Révision 842
Ajouté par lefraisse il y a presque 4 ans
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/* NOTE:THIS IS A TYPICAL EXAMPLE. */
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/***********************************************************************/
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#include "sfr32c87.h"
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#include <math.h>
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void uart0_init(void);
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void uart0_tx(char c);
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char uart0_rx(void);
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char uart0_rx();
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void alphabet(void);
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int rectrame(char* buffer);
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int hex2int(char*c);
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void main(void)
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{
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char c = 'A'; //Utilis? pour la fonction alphabet
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int i=0,j;
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char table[10][80];
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char buffer[80];
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uart0_init();
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while(1){
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uart0_tx('o');
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//uart0_rx();
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rectrame(buffer);
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//alphabet(); test alphabet
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/* arriv?e d'un caract?re sur le port s?rie
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uart0_tx(c);
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uart0_rx();
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uart0_tx(c+1);
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*/
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/*while (i<10){
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[buffer, j] = rectrame(buffer);
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if (j==63){
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for (i;i<j;i++){
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uart0_tx(buffer[i]);
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}
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i++;
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}
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}
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i=0;*/
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}
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}
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| ... | ... | |
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}
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void uart0_tx(char c){
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//Bits TE et RE ? 1 (condition pour la transmission et la r?ception)
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te_u0c1=1;
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crd_u0c0=1;
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crs_u0c0=0;
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te_u0c1=1;
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crd_u0c0=1;
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crs_u0c0=0;
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while (ti_u0c1=0); //attente
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u0tb=c;
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te_u0c1=0;
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}
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//void uart0_rx((void){
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//while (u0c1_ri=0){
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// return u0rb;
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//}
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//}
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char uart0_rx(){
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while (ri_u0c1=0); //attente
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return u0rb;
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}
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void alphabet(void){
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char ch='A';
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int i;
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for (i=0;i<26;i++){
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uart0_tx(ch);
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ch+=1;
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}
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}
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int rectrame(char *buffer){
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int i=0,cheksum=0;
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while (uart0_rx()!='$'); //attente d'une trame
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while (uart0_rx()!='*'){
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buffer[i]=uart0_rx();
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i++;
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}
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}
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int hex2int(char *c){
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int i;
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int d;
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for (i=0;i<2;i++){
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//Pour des chiffres, la valeur hexad?cimal correspond ? la valeur d?cimal
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if ( (c[i]>'0') && (c[i]<'9')){
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d += (c[i] - '0')*pow(2,-4*(i-1));
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}
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//La valeur d?cimale de A est 10 et au max on aura la lettre F en hexa
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else if ((c[i]>'A')&&(c[i]<'F')){
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d += (c[i]-55)*pow(2,-4*(i-1));
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}
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}
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return d;
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}
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Formats disponibles : Unified diff
Affichage alphabet, affichage de la lettre suivante, réalisation hextoint, finir rectrame