayXLCD(void)
\n{ __delay_ms(5); }<\/p>\n