Bonjour,

J'ai un code en C pour un PCB à base de micocontroleur Atmel AT89C51SNDC1 qui va lire sur une carte CompactFlash, lorsque je veux lire des valeurs encodées ( adresse du secteur dans la Compactflash ) au clavier je peux le faire avec scanf ou getchar et la solution getchar me semble plus correct mais lorsque je met la fonction scanf en commentaire le programme ne repond pas ? Donc j'utilse les deux instructions scanf et getchar mais alors je n'ai pas de bon résultat pour "CF_ADDRESS_SECT" mais pour "CF_Nb_SECTOR" ça va bien il me semble, comme vous pouvez voir dans mon code.

Ma 1 ère question comment eviter l'utlisation de scanf et comment bien formater la saisie clavier pour CF_ADDRESS_SECT ?


Ma 2 ème question l'affichage des 512 bytes ne semble pas correct , je n'utilise pas bien les paramètres de la fonction cf_read_open(x,x) je pense?

Remarque pour la 2 ème question:

- il s'agit vraiment d'un problème de formattage car ça affiche quasi tous le temps les même caractères pour les différents secteurs (addresses) que je veux lire alors que dans winhex à l'adresse offset 43000 par exemple, je vois différents caractères?

- lorsqu'il n'y a pas de carte CF dans le connecteur CF du pcb, ça affiche C00 au lieu de B00 ?



CODE:
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unsigned long int  CF_ADDRESS_SECT;
unsigned int  CF_Nb_SECTOR;
 
 
void main(void)
{
 
CF_oper=1;  
CF_operations();
 
...
}


La fonction principale:

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void CF_operations (void)
{
if (cf_check_presence()==OK)
 {
  if (gis1)  
  {
  printf("\nCard present\n\r");
  }
/*****************************************************************************************************************
//F: Read_byte to Compact Flash
*****************************************************************************************************************/
 if (CF_oper == 0x01) /*||(STR_IN[31]==0x66))*/
 {
 
     P3_6 = 0x01; //WR
            P3_7 = 0x00; //RD
     P5_2 = 0x00; //CSO    //testali220207 d
     P5_3 = 0x01; //CS1    //testali220207 d
     printf("\nLecture Compact Flash en court\n");
 
 printf("Type CF_ADDRESS_SECT to Read  + <ENTER>:\n");
        scanf ("%li",&CF_ADDRESS_SECT); //test  ATTENTION HERE PROBLEM DETECT  
 
    //   /* 
  do  
  {
   for (j=0;j<32;j++) STR_IN[j]=STR_IN[j+1];
   STR_IN[31]=getchar0();
     printf("%c",STR_IN[31]);
  }
  while (STR_IN[31]!=0x0D);
    printf("\n\r");
    //    */
 
  Menu_Flag=10;
 }
 else
 {
  Menu_Flag=0;
 }
 
 if (Menu_Flag==10)
 {
     //  /* 
  switch (STR_IN[29]) 
      {
   case 0x30:CF_ADDRESS_SECT = 0x00; break;
   case 0x31:CF_ADDRESS_SECT = 0x10; break;
   case 0x32:CF_ADDRESS_SECT = 0x20; break;
   case 0x33:CF_ADDRESS_SECT = 0x30; break;
   case 0x34:CF_ADDRESS_SECT = 0x40; break;
   case 0x35:CF_ADDRESS_SECT = 0x50; break;
   case 0x36:CF_ADDRESS_SECT = 0x60; break;
   case 0x37:CF_ADDRESS_SECT = 0x70; break;
   case 0x38:CF_ADDRESS_SECT = 0x80; break;
   case 0x39:CF_ADDRESS_SECT = 0x90; break;
   case 0x41:CF_ADDRESS_SECT = 0xA0; break;
   case 0x42:CF_ADDRESS_SECT = 0xB0; break;
   case 0x43:CF_ADDRESS_SECT = 0xC0; break;
   case 0x44:CF_ADDRESS_SECT = 0xD0; break;
   case 0x45:CF_ADDRESS_SECT = 0xE0; break;
   case 0x46:CF_ADDRESS_SECT = 0xF0; break;
   default: printf("ERROR\n\r");CF_ADDRESS_SECT = 0x00;
  }
  switch (STR_IN[30])
      {
   case 0x30:CF_ADDRESS_SECT+= 0x00; break;
   case 0x31:CF_ADDRESS_SECT+= 0x01; break;
   case 0x32:CF_ADDRESS_SECT+= 0x02; break;
   case 0x33:CF_ADDRESS_SECT+= 0x03; break;
   case 0x34:CF_ADDRESS_SECT+= 0x04; break;
   case 0x35:CF_ADDRESS_SECT+= 0x05; break;
   case 0x36:CF_ADDRESS_SECT+= 0x06; break;
   case 0x37:CF_ADDRESS_SECT+= 0x07; break;
   case 0x38:CF_ADDRESS_SECT+= 0x08; break;
   case 0x39:CF_ADDRESS_SECT+= 0x09; break;
   case 0x41:CF_ADDRESS_SECT+= 0x0A; break;
   case 0x42:CF_ADDRESS_SECT+= 0x0B; break;
   case 0x43:CF_ADDRESS_SECT+= 0x0C; break;
   case 0x44:CF_ADDRESS_SECT+= 0x0D; break;
   case 0x45:CF_ADDRESS_SECT+= 0x0E; break;
   case 0x46:CF_ADDRESS_SECT+= 0x0F; break;
   default: printf("ERROR\n\r");CF_ADDRESS_SECT = 0x00;
  }
  printf("Address of the logic sector to read is: %Xh! \n",CF_ADDRESS_SECT);
    //   */ 
 
