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Projet Afficheur graphique GLCD 64x128 avec PIC16F877 et interruption image 2

Description du montage :

Le montage est constitué d’un afficheur LCD  graphique de dimensions 128×64 (Data Sheet GLCD), le microcontrôleur PIC16F877A et un afficheur BCD 7 Segments.

Routine d’interruption : 

Un bouton poussoir est raccordé avec la broche B0 du port B, Le front montant de RB0 permet de déclencher une interruption.La routine d’interruption sert à afficher des valeurs de 0 à 9 sur l’afficheur BCD 7 Segments puis retourner au programme principal.

Le programme principale :

Le programme principal permet d’afficher en continue (boule fermée) une image statique, du texte puis des cercles avec des rayons différents.

Comment convertir une valeur BCD 7 Segment en valeur décimal (ou hexadécimal) ? 

Le programme MikroC dispose d’un outils très simple pour effectuer la conversions des valeurs BCD 7 Segments en valeur Décimales.

1. Click sur Tools ===> Seven Segment Editor

BCD 7 Segments



2. Tracez la valeur et copier le code en décimal en fonction de votre Afficheur (Cathode ou Anode commune)

BCD 7 Segments 1


Script matlab pour convertir une image en image compatible avec GLCD 

% Dimensions de GLCD
GLCD_rows= 64;

% Intensité de l'image entre 0-1
Intensite = 0.4 ;

% Lecture de l'image
im_in =imread('imTest.jpg');

% Redimensionnement de l'image
im_in=imresize(im_in,[GLCD_rows GLCD_clos]);

% Conversion de l'image en Niveau de Gris
imGray= rgb2gray(im_in);

% Conversion de l'image en image monochromatique
imOut = im2bw(imGray,maps, Intensite);

% Enregistrement de la nouvelle image

Comment intégrer une image sur MikroC ?

1. Click sur Tools ===> GLCD Bitmap Editor

GLCD MikroC 1
2. Click sur Load BMP
3. Copier/Coller le code dans votre interface de programmation MikroC

GLCD MikroC 2

Code MikroC

// Connexions du module GLCD
char GLCD_DataPort at PORTD;

sbit GLCD_CS1 at RB6_bit;
sbit GLCD_CS2 at RB1_bit;
sbit GLCD_RS  at RB2_bit;
sbit GLCD_RW  at RB3_bit;
sbit GLCD_EN  at RB4_bit;
sbit GLCD_RST at RB5_bit;

sbit GLCD_CS1_Direction at TRISB6_bit;
sbit GLCD_CS2_Direction at TRISB1_bit;
sbit GLCD_RS_Direction  at TRISB2_bit;
sbit GLCD_RW_Direction  at TRISB3_bit;
sbit GLCD_EN_Direction  at TRISB4_bit;
sbit GLCD_RST_Direction at TRISB5_bit;

// Tableau  image de taille 1024

const code char im[1024] = { 0,   0,   2,   2,   1,   1,   1,   1,   0,   0,   0,   1,   0,   0,   0,   0...

// Tableau des valeurs BCD pour l'afficheur BCD 7 Segments (0-9)
unsigned short ValSeg[10]={192,207,164,176  ,153  ,146 , 130 , 248 , 128 , 144};
int i ;

// Programme d'interruption PB0
void interrupt ()
     int j;
     // Désactiver toutes les interruptions

     // Si l'indicateur PB0 est active
         // Effacer l'indicateur de l'interruption PB0
               PORTC =ValSeg[j] & 0x7F;
           PORTC =192 & 0x7F;

      // Réactiver les interruptions

void main()

  PORTC= 192;

  // Validation de l'interruption

  // Effacer l'indicateur de l'interruption PB0

  // Initialisation de GLCD
  // Effacer GLCD

      // Afficher l'image sur GLCD

      // Afficher 10 cercles de rayons différents au centre de GLCD
      for (i = 1; i <= 10; i++)
         Glcd_Circle(63,32, 3*i, 1);


      // Afficher le texte sur chaque page (8 pages)
          Glcd_Write_Text("Electronique-Mixte.Fr", 0, i, 1);



Télécharger gratuitement le fichier du projet : Afficheur graphique GLCD 64×128 à base du PIC16F877 et interruption

  1. Montage ISIS
  2. Programme MikroC 
  3. Script matlab


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2 commentaires

saad · 2018-09-27 à 2:21

merci . merci

saad · 2018-09-27 à 2:17

c’est vraiment intéressent! Merci infiniment pour le grand travail que vous avez fourni

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