Révision 864
Ajouté par smseck1 il y a presque 4 ans
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/***********************************************************************/
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#include "sfr32c87.h"
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int trame_ok;
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//int trame_ok=0;
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//les prototypes
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void uart0_init (void);
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void uart0_tx(char c);
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void alphabet(char *chaine);
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char uart0_rx(void);
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int rectrame (char *buffer);
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//int rectrame (char *buffer);
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//void irectrame();
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typedef enum
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{
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| ... | ... | |
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while(ri_u0c1!=1);
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return u0rb;
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}
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/*int rectrame(char *buffer)
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{
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int i = 0;
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char caractere_recu;
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char checksum = '0';
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caractere_recu = uart0_rx(); //lecture du caractere recu*
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caractere_recu = uart0_tx(); //lecture du caractere recu*
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while ( caractere_recu != '$')//detection trame
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{
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i = 0;
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i = 0;//nombre de caract?res pr?sents dans la trame
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checksum = 0;
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}
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| ... | ... | |
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checksum = checksum ^ caractere_recu;
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}
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return i ;
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return i ;
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}*/
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int rectrame(char *buffer)
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{
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int k=0;
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int nombre_caractere_apres_etoile=0;
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int nombre_caractere=0;
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char caractere_recu;
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char checksum_trame=0;
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char checksum_fin_trame[];
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char checksum_calculer=0;
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while(1)
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{
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if (caractere_recu == '$')
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{
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nombre_caractere = 0;
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etat=reception;
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checksum_trame=0;
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}
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if (caractere_recu !='*')
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{
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buffer[nombre_caractere] = caractere_recu;
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nombre_caractere++;
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checksum_trame ^= caractere_recu;
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nombre_caractere_apres_etoile = 0;
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}
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else
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{
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etat =checksum;
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}
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if (nombre_caractere_apres_etoile==2)
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{
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etat=validation;
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checksum_calculer=hex_int(checksum_fin_trame);
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}
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nombre_caractere_apres_etoile++;
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if (checksum_trame==checksum_calculer)
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{
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etat = synchronisation;
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return nombre_caractere;
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}
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else
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etat = synchronisation;
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return 0;
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return buffer[];
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}
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}
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void main ()
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{
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char chaine[]= "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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char buffer[80];
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int i=0;
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uart0_init();
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while(1)
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// rectrame(i);
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alphabet(chaine);
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RecTrame(buffer);
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}
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Formats disponibles : Unified diff
SP4c3 reste a vaalider irectrame