   printf("Type CF_Nb_SECTOR to Read (00->FF) + <ENTER>:\n");
  do  
  {
   for (j=0;j<32;j++) STR_IN[j]=STR_IN[j+1];
   STR_IN[31]=getchar0();
     printf("%c",STR_IN[31]);
  }
  while (STR_IN[31]!=0x0D);
    printf("\n\r");
  switch (STR_IN[29]) 
      {
   case 0x30:CF_Nb_SECTOR = 0x00; break;
   case 0x31:CF_Nb_SECTOR = 0x10; break;
   case 0x32:CF_Nb_SECTOR = 0x20; break;
   case 0x33:CF_Nb_SECTOR = 0x30; break;
   case 0x34:CF_Nb_SECTOR = 0x40; break;
   case 0x35:CF_Nb_SECTOR = 0x50; break;
   case 0x36:CF_Nb_SECTOR = 0x60; break;
   case 0x37:CF_Nb_SECTOR = 0x70; break;
   case 0x38:CF_Nb_SECTOR = 0x80; break;
   case 0x39:CF_Nb_SECTOR = 0x90; break;
   case 0x41:CF_Nb_SECTOR = 0xA0; break;
   case 0x42:CF_Nb_SECTOR = 0xB0; break;
   case 0x43:CF_Nb_SECTOR = 0xC0; break;
   case 0x44:CF_Nb_SECTOR = 0xD0; break;
   case 0x45:CF_Nb_SECTOR = 0xE0; break;
   case 0x46:CF_Nb_SECTOR = 0xF0; break;
   default: printf("ERROR\n\r");CF_Nb_SECTOR = 0x00;
  }
  switch (STR_IN[30])
      {
   case 0x30:CF_Nb_SECTOR+= 0x00; break;
   case 0x31:CF_Nb_SECTOR+= 0x01; break;
   case 0x32:CF_Nb_SECTOR+= 0x02; break;
   case 0x33:CF_Nb_SECTOR+= 0x03; break;
   case 0x34:CF_Nb_SECTOR+= 0x04; break;
   case 0x35:CF_Nb_SECTOR+= 0x05; break;
   case 0x36:CF_Nb_SECTOR+= 0x06; break;
   case 0x37:CF_Nb_SECTOR+= 0x07; break;
   case 0x38:CF_Nb_SECTOR+= 0x08; break;
   case 0x39:CF_Nb_SECTOR+= 0x09; break;
   case 0x41:CF_Nb_SECTOR+= 0x0A; break;
   case 0x42:CF_Nb_SECTOR+= 0x0B; break;
   case 0x43:CF_Nb_SECTOR+= 0x0C; break;
   case 0x44:CF_Nb_SECTOR+= 0x0D; break;
   case 0x45:CF_Nb_SECTOR+= 0x0E; break;
   case 0x46:CF_Nb_SECTOR+= 0x0F; break;
   default: printf("ERROR\n\r");CF_Nb_SECTOR = 0x00;
  }
  printf("Address of the logic sector to read is: %li! \n",CF_ADDRESS_SECT);
  printf("CF_Nb_SECTOR to read is: %Xh! \n",CF_Nb_SECTOR);
 
  Menu_Flag=0;
 
        cf_read_open (CF_ADDRESS_SECT,CF_Nb_SECTOR);
 
        if (lecture_cond == OK)
  {
  printf ("\ncf_read_open is done\n");
  data_lu = cf_read_byte();
 
        printf ("\now call to cf_read_byte() and diplay of data\n");
        for(rrd = 0; rrd < 2000; rrd++);  //delay
 
      for(rd=0;rd<512;rd++)
  {
  testrd[rd]=cf_read_byte(); 
  }
 
  for(rrd = 0; rrd < 512; rrd++)
  {
  printf("%X",testrd[rrd]);
  }
 
        printf("\nDATA LU = %X\n",data_lu); 
  }
  else {printf ("\ncf_read_open is not done\n");}
 
 }

RESULTATS:


INSTL_1_BSY
INSTL_2_BSY
INSTL_5_BSY
ATA_INIT_CF0 Return ATA_INSTALL_BSY
INSTL_CFO_BSY
INSTL_CF1_BSY
INSTL_CF2_OK
ide_status = 0

Ok open
B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00B00
fin cf_operations




Merci de votre aide